finally wrote a semi-general extractor script. does one archive at a time,

and allows specification of a folder to put unzipped / untarred file into.

diff --git a/scripts/archival/unpack.sh b/scripts/archival/unpack.sh
new file mode 100644 (file)
index 0000000..38629ec
--- /dev/null
+++ b/scripts/archival/unpack.sh
@@ -0,0 +1,72 @@
+#!/bin/bash
+
+##############
+# Name   : unpack
+# Author : Chris Koeritz
+# Rights : Copyright (C) 2012-$now by Feisty Meow Concerns, Ltd.
+##############
+# This script is free software; you can modify/redistribute it under the terms
+# of the GNU General Public License. [ http://www.gnu.org/licenses/gpl.html ]
+# Feel free to send updates to: [ fred@gruntose.com ]
+##############
+#
+# An arbitrary format archive unpacker, although really we are mainly supporting
+# tar and zip currently, including compressed formats.
+
+unpack_file="$1"; shift
+if [ -z "$unpack_file" ]; then
+  echo "This script takes one archive name (in .tar.gz, .zip, etc. formats) and"
+  echo "unpacks the archive with the appropriate tool."
+  exit 1
+fi
+if [ ! -f "$unpack_file" ]; then
+  echo "The file specified for unpacking cannot be located: $unpack_file"
+  exit 1
+fi
+unpack_dir="$1"; shift
+if [ -z "$unpack_dir" ]; then
+  unpack_dir=$(echo unpacked_$(basename $unpack_file) | sed -e 's/^\([^\.]*\)\..*/\1/')
+fi
+
+if [ ! -d "$unpack_dir" ]; then
+  mkdir "$unpack_dir"
+  if [ $? -ne 0 ]; then
+    echo "Could not create the unpacking directory: $unpack_dir"
+    exit 1
+  fi
+fi
+
+# save where we started out.
+ORIGINATING_FOLDER="$( \cd "$(\dirname "$0")" && \pwd )"
+
+pushd "$unpack_dir" &>/dev/null
+
+if [ ! -f "$unpack_file" ]; then
+  # we're assuming we left it behind in our previous directory.
+  unpack_file="$ORIGINATING_FOLDER/$unpack_file"
+  if [ ! -f "$unpack_file" ]; then
+    echo "Could not find file to unpack after shifting directories.  Sorry."
+    echo "Tried to locate it as: $unpack_file"
+    exit 1
+  fi
+fi
+
+if [[ $unpack_file =~ .*\.tar\.gz \
+    || $unpack_file =~ .*\.tar\.bz2 \
+    || $unpack_file =~ .*\.tgz ]]; then
+  tar -xf $unpack_file
+elif [[ $unpack_file =~ .*\.zip ]]; then
+  unzip $unpack_file
+fi
+save_err=$?
+
+if [ $save_err -ne 0 ]; then
+  echo "There was a failure reported while unpacking: $unpack_file"
+  echo "into the directory: $unpack_dir"
+  popd &>/dev/null
+  exit 1
+else
+  echo "Unpacked file $(basename $unpack_file) into folder: $unpack_dir"
+fi
+
+