cleaning and moving a lot of files.

[feisty_meow.git] / scripts / users / byemessage.sh

diff --git a/scripts/users/byemessage.sh b/scripts/users/byemessage.sh
new file mode 100644 (file)
index 0000000..8f7d9e9
--- /dev/null
+++ b/scripts/users/byemessage.sh
@@ -0,0 +1,41 @@
+#!/bin/bash
+# byemessage prints out a nechung message as part of logging out.
+# the first parameter is the file or device to send the message to.
+# if it is blank, then standard output is used.
+
+# figure out where they want to show the message, or pick a default.
+TARGET_CONSOLE=$1
+if [ -z "$TARGET_CONSOLE" ]; then
+  TARGET_CONSOLE=/dev/console
+fi
+
+# FORTUNE_TO_SHOW is a massaged form of a fortune cookie output.
+export FORTUNE_TO_SHOW="$(mktemp "$TMP/zz_nechung.XXXXXX")"
+
+# see if we can send out a screen blank character.
+echo -e '\0xc' >$FORTUNE_TO_SHOW
+#####echo >>$FORTUNE_TO_SHOW  # first blank line in the file.
+# add lots of blank lines.
+for ((i=0; i<100; i++)); do echo >>$FORTUNE_TO_SHOW; done
+# drop in a fortune cookie.
+$BINDIR/nechung >>$FORTUNE_TO_SHOW
+# a couple extra blank lines.
+for i in 1 2 3; do echo >>$FORTUNE_TO_SHOW; done
+# and a reprinting of a login menu, since that's actually where we're
+# intended to leave the machine at.
+if [ -f /etc/issue.net ]; then
+  cat /etc/issue.net >>$FORTUNE_TO_SHOW
+elif [ -f /etc/issue ]; then
+  cat /etc/issue >>$FORTUNE_TO_SHOW
+fi
+echo -ne "$(hostname) login: " >>$FORTUNE_TO_SHOW
+
+# clear the screen, if we can.
+clear_console
+
+# we have to do extra processing to send the file out to the console.
+tr '\n' '\a' <$FORTUNE_TO_SHOW | sed -r -e 's/\a/\r\n/g' >$TARGET_CONSOLE
+
+# clean up.
+/bin/rm $FORTUNE_TO_SHOW
+