I have problem in executing linux command $output=exec("ls -a"); echo "<pre>$output</pre>"; the above coding works, but $output=exec("cp file1 file2"); echo "<pre>$output</pre>"; does not works. can any one help me out of this problem ------------------------------------------------- Sify Mail - now with Anti-virus protection powered by Trend Micro, USA. Know more at http://mail.sify.com Sify Power mail- a Premium Service from Sify Mail! know more at http://mail.sify.com -- PHP Database Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php