In DOS there was the ability to verify a singular files integrity by using chkdsk c:/file.dos......The result indicated if the file integrity was so. There was also the ability to set in the Autoexec.bat set verify=ON - which made sure that EVERY file that you copied you did not need to use the verify option C:\file.dos C:\temp\file.dos /v My questions are 1. Is there a global set verify=on in Linux? 2. Is there the ability to verify a single files integrity as above with a similar command such as chkdsk The reason I ask is that I recently lost my home directory and I had KDAR backing up the /home directory every week to an NFS drive. When I came to restore the archive the files header was reported to be corrupted. Also as a backup I copied with Konqueror the /home directory to an NFS drive and some of the files are aslo now not readable due corruption. I have made an Enhancement report to both Konqueror and KDAR that they include a verify option like most backup programs. Over many years I have seen backups unable to be restored because verify was not turned on. Now its happened to me.I understand the file system in Linux is far superior in its disk I/O but I dont want to waste time backing up if I cannot ensure the files are intact. This Site Supports www.tpg.com.au DSLAM ADS: 2/+ @24,000KBPS Scottt Couston