I m new to unix command, can everyone guide me for below scenario. I need to copy the files in temp folder and replace it in test folder. Before overwrite it, I need to backup the existing file in test folder and move it to /opt/app/test/backup folder. Folder that contain several files to copy: /opt/app/temp abc.txt def.txt ghi.txt Folder needed to replace. /opt/app/test/ abc.txt def.txt ghi.txt

a way .... this korn shell should do what you want. When you are sure it works, change the cp, copy, to mv, move. No error checking; script assumes directories exist: #!/bin/ksh tempdir="/opt/app/temp" testdir="/opt/app/test" backupdir="/opt/app/test/backup" # change directory where the files are cd $tempdir # grab each file with a txt extension for file in *.txt do fileloc=${testdir}/${file} if [[ -f $fileloc ]] then cp $fileloc ${backupdir} fi cp ${file} ${testdir} done

thank you nails ...really appreciate ur help. its work great for me.