NOTE : Korn shell /bin/ksh is got by installing pdksh*.rpm from Linux contrib cdrom
Save this file as text file and chmod a+rx on it.
#!/bin/ksh # CVS program sdif # Program to see difference of the working file with CVS copy # Every filename is composed of 3 parts - Home directory, sub-directory # and the filename. The full-path is $HOME/$subdir/$fname # And in CVS the same directory structure is maintained (by # variable $subdir) therefore in cvs we will have $CVSROOT/$subdir/$fname # In this program these 4 variables $HOME, $CVSROOT, $subdir and $fname # play an important role. For example, sample values can be like # HOME=/home/aldev, subdir=myproject/src CVSROOT=/home/cvsroot # and fname=foo.cpp # Caution: Put double-quotes to protect the variables having # spaces, like "$HOME/$subdir" if subdir is 'some foo.cpp' cmdname=`basename $0` Usage() { print "\nUsage: $cmdname <filename> " print "$cmdname -r<rev1> -r<rev2> <filename> \n" exit } homedir=` echo $HOME | cut -f1 -d' ' ` if [ "$homedir" = "" ]; then print "\nError: \$HOME is not set!!\n" exit fi FLAG1="" FLAG2="" OARG1="" OARG2="" # Command getopt will not supported in next major release. # Use getopts instead. while getopts r:r: ii do case $ii in r) if [ "$FLAG1" = "" ]; then FLAG1=$ii; OARG1="$OPTARG" else FLAG2=$ii; OARG2="$OPTARG" fi ;; ?) Usage; exit 2;; esac done shift ` expr $OPTIND - 1 ` if [ "$FLAG2" = "" ]; then FLAG2=r OARG2=HEAD fi cur_dir=`pwd` #echo $cur_dir len=${#homedir} len=$(($len + 2)) #echo $len subdir=` echo $cur_dir | cut -b $len-2000 ` #echo "subdir is : " $subdir tmpaa=`dirname $1` if [ "$tmpaa" = "." ]; then fname="$1" if [ "$subdir" = "" ]; then subdir=$tmpaa fi else fname=`basename $1` if [ "$subdir" = "" ]; then subdir=$tmpaa else subdir="$subdir/$tmpaa" fi fi #echo "subdir is : " $subdir #echo "fname is : " $fname # CVS directory in your local directory is required for all commands.. if [ ! -d "$homedir/$subdir/CVS" ]; then tmpaa=` (cd "$CVSROOT/$subdir"; find * -prune -type f -print | head -1 ) ` tmpbb=`basename $tmpaa | cut -d',' -f1 ` if [ "$tmpaa" = "" -o ! -f "$CVSROOT/$subdir/$tmpbb,v" ]; then print "\nThe directory $homedir/$subdir/CVS does not exist" print "You must do a sget on `basename $subdir` directory. Give -" print " cd $homedir/`dirname $subdir` " print " sget `basename $subdir` " exit else # Now try to create CVS in local dir by sget ( cd "$homedir" if [ "$subdir" = "." ]; then # don't use dot, will mess up cvs cvs -r checkout -A $tmpbb else cvs -r checkout -A "$subdir/$tmpbb" fi ) fi fi # Operate inside sub-shell ( cd $homedir if [ "$FLAG1" = "" ]; then cvs diff -r HEAD "$homedir/$subdir/$fname" | less else cvs diff -$FLAG1 $OARG1 -$FLAG2 $OARG2 "$homedir/$subdir/$fname" | less fi )