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 sget # Program to check out the file from CVS read-only # 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 [-r revision_number/symbolic_tag_name] <file/directory name> " print "The options -r are optional " print "For example - " print " $cmdname -r 1.1 foo.cpp" print " $cmdname foo.cpp " print " $cmdname some_directory " print "Extract by symbolic revision tag like - " print " $cmdname -r REVISION_1 some_directory " print " " exit } # Command getopt will not supported in next major release. # Use getopts instead. while getopts r: ii do case $ii in r) FLAG1=$ii; OARG1="$OPTARG";; ?) Usage; exit 2;; esac done shift ` expr $OPTIND - 1 ` #echo FLAG1 = $FLAG1 , OARG1 = $OARG1 if [ $# -lt 1 ]; then Usage fi bkextn=sget_bak homedir=` echo $HOME | cut -f1 -d' ' ` if [ "$homedir" = "" ]; then print "\nError: \$HOME is not set!!\n" exit 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 : " $fname # Check if file already exists.... if [ -f "$HOME/$subdir/$fname" ]; then tmpaa="$HOME/$subdir/$fname" user_perms=" " group_perms=" " other_perms=" " user_perms=`ls -l $tmpaa | awk '{print $tmpaa }' | cut -b3-3 ` group_perms=`ls -l $tmpaa | awk '{print $tmpaa }' | cut -b6-6 ` other_perms=`ls -l $tmpaa | awk '{print $tmpaa }' | cut -b9-9 ` if [ "$user_perms" = "w" -o "$group_perms" = "w" \ -o "$other_perms" = "w" ]; then print "\nError: The file is writable. Aborting $cmdname ......" print " You should either backup, scommit or delete the file and" print " try $cmdname again\n" exit fi fi # Move the file mkdir -p "$HOME/$subdir" touch "$HOME/$subdir/$fname" 2>/dev/null \mv -f "$HOME/$subdir/$fname" "$HOME/$subdir/$fname.$bkextn" # Create subshell ( cd $homedir # Use -A option to clear all sticky flags if [ "$FLAG1" = "" ]; then if [ "$subdir" = "." ]; then # don't use dot, will mess up cvs cvs -r checkout -A $fname else cvs -r checkout -A "$subdir/$fname" fi else if [ "$subdir" = "." ]; then # don't use dot, will mess up cvs cvs -r checkout -A -$FLAG1 $OARG1 $fname else cvs -r checkout -A -$FLAG1 $OARG1 "$subdir/$fname" fi fi ) #pwd if [ -f "$HOME/$subdir/$fname" ]; then print "\nREAD-ONLY copy of the file $subdir/$fname obtained." print "Done $cmdname" #print "\nTip (Usage): $cmdname <file/directory name> \n" fi