Hi! I have two questions. It's already 1.15 AM :( can't solve it. May be somebody will help? 1) Write a sript caled smartrm which will accept an unlimited number pf filename extensions and will remove all file in the curent dir with thouse extentsions. For example: smartrm o c i will remove all files in the curent dir with .o .c .i extentions. If no arguments provided print error. I have this, but it only removes files with first extention ************* #!/bin/ksh integer cn[$#] integer i if(($# == 0)) then print "Error" exit 1 fi IFS='.' for number in $* do rm *.$*" done ******* 2) Second problem is harder: write a script called backup that will backup a dir containing C files. This script will accept the name of dir. If the dir already exitst (with _bak extention) print error. Use the curent dir as a defaut dir. Given the name of a dir the script will crate a new dir with '_bak' appendet to the name of the dir. Thanx in advance, oXide

Problem 1 solution: #! /bin/ksh if [[ $# -eq 0 ]] ; then print "Error" exit 1 fi for type in "$@" ; do rm *.$type done -jim

Thanks Jim!! It realy works :) May be you could help me to solve the second problem? That would be very nice of you. oXide

Problem 2 solution (untested) #! /bin/ksh # Test for an argument if [[ $# == 0 ]] ; then print "Argument needed: directory name" exit 1 fi # Strip the ending "/" on the directory case $1 in */ ) DIR=${1%*/} ;; * ) DIR=$1 ;; esac # Test that entered directory exists if [[ ! -d "$DIR" ]] ; then print "Directory does not exist." exit 1 fi # Check for a backup of the entered directory if [[ -d "${DIR}_bak" ]] ; then print "Backup already exists." fi # Make the backup directory and copy files to it mkdir ${DIR}_bak cp ${DIR}/*.c ${DIR}_bak -jim

Forgot the "exit 1" after the Check for a backup of the entered directory: if [[ -d "${DIR}_bak" ]] ; then print "Backup already exists." exit 1 fi -jim