:
##########################################################################
# Title      :	changedfiles - show changed file names
# Author     :	Heiner Steven <heiner.steven@odn.de>
# Date       :	1995-02-06
# Requires   :	xargs
# Category   :	File Utilities
# SCCS-Id.   :	@(#) changedfiles	1.2 04/02/18
##########################################################################
# Description
#
##########################################################################

PN=`basename "$0"`			# program name
VER='1.2'

: ${POSTMASTER:=${USER:-$LOGNAME}}
: ${HOSTNAME:=`uname -n`}

Dirs="/ /usr"				# Searched directories
: ${ChangeList:=/var/adm/changedfiles}	# Used with find -newer
Tmp=${TMPDIR:=/tmp}/cf$$
Tmp2=${TMPDIR:=/tmp}/cf$$1

# Determine mail program knowing "-s" argument
Mail=mail
[ -x /bin/mailx ] && Mail=mailx

Usage () {
    echo "$PN - show changed files since last invocation, $VER (stv '95)
usage: $PN [directory ...]

Compares all files with a file list, and reports differences.
Searched directories:	$Dirs
Changed files list:	ChangeList=$ChangeList

The output is mailed to user POSTMASTER=$POSTMASTER" >&2
    exit 1
}

Msg () {
    for i
    do echo "$PN: $i" >&2
    done
}

Fatal () { Msg "$@"; exit 1; }

while [ $# -gt 0 ]
do
    case "$1" in
	--)	shift; break;;
	-h)	Usage;;
	-*)	Usage;;
	*)	break;;			# First file name
    esac
    shift
done

[ $# -lt 1 ] && set -- $Dirs

[ -f "$ChangeList" ] || { touch "$ChangeList" || exit 1; }

# Convert directory names to absulute path names
Dirs=
for Dir
do
    [ -d "$Dir" ] && Dirs="$Dirs `cd $Dir; pwd`"
done
set -- $Dirs

# Remove temporary file after signal or exit
trap "rm -f $Tmp $Tmp2 > /dev/null 2>&1" 0
trap "exit 2" 1 2 3 15

find "$@" -xdev -newer "$ChangeList" -print | sort -u > $Tmp

if [ -s "$ChangeList" ]
then
    comm -23 $Tmp "$ChangeList" | grep -v $Tmp > $Tmp2
fi
mv $Tmp "$ChangeList"

if [ -s $Tmp2 ]
then
    xargs ls -lgad < $Tmp2 > $Tmp
    cat - $Tmp <<! | $Mail -s "changed files on $HOSTNAME" $POSTMASTER
*** Output from program $0

Changed files on $HOSTNAME since `ls -l "$ChangeList" | awk '{print $5, $6, $7}'`:

!
fi

touch "$ChangeList"
exit 0