Martín Alejandro Carmona Selva wrote: > Hello, i am a little more than just a newbie to perl... > I am writting some perlbased XMLRPC to perform actions on my server > as I connect via web. > > i am doing a simple task (adding an user) but, no matter how hard I > try I cannot get the result from that command into the variable. > > Let me put the example code fot you to guide: > > $rescmd =""; # no error by default > $cmd = "useradd -s /bin/false $useradd"; > $rescmd = `$cmd`; > > The problem is that $rescmd stays empty. I know that it will be empty > if everything goes okay (since well, useradd returns nothing if no > error occours), but I'm trying to create an already existing user (to > get the error).
Error messages typically go to stderr, which backticks don't capture. You should try duping stderr onto stdout: $cmd = "useradd -s /bin/false $useradd 2>&1"; You can also get the exit status from $? (n.b. you should run your script with -T and untaint $useradd if it is derived from outside your script, making sure it doesn't include other nasty characters. Read perldoc perlsec for more details.) -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
