Hi, I would like to know, how can i run the user ( su - Pepe) from a shell script passing the password for parameter or is there another command that do the same? because I run the command but the system gives me the password all time. I would to want what the proccess will be running automatic without what i have to put the password. Amaury

This question is asked a lot. The best solution I've seen is to use the expect scripting language. Bundled with expect, is a demo program that does exactly what you're asking for. Here is a modified version of it that you should be able to modify: #!/usr/local/bin/expect -- # wrapper to make passwd(1) be non-interactive # username is passed as 1st arg, passwd as 2nd # exutable only by root set password [lindex $argv 1] spawn /usr/bin/passwd [lindex $argv 0] expect "password:" send "$password\r" expect "password:" send "$password\r" expect eof If your system doesn't have expect, you can probably get it here at the expect home page: http://expect.nist.gov/