From 02fd16f2eb48210454c0768000898cde87abebb2 Mon Sep 17 00:00:00 2001
From: Chris Koeritz <fred@gruntose.com>
Date: Tue, 17 Dec 2013 12:11:01 -0500
Subject: [PATCH] dropped an old script from linux counter, added new duration
 tracker function which seems to be working nicely.

---
 scripts/core/functions.sh        |    2 +
 scripts/system/machine-update.pl | 1117 ------------------------------
 scripts/time/time_tracker.sh     |   52 ++
 3 files changed, 54 insertions(+), 1117 deletions(-)
 delete mode 100644 scripts/system/machine-update.pl
 create mode 100644 scripts/time/time_tracker.sh

diff --git a/scripts/core/functions.sh b/scripts/core/functions.sh
index 9ae9e5d6..6d2bbe29 100644
--- a/scripts/core/functions.sh
+++ b/scripts/core/functions.sh
@@ -357,6 +357,8 @@ if [ -z "$skip_all" ]; then
     sed -i -e "s%$pattern%$replacement%g" "$file"
   }
 
+  ##############
+
   function function_sentinel() { return 0; }
   
   if [ ! -z "$SHELL_DEBUG" ]; then echo function definitions end....; fi
diff --git a/scripts/system/machine-update.pl b/scripts/system/machine-update.pl
deleted file mode 100644
index f2090a1a..00000000
--- a/scripts/system/machine-update.pl
+++ /dev/null
@@ -1,1117 +0,0 @@
-#!/usr/bin/perl -w
-# For Emacs: -*- mode:cperl; mode:folding; -*-
-#
-# Get a machine's critical features, And mail/http them to the Linux Counter
-#
-# (c) 1999 - Harald Tveit Alvestrand, the Linux Counter Project
-#     2003 - PetaMem Group (www.petamem.com)
-# License:   GNU Copyleft - see bottom of file.
-# Changelog: see even more bottom of the file
-#
-# As a matter of courtesy, if you change this file on your own,
-# make sure it does NOT mail to the counter!
-#
-use strict;
-use POSIX;
-
-our $VERSION     = '0.32';
-our $CVS_VERSION = '$Revision: 1.8 $ $Date: 2007/01/21 17:22:50 $ $Author: patrick $';
-our $IsInTestHarness;
-use vars qw(%values %oldvalues $errordata $debugdata %files); # data that is sent
-use vars qw($progname %option $mailprogram);
-use vars qw(%is_sys_account %is_user %is_account);
-
-# stuff that controls defaults for passwdscan & accounts subroutines
-my ($UID_MIN, $UID_MAX, $got_defs) = (100, 65533, '');
-
-# Make sure nothing happens, so that the script's routines
-# can be debugged from another file
-return 1 if($IsInTestHarness);
-
-&preparation;
-&options;
-
-&readfile;
-&checkconfig;
-
-if ($option{ask}) {
-  &askquestions;
-}
-
-&writefile;
-&sendfile;
-
-# {{{ preparation
-
-#
-sub preparation {
-  die "No HOME environment variable\n" if (!$ENV{HOME});
-  die "No home diretory\n" if ! -d $ENV{HOME};
-  # Kill some internationalization
-  $ENV{LANG} = 'C';
-  delete $ENV{LC_CTYPE};
-  delete $ENV{LC_NUMERIC};
-  delete $ENV{LC_NAME};
-  delete $ENV{LC_TIME};
-  delete $ENV{LC_MESSAGES};
-  delete $ENV{LC_COLLATE};
-  delete $ENV{LC_MONETARY};
-
-  my $infodir = "$ENV{HOME}/.linuxcounter";
-  if (! -d $infodir) {
-    mkdir($infodir, 0766) || die "Unable to make $infodir\n";
-  }
-  # Keep track of where I am; need it to install crontab entry
-  # progname is a global.
-  $progname = $0;
-  if ($progname !~ /^\//) {
-    my $progdir = `pwd`;
-    chop $progdir;
-    $progname = "$progdir/$progname";
-    $progname =~ s!/./!/!;
-  }
-  chdir($infodir) || die "Unable to change to $infodir\n";
-  my ($sysname, $nodename, $release, $version, $machine ) = POSIX::uname();
-  if (! -f $nodename) {
-    print STDERR "Machine-update $VERSION. Use $0 -l to display license.\n";
-    print STDERR "Creating the infofile for your computer.\n";
-    # Create the infodir
-    open(INFO, ">$nodename");
-    print INFO "uniqueid: ", randomnumber(), "\n";
-    close INFO;
-  }
-
-  srand time % $$;            # do some seed "randomization"
-
-  # Find out what mail program to use !! Terrible kludge !!
-  $mailprogram = "/usr/bin/mail";
-  if (! -x "$mailprogram") {
-    if (-x "/bin/mail") {
-      $mailprogram = "/bin/mail";
-    } else {
-      if (-x "/usr/sbin/sendmail") {
-        $mailprogram = "/usr/sbin/sendmail";
-      } else {
-        if (-x "/usr/lib/sendmail") {
-          $mailprogram = "/usr/lib/sendmail";
-        } else {
-          if (-x "/usr/bin/mutt") {
-            $mailprogram = "/usr/bin/mutt";
-          } else {
-            if (-x "/usr/sbin/exim4") {
-              $mailprogram = "/usr/sbin/exim4";
-            } else {
-              if (-x "/usr/bin/elm") {
-                $mailprogram = "/usr/bin/elm";
-              } else {
-                print "--------------------------------------------------------\n";
-                print "!!!         Cannot find a mail program to use        !!!\n";
-                print "Please copy the output into a new email and send that\n";
-                print "email manually to machine-registration\@linuxcounter.net\n";
-                print "--------------------------------------------------------\n";
-              }
-            }
-          }
-        }
-      }
-    }
-  }
-}
-
-# }}}
-# {{{ options
-
-#
-sub options {
-  my $opt;
-
-  while (defined($ARGV[0]) && $ARGV[0] =~ /^-/) {
-    $opt = shift @ARGV;
-    $opt =~ /c/ && &installcrontab;
-    $opt =~ /d/ && $option{DEBUG}++ && print STDERR "Debug is $option{DEBUG}\n";
-    $opt =~ /h/	&& &help;
-    $opt =~ /i/ && ($option{ask}  = 1);
-    $opt =~ /l/ && &license;
-    $opt =~ /m/ && ($option{mail} = 1);
-    $opt =~ /t/ && ($option{mail} = 0);
-    $opt =~ /u/ && &uninstallcrontab;
-    $opt =~ /v/ && die "\n\t Linux Counter machine-update version $VERSION\n"
-      . "\tCVS version $CVS_VERSION\n";
-    $opt =~ /x/ && ($option{info} = 1);
-  }
-}
-
-# }}}
-
-# {{{ askquestions
-
-#
-sub askquestions {
-  return if ! -t STDIN || ! -t STDOUT;
-  $| = 1;
-  print "Here you can specify some info that the script can't know for itself\n";
-  $values{owner} = askone("Your Linux Counter reg#, if any", $values{owner});
-  $values{key}   = askone("Your machine's counter reg#, if any", $values{key});
-}
-
-# }}}
-# {{{ askone
-#
-sub askone {
-  my $prompt  = shift;
-  my $default = shift;
-
-  print $prompt;
-  if (defined($default)) {
-    print " [$default]";
-  }
-  print ':';
-
-  my $ans = <STDIN>;
-
-  chop $ans;
-  &Debug("Answer was $ans\n");
-  $ans = $default if (!length($ans));
-
-  return $ans;
-}
-# }}}
-
-# {{{ readfile
-
-#
-sub readfile {
-  my ($sysname, $nodename, $release, $version, $machine ) = POSIX::uname();
-  open(INFO, $nodename) || die "Did not find infofile $nodename\n";
-  while (<INFO>) {
-    chop;
-    s/#.*//;
-    if (/^(\S+): *(.+)/) {
-      my $key = $1;
-      my $value = $2;
-      if ($1 !~ /^(owner|key|uniqueid)$/) {
-	next;
-      }
-      &Debug("Read $key: $value\n");
-      $values{$key} = $value;
-    } else {
-      print STDERR "Unparsed info line: $_ - discarded\n";
-    }
-  }
-  close INFO;
-  %oldvalues = %values;
-}
-
-# }}}
-# {{{ writefile
-
-#
-sub writefile {
-  my ($sysname, $nodename, $release, $version, $machine ) = POSIX::uname();
-
-  open(INFO, ">$nodename.new");
-  for my $val (sort keys(%values)) {
-    &Debug("Saving $val: $values{$val}\n");
-    print INFO "$val: $values{$val}\n";
-  }
-  close INFO;
-  rename("$nodename.new", $nodename) || die "Rename failed\n";
-}
-
-# }}}
-# {{{ sendfile
-
-#
-sub sendfile {
-  if ($option{mail}) {
-    open(MAIL, "|$mailprogram machine-registration\@linuxcounter.net")
-      || die "Unable to open $mailprogram\n";
-  } else {
-    warn "--------------------------------------------------------\n";
-    warn "This is what will be sent to the Linux Counter if you\n";
-    warn "run the program with the -m switch. Now, NOTHING IS SENT\n";
-    warn "--------------------------------------------------------\n";
-    open(MAIL, ">&STDOUT");
-  }
-  # note that $ENV{USER} isn't (always) set in a cron job...
-  my $user = (getpwuid($<))[0];
-  $user = "unknown-id-$<" if !$user;
-  print MAIL <<EOF
-From: $user
-To: machine-registration\@linuxcounter.net
-Subject: machine-update for $values{name}
-
-Mail program that sent this email: $mailprogram
-Perl version used to run machine-update: $]
-
-//MACHINE
-EOF
-    ;
-  for my $val (sort keys(%values)) {
-    print MAIL "$val: $values{$val}\n"
-      if length($values{$val}) > 0;
-  }
-  print MAIL "//END\n";
-  # Attach files
-  for my $file (keys(%files)) {
-    print MAIL "//FILE $file\n";
-    print MAIL $files{$file};
-    print MAIL "//EOF\n";
-  }
-
-
-  # Attach possible other info
-  if ($errordata) {
-    print MAIL "----- Problem info gathered during probing -----\n";
-    print MAIL $errordata;
-  }
-  $option{info} && do {
-    print MAIL "----- Debug data for the script maintainer's aid -----\n";
-    print MAIL $debugdata;
-  };
-  close MAIL;
-}
-
-# }}}
-
-# {{{ randomnumber
-#
-sub randomnumber {
-  return int(rand(1_000_000_000));
-}
-# }}}
-
-# {{{ checkconfig
-
-#
-sub checkconfig {
-  my ($sysname, $nodename, $release, $version, $machine ) = POSIX::uname();
-
-  warn "This is not Linux, but $sysname!\n" if($sysname ne 'Linux');
-  $values{method}    = "machine-update version $VERSION";
-  $values{os}        = $sysname;
-  $values{kernel}    = $release;
-  $values{cpu_uname} = $machine;
-  $values{name}      = $nodename;	# First order guess
-
-  # Credit for some of the code below goes to
-  # Denis Havlik: <havlik@ap.univie.ac.at>
-  # Blame is, of course, all mine - HTA -
-  # Note - there are numerous problems with df, including:
-  # - early versions don't support the -l option
-  # - at least some include SAMBA filesystems in the -l option
-  # 1: Snarf a df -T
-  my $dfbin = &xbin("df");
-  $files{"df -T"} = `$dfbin -T -x nfs`;
-
-  $values{accounts} = &accounts;
-  $values{users}    = &active_users;
-
-  my $uptime = &xbin('uptime');
-  if($uptime) {
-    $uptime = `$uptime`;
-    $values{uptime_1} = $uptime; # preserve raw version
-    $values{uptime_1} =~ s/\n.*//;
-  }
-  my $lastprog = xbin('last');
-  if ($lastprog && -r "/var/run/utmp") {
-    $values{uptime_2} = `$lastprog -xf /var/run/utmp runlevel`;
-    $values{uptime_2} =~ s/\n.*$//s;
-  } else {
-    DebugInfo("Can't do last to find uptime");
-  }
-  # Not sure this is a Right Thing...so not saving it for the moment
-  # This section based on a patch from Mark-Jason Dominus <mjd@plover.com>
-  # try to guess mailer based on content of /usr/lib/sendmail link
-  if (-l '/usr/lib/sendmail') {
-    my $realsendmail = readlink('/usr/lib/sendmail');
-    if ($realsendmail eq '../sbin/sendmail') {
-      $realsendmail = '/usr/sbin/sendmail';
-      if (-l $realsendmail) {
-	$realsendmail = readlink($realsendmail);
-      }
-    }
-    if ($realsendmail =~ m{^/var/qmail}) {
-      $values{mailer} = "qmail";
-    } else {
-      &DebugInfo("Found sendmail as a link to $realsendmail\n");
-    }
-  }
-  # Link method did not work. Try to guess based on presence of
-  # config files. (this is more susceptible to the old-junk problem)
-  if (!$values{mailer}) {
-    if ( -d '/var/qmail') {
-      $values{mailer} = 'qmail';
-    } elsif ( -f '/etc/sendmail.cf' || -f '/etc/mail/sendmail.cf') {
-      # TMDG claims recent Fedora Core has it in /etc/mail/sendmail.cf
-      $values{mailer} = 'sendmail';
-    } elsif ( -d '/etc/postfix') {
-      $values{mailer} = 'postfix';
-    }
-  }
-
-  $values{kcoresize} = -s "/proc/kcore" || 0;
-  addonefileforsending("/proc/meminfo");
-  addonefileforsending("/proc/cpuinfo");
-  addonefileforsending("/proc/version");
-  # info on what devices are in use on the system
-  addonefileforsending("/proc/pci");
-  addonefileforsending("/proc/bus/usb/devices");
-  # Both Mandrake and Red Hat use this file....
-  addonefileforsending("/etc/redhat-release");
-}
-
-# }}}
-
-# {{{ accounts
-
-#
-sub accounts {
-  my $s;
-  my $niss;
-  my $ypcatbin;                # will hold path to the ypcat binary (if any)
-
-  open (TMP,"</etc/passwd");
-  $s += &passwdscan;
-  &DebugErr("Found $s accounts total\n");
-  &Debug("Switching to NIS passwords\n");
-
-  $ypcatbin = &xbin('ypcat');  # get path to ypcat binary (empty if none)
-  if($ypcatbin) {              # test whether ypcat was found
-    open TMP, "$ypcatbin passwd 2> /dev/null|"
-      || ($errordata .= "ypcat failed: $!\n");
-    $niss = &passwdscan;
-    $s   += $niss;
-    close TMP;
-    &Debug("Status of ypcat: $?\n");
-    &DebugErr("Found $niss accounts in ypcat passwd\n");
-  }
-
-  &DebugErr('Sysaccounts: ', join(' ', keys(%is_sys_account)), "\n");
-  &DebugErr("Found $s accounts total\n");
-
-  return $s;
-}
-
-# }}}
-# {{{ passwdscan
-
-#
-sub passwdscan {
-  # Code for reading login.defs courtesy of Vassilii Khachaturov
-  # <vassilii@tarunz.org>
-  local (*DEFS);
-  # Try importing UID_MIN and UID_MAX from /etc/login.defs, if possible
-  # else just assume the above defaults for min and max non-system UID
-  if (!$got_defs && open (DEFS, '/etc/login.defs')) {
-    while (<DEFS>) {
-      if (/^\s*(UID_(?:MIN|MAX))\s+(\d+)/) {
-	# elegant, but not compatible with "strict refs":
-	#${ $1 } = $2;
-	if ($1 eq "UID_MIN") {
-	  $UID_MIN = $2;
-	} else {
-	  $UID_MAX = $2;
-	}
-	&Debug("DEFS match: $1 = $2\n");
-      }
-    }
-    close (DEFS);
-    $got_defs = 1;
-  }
-  &Debug("UID_MIN = $UID_MIN, UID_MAX = $UID_MAX\n");
-  # I suppose this is as good as it gets - 
-  #   Usually user accounts have UID > 100 and 
-  #   "system accounts" have UID < 100, but there is no guarantee   
-  # that 
-  #   this will hold for pseudo-users like "postgress" etc.
-  # Also nobody is usually 99 on linux, but -1 on "standard" unices.
-  # RedHat places the dividing line at 500. Others use 400...
-  my @line;
-  my $s = 0;
-
-  while (<TMP>) {
-    @line = split ':';
-    if (!($line[2] eq "")) {
-      if ($line[2] >= $UID_MIN && $line[2] <= $UID_MAX
-        && !($line[0] eq 'nobody')) {
-        $s++;
-        $is_account{$line[0]} = 1;
-      } else {
-        $is_sys_account{$line[0]} = 1;
-      }
-    }
-  }
-
-  return $s;
-}
-
-# }}}
-# {{{ active_users
-
-#
-# This is kind of alpha, but please test it.
-# It calculates the number of "active" users based on the "wtmp" entries
-# unfortunately at least Mandrake 8 and 9 ship with non-world-read wtmp
-# and non-set-uid last, so this does not work any more...
-#
-# RJ: Actually I think the best thing to do is to bury this code and be silent about it.
-#
-sub active_users {
-  my $userslisted;
-
-  for (qw(reboot wtmp runlevel)) {  # This sysaccounts shouldn't be counted. Who else?
-    $is_sys_account{$_} = 1;
-  }
-  open( TMP, "/usr/bin/last 2>&1|");
-  while (<TMP>) {
-    chop;
-    if (m!/var/log/wtmp: Permission denied!) { # RJ: ***Boom*** on every non-EN system
-      &ErrorInfo("/usr/bin/last failed because /var/log/wtmp isn't readable\n");
-      last;
-    }
-    last if(!$_);                            # RJ: quick hack to safe bad code from harm
-    my @tmp  = split;
-    my $name = $tmp[0];
-    if ($is_sys_account{$name}) {
-      # do nothing
-    } elsif (defined $is_account{$name}) {
-      $is_user{$name} = 1;
-    } elsif (/^\s*$/) {                      # blank line - do nothing
-    } elsif ($#tmp == 9) {                   # OK line, but unknown user
-      $option{DEBUG} && do {
-	if (!$userslisted) {
-	  print STDERR 'Know users are: ',
-	    join(' ', keys(%is_account)), "\n";
-	  $userslisted = 1;
-	}
-	print STDERR "Unknown user: $name\n";
-      }
-    } else {
-      &DebugErr("Strange line: $_\n");
-    }
-  }
-  close TMP;
-  my $i = 0;
-  for (sort keys %is_user) {
-    $option{DEBUG} && printf "Active user %3d: %s\n", ++$i, $_;
-  }
-  &Debug("$i active users found.\n");
-
-  return $i;
-}
-
-# }}}
-
-# {{{ installcrontab
-
-#
-sub installcrontab {
-  my $hour = int(rand(24));
-  my $min  = int(rand(60));
-  my $day  = int(rand(7));	# Weekday. This version runs once a week.
-  my $cron = "";
-
-  warn "Installing start of script into your crontab\n";
-  if (open(CRON, "crontab -l |")) {
-    &Debug("Checking crontab for machine-update\n");
-    &Debug("Want to install as $progname\n");
-    while (<CRON>) {
-      if (/machine-update/) {
-	if (/ $progname -m/) {
-	  die "Crontab entry already installed: $_\n";
-	} else {
-	  die "Another entry with machine-update: $_\n";
-	}
-      }
-      $cron .= $_;
-    }
-    close CRON;
-    &Debug("Result from crontab -l: ", $? / 256, "\n");
-    if ($? == 0) {
-      &Debug("Crontab successfully read\n");
-    } elsif ($? == 256) {
-      warn "You don't seem to have a crontab. I will create one.\n";
-    } else {
-      die "Failed to read your crontab. Please report this as a bug: $?\n";
-    }
-  } else {
-    &Debug("Result from crontab open(): $?\n");
-    die "Unable to execute crontab command. Please check your system\n";
-  }
-  open(CRON, "|crontab -");
-  print CRON $cron;
-  print CRON "$min $hour * * $day $progname -m\n";
-  close CRON;
-  &Debug("Result from crontab: $?\n");
-  if ($?) {
-    die(<<EoF);
-Installing new crontab failed.
-YOUR CRONTAB MAY BE DAMAGED - use crontab -l to check it.
-Here's its former content (if any):
-
-$cron
-
-EoF
-  }
-  print "Crontab entry successfully installed.\nWill run on day $day of every week, at $hour:$min\n";
-
-  exit 0;
-}
-
-# }}}
-# {{{ uninstallcrontab
-
-#
-sub uninstallcrontab {
-  my $found = 0;
-  my $cron;
-
-  print STDERR "Removing $progname from your crontab\n";
-  open(CRON, "crontab -l |");
-  &Debug("Checking crontab for machine-update\n");
-  &Debug("Want to uninstall as $progname\n");
-  while (<CRON>) {
-    if (/^#/ && $. <= 3) {	# initial comment
-      &Debug("Skipping comment: $_");
-      next;
-    }
-    if (/machine-update/) {
-      if (/ $progname -m/) {
-	print STDERR "Crontab entry found and removed\n";
-	$found = 1;
-	next;			# skip stuff at end....
-      } else {
-	die "Another entry with machine-update: $_\nUninstall manually?\n";
-      }
-    }
-    $cron .= $_;
-  }
-  close CRON;
-  &Debug("Result from crontab -l: $?\n");
-  if ($?) {
-    die "Failed to read your crontab. You may not have one?\n";
-  }
-  if ($found) {
-    open(CRON, "|crontab -");
-    print CRON $cron;
-    close CRON;
-    &Debug("Result from crontab: $?\n");
-    if ($?) {
-      die(<<EoF);
-Installing new crontab failed.
-YOUR CRONTAB MAY BE DAMAGED - use crontab -l to check it.
-Here's its former content (if any):
-
-$cron
-
-EoF
-    }
-  } else {
-    print STDERR "No instance of $progname found in your crontab\n";
-  }
-
-  exit 0;
-}
-
-# }}}
-
-# {{{ xbin                       execute a linux binary
-
-#
-# This sub is to execute a linux binary robustly. i.e. testing
-# whether it is present, where it is present, whether it is executable
-#
-sub xbin {
-  my $bin = shift;             # get name of binary to execute
-
-  $bin = `which $bin 2>/dev/null`;         # determine binarys full path
-  chomp $bin;
-  return $bin if(-x $bin);     # if there and executable: all is well - return it
-
-  if(!$bin) {                  # if not there
-    &Debug("No $bin found\n"); # state so
-  } else {                     # there but not executable
-    &Debug("$bin found, but not executable\n");
-  }
-
-  return '';                   # so return an empty string (binary will not exec)
-}
-
-# }}}
-# {{{ getval_from_file           get value from system file @ row,col
-
-#
-sub getval_from_file {
-  my $file = shift;
-  my $row  = shift;
-  my $col  = shift;
-  my @file;
-  my @cols;
-
-  if (!(-r $file)) {
-    &DebugErr("File $file not readable\n");
-    return '';
-  }
-  sysopen(FH,$file, O_RDONLY);
-  @file = <FH>;                     # read whole file to array
-  close FH;
-
-  @cols = split /\s+/, $file[$row]; # get the right row
-
-  return $cols[$col];               # return the right column
-}
-
-# }}}
-
-sub addonefileforsending {
-  my $file = shift;
-  my @file;
-
-  if (!(-r $file)) {
-    &DebugErr("File $file not readable\n");
-    return '';
-  }
-  sysopen(FH,$file, O_RDONLY);
-  @file = <FH>;                     # read whole file to array
-  close FH;
-  $files{$file} = join('', @file);
-
-}
-
-# {{{ Debug                      print debug information if flag is set
-
-#
-sub Debug {
-  $option{DEBUG} && print @_;
-}
-
-# }}}
-# {{{ DebugErr                   print debug on STDERR if flag is set
-
-#
-sub DebugErr {
-  $option{DEBUG} && print STDERR @_;
-}
-
-# }}}
-# {{{ ErrorInfo
-sub ErrorInfo {
-  $errordata .= join('', @_);
-}
-# }}}
-# {{{ DebugInfo
-
-sub DebugInfo {
-  $option{info} && ($debugdata .= join('', @_));
-}
-
-# }}}
-
-# {{{ help                       print help & exit
-
-#
-sub help {
-  my $host = `uname -n`;
-
-  print <<EoF;
-machine-update version $VERSION
-Send machine information to the Linux Counter
-
-USE: machine-update [-i] [-(t|d|l|m|v|x|c|u|h)]
-
-SWITCHES:
- -i = interactive
- -t = test (do not send e-mail, just print it ot STDOUT - default)
- -d = debug (test, and print additional debug informations)
- -l = display license
- -m = mail results to linux-counter
- -v = print version and exit
- -x = send extra info to server (Debug)
- -c = install crontab entry
- -u = uninstall crontab entry
- -h = print usage information and exit
-If called with the "-i" option, will ask some questions and store the
-answers in $ENV{HOME}/.linuxcounter/$host
-
-EoF
-
-exit 0;
-}
-
-# }}}
-# {{{ license                    print license & exit
-
-#
-sub license {
-  print <<EoF;
-
-    Linux Counter Machine Update version $VERSION
-
-    Copyright (C) 1999-2005 Harald Tveit Alvestrand
-                  2003 PetaMem Group (www.petamem.com)
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License below for more details.
-
-
-		    GNU GENERAL PUBLIC LICENSE
-		       Version 2, June 1991
-
- Copyright (C) 1989, 1991 Free Software Foundation, Inc.
-                          675 Mass Ave, Cambridge, MA 02139, USA
- Everyone is permitted to copy and distribute verbatim copies
- of this license document, but changing it is not allowed.
-
-			    Preamble
-
-  The licenses for most software are designed to take away your
-freedom to share and change it.  By contrast, the GNU General Public
-License is intended to guarantee your freedom to share and change free
-software--to make sure the software is free for all its users.  This
-General Public License applies to most of the Free Software
-Foundation's software and to any other program whose authors commit to
-using it.  (Some other Free Software Foundation software is covered by
-the GNU Library General Public License instead.)  You can apply it to
-your programs, too.
-
-  When we speak of free software, we are referring to freedom, not
-price.  Our General Public Licenses are designed to make sure that you
-have the freedom to distribute copies of free software (and charge for
-this service if you wish), that you receive source code or can get it
-if you want it, that you can change the software or use pieces of it
-in new free programs; and that you know you can do these things.
-
-  To protect your rights, we need to make restrictions that forbid
-anyone to deny you these rights or to ask you to surrender the rights.
-These restrictions translate to certain responsibilities for you if you
-distribute copies of the software, or if you modify it.
-
-  For example, if you distribute copies of such a program, whether
-gratis or for a fee, you must give the recipients all the rights that
-you have.  You must make sure that they, too, receive or can get the
-source code.  And you must show them these terms so they know their
-rights.
-
-  We protect your rights with two steps: (1) copyright the software, and
-(2) offer you this license which gives you legal permission to copy,
-distribute and/or modify the software.
-
-  Also, for each author's protection and ours, we want to make certain
-that everyone understands that there is no warranty for this free
-software.  If the software is modified by someone else and passed on, we
-want its recipients to know that what they have is not the original, so
-that any problems introduced by others will not reflect on the original
-authors' reputations.
-
-  Finally, any free program is threatened constantly by software
-patents.  We wish to avoid the danger that redistributors of a free
-program will individually obtain patent licenses, in effect making the
-program proprietary.  To prevent this, we have made it clear that any
-patent must be licensed for everyone's free use or not licensed at all.
-
-  The precise terms and conditions for copying, distribution and
-modification follow.
-
-		    GNU GENERAL PUBLIC LICENSE
-   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
-
-  0. This License applies to any program or other work which contains
-a notice placed by the copyright holder saying it may be distributed
-under the terms of this General Public License.  The "Program", below,
-refers to any such program or work, and a "work based on the Program"
-means either the Program or any derivative work under copyright law:
-that is to say, a work containing the Program or a portion of it,
-either verbatim or with modifications and/or translated into another
-language.  (Hereinafter, translation is included without limitation in
-the term "modification".)  Each licensee is addressed as "you".
-
-Activities other than copying, distribution and modification are not
-covered by this License; they are outside its scope.  The act of
-running the Program is not restricted, and the output from the Program
-is covered only if its contents constitute a work based on the
-Program (independent of having been made by running the Program).
-Whether that is true depends on what the Program does.
-
-  1. You may copy and distribute verbatim copies of the Program's
-source code as you receive it, in any medium, provided that you
-conspicuously and appropriately publish on each copy an appropriate
-copyright notice and disclaimer of warranty; keep intact all the
-notices that refer to this License and to the absence of any warranty;
-and give any other recipients of the Program a copy of this License
-along with the Program.
-
-You may charge a fee for the physical act of transferring a copy, and
-you may at your option offer warranty protection in exchange for a fee.
-
-  2. You may modify your copy or copies of the Program or any portion
-of it, thus forming a work based on the Program, and copy and
-distribute such modifications or work under the terms of Section 1
-above, provided that you also meet all of these conditions:
-
-    a) You must cause the modified files to carry prominent notices
-    stating that you changed the files and the date of any change.
-
-    b) You must cause any work that you distribute or publish, that in
-    whole or in part contains or is derived from the Program or any
-    part thereof, to be licensed as a whole at no charge to all third
-    parties under the terms of this License.
-
-    c) If the modified program normally reads commands interactively
-    when run, you must cause it, when started running for such
-    interactive use in the most ordinary way, to print or display an
-    announcement including an appropriate copyright notice and a
-    notice that there is no warranty (or else, saying that you provide
-    a warranty) and that users may redistribute the program under
-    these conditions, and telling the user how to view a copy of this
-    License.  (Exception: if the Program itself is interactive but
-    does not normally print such an announcement, your work based on
-    the Program is not required to print an announcement.)
-
-These requirements apply to the modified work as a whole.  If
-identifiable sections of that work are not derived from the Program,
-and can be reasonably considered independent and separate works in
-themselves, then this License, and its terms, do not apply to those
-sections when you distribute them as separate works.  But when you
-distribute the same sections as part of a whole which is a work based
-on the Program, the distribution of the whole must be on the terms of
-this License, whose permissions for other licensees extend to the
-entire whole, and thus to each and every part regardless of who wrote it.
-
-Thus, it is not the intent of this section to claim rights or contest
-your rights to work written entirely by you; rather, the intent is to
-exercise the right to control the distribution of derivative or
-collective works based on the Program.
-
-In addition, mere aggregation of another work not based on the Program
-with the Program (or with a work based on the Program) on a volume of
-a storage or distribution medium does not bring the other work under
-the scope of this License.
-
-  3. You may copy and distribute the Program (or a work based on it,
-under Section 2) in object code or executable form under the terms of
-Sections 1 and 2 above provided that you also do one of the following:
-
-    a) Accompany it with the complete corresponding machine-readable
-    source code, which must be distributed under the terms of Sections
-    1 and 2 above on a medium customarily used for software interchange; or,
-
-    b) Accompany it with a written offer, valid for at least three
-    years, to give any third party, for a charge no more than your
-    cost of physically performing source distribution, a complete
-    machine-readable copy of the corresponding source code, to be
-    distributed under the terms of Sections 1 and 2 above on a medium
-    customarily used for software interchange; or,
-
-    c) Accompany it with the information you received as to the offer
-    to distribute corresponding source code.  (This alternative is
-    allowed only for noncommercial distribution and only if you
-    received the program in object code or executable form with such
-    an offer, in accord with Subsection b above.)
-
-The source code for a work means the preferred form of the work for
-making modifications to it.  For an executable work, complete source
-code means all the source code for all modules it contains, plus any
-associated interface definition files, plus the scripts used to
-control compilation and installation of the executable.  However, as a
-special exception, the source code distributed need not include
-anything that is normally distributed (in either source or binary
-form) with the major components (compiler, kernel, and so on) of the
-operating system on which the executable runs, unless that component
-itself accompanies the executable.
-
-If distribution of executable or object code is made by offering
-access to copy from a designated place, then offering equivalent
-access to copy the source code from the same place counts as
-distribution of the source code, even though third parties are not
-compelled to copy the source along with the object code.
-
-  4. You may not copy, modify, sublicense, or distribute the Program
-except as expressly provided under this License.  Any attempt
-otherwise to copy, modify, sublicense or distribute the Program is
-void, and will automatically terminate your rights under this License.
-However, parties who have received copies, or rights, from you under
-this License will not have their licenses terminated so long as such
-parties remain in full compliance.
-
-  5. You are not required to accept this License, since you have not
-signed it.  However, nothing else grants you permission to modify or
-distribute the Program or its derivative works.  These actions are
-prohibited by law if you do not accept this License.  Therefore, by
-modifying or distributing the Program (or any work based on the
-Program), you indicate your acceptance of this License to do so, and
-all its terms and conditions for copying, distributing or modifying
-the Program or works based on it.
-
-  6. Each time you redistribute the Program (or any work based on the
-Program), the recipient automatically receives a license from the
-original licensor to copy, distribute or modify the Program subject to
-these terms and conditions.  You may not impose any further
-restrictions on the recipients' exercise of the rights granted herein.
-You are not responsible for enforcing compliance by third parties to
-this License.
-
-  7. If, as a consequence of a court judgment or allegation of patent
-infringement or for any other reason (not limited to patent issues),
-conditions are imposed on you (whether by court order, agreement or
-otherwise) that contradict the conditions of this License, they do not
-excuse you from the conditions of this License.  If you cannot
-distribute so as to satisfy simultaneously your obligations under this
-License and any other pertinent obligations, then as a consequence you
-may not distribute the Program at all.  For example, if a patent
-license would not permit royalty-free redistribution of the Program by
-all those who receive copies directly or indirectly through you, then
-the only way you could satisfy both it and this License would be to
-refrain entirely from distribution of the Program.
-
-If any portion of this section is held invalid or unenforceable under
-any particular circumstance, the balance of the section is intended to
-apply and the section as a whole is intended to apply in other
-circumstances.
-
-It is not the purpose of this section to induce you to infringe any
-patents or other property right claims or to contest validity of any
-such claims; this section has the sole purpose of protecting the
-integrity of the free software distribution system, which is
-implemented by public license practices.  Many people have made
-generous contributions to the wide range of software distributed
-through that system in reliance on consistent application of that
-system; it is up to the author/donor to decide if he or she is willing
-to distribute software through any other system and a licensee cannot
-impose that choice.
-
-This section is intended to make thoroughly clear what is believed to
-be a consequence of the rest of this License.
-
-  8. If the distribution and/or use of the Program is restricted in
-certain countries either by patents or by copyrighted interfaces, the
-original copyright holder who places the Program under this License
-may add an explicit geographical distribution limitation excluding
-those countries, so that distribution is permitted only in or among
-countries not thus excluded.  In such case, this License incorporates
-the limitation as if written in the body of this License.
-
-  9. The Free Software Foundation may publish revised and/or new versions
-of the General Public License from time to time.  Such new versions will
-be similar in spirit to the present version, but may differ in detail to
-address new problems or concerns.
-
-Each version is given a distinguishing version number.  If the Program
-specifies a version number of this License which applies to it and "any
-later version", you have the option of following the terms and conditions
-either of that version or of any later version published by the Free
-Software Foundation.  If the Program does not specify a version number of
-this License, you may choose any version ever published by the Free Software
-Foundation.
-
-  10. If you wish to incorporate parts of the Program into other free
-programs whose distribution conditions are different, write to the author
-to ask for permission.  For software which is copyrighted by the Free
-Software Foundation, write to the Free Software Foundation; we sometimes
-make exceptions for this.  Our decision will be guided by the two goals
-of preserving the free status of all derivatives of our free software and
-of promoting the sharing and reuse of software generally.
-
-			    NO WARRANTY
-
-  11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
-FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN
-OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
-PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
-OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
-MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  THE ENTIRE RISK AS
-TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.  SHOULD THE
-PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
-REPAIR OR CORRECTION.
-
-  12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
-WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
-REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
-INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
-OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
-TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
-YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
-PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
-POSSIBILITY OF SUCH DAMAGES.
-
-		     END OF TERMS AND CONDITIONS
-
-EoF
-
-  exit 0;
-}
-
-# }}}
-
-# Changelog for 0.2
-#  - indentation and folding marks
-#  - made script work with -w and use strict
-#  - removed some localization traps
-#  - marked some BUGS - but they`re still there (mostly localization)
-#  - more robust binary calls
-#  - getval_from_file data acquisition method
-#  - fixed df (shmfs) - but only temporarily (quick hack)
-#  - various code optimizations & cleanup (removed unneded vars)
-#  - Memory size detection now robst and >960MB capable
-#  - slightly better randomness
-#
-
-# Changelog 0.21
-# - added attaching of files
-# - added fetching of uptime_1 and uptime_2
-#
-# Changelog 0.22
-# - removed "manual" copying of entries
-# - added suppressing error messages from "xbin" calling "which"
-# - suppressed NFS from "df -T" listing
-#
-# Changelog 0.23
-# - added sending /proc/pci
-# - removed client-side parsing of DF output and uptime
-#
-# Changelog 0.24
-# - added sending /proc/version (inspired by klive)
-# - changed fetching of old data from "all" to "needed"
-# - removed CPU-parsing code
-# - fixed warning (harmless) from crontab creation
-# - added sending /proc/bus/usb/devices
-#
-# Changelog 0.25
-# - added sending size of /proc/kcore
-# - removed computation of memory client-side
-#
-# Changelog 0.26
-# - adding cron entry no longer removes comments from crontab.
-#   Crontab is not ours, so hands off.
-#
-# Changelog 0.27
-# - When /proc/kcore does not exist on a system, its size is now zero
-#
-# Changelog 0.28
-# - Added a terrible way to find out what email program can be used to send out the mail
-#
-# Changelog 0.29
-# - Extended the hardcoded list of programs that can be used to send the
-#   machine-update email
-#
-# Changelog 0.30  
-# - The script now sends us the version of perl used to run the script
-#   We need this to solve some problems due to changes in between perl
-#   versions
-#
-# Changelog 0.31  
-# - The script now sends the email to machine-registration@linuxcounter.net
-#   instead of the old counter machine machine-registration@counter.li.org
-#
-# Changelog 0.32
-# - If no mail program was found, the script will not stop anymore. It prints
-#   the output anyways and you can send this manually to machine-registration@counter.li.org
-#
-#vim:ts=8:sw=4:sts=4
diff --git a/scripts/time/time_tracker.sh b/scripts/time/time_tracker.sh
new file mode 100644
index 00000000..afe5993c
--- /dev/null
+++ b/scripts/time/time_tracker.sh
@@ -0,0 +1,52 @@
+
+# some helpful functions for counting a duration.
+
+#hmmm: should take a variable name for the start tracker and end tracker.
+
+function start_time_tracking()
+{
+  local varname="$1"; shift
+  if [ -z "$varname" ]; then echo must pass variable name to start_time_tracking; return 1; fi
+  local startvar="${varname}_START"
+  eval $startvar="$(date +"%s")"
+}
+
+function end_time_tracking()
+{
+  local varname="$1"; shift
+  if [ -z "$varname" ]; then echo must pass variable name to end_time_tracking; return 1; fi
+  local endvar="${varname}_END"
+  eval $endvar="$(date +"%s")"
+}
+
+function show_tracked_duration()
+{
+  varname="$1"; shift
+  if [ -z "$varname" ]; then echo must pass variable name to end_time_tracking; return 1; fi
+  # calculate the time taken.
+  local startvar="${varname}_START"
+  local endvar="${varname}_END"
+  duration="$((${!endvar} - ${!startvar}))"
+  # separate it into hours and minutes.
+  minutes="$(($duration / 60))"
+  hours="$(($duration / 60))"
+  # subtract the hours from the minutes sum for modulo.
+  minutes="$(($minutes - $hours * 60))"
+  # fashion conceit, add zeroes.
+  if (($minutes < 10)); then minutes="0$minutes"; fi
+  if (($hours < 10)); then hours="0$hours"; fi
+  echo "Time taken for ${varname}: ${hours}:${minutes} hh:mm (a total of $duration seconds)"
+}
+
+echo testing time tracking...
+start_time_tracking crungle
+
+sleep $(($RANDOM / 1000))
+sleep 2
+
+end_time_tracking crungle
+
+echo ...done testing time tracking.
+
+show_tracked_duration crungle
+
-- 
2.34.1