Re: Re: [PHP] Browser hangs with exec, HELP!!!!!

The script should not wait for the commad to finish it you use command > log 2>&1 &. This way, your redirecting both stderr and stdout to file, and kicking the process to the background. One other thing to check is permissions. Since your shell script is being invoked by your webserver, it will run as the use the web server runs as. Ussually nobody:nogroup on apache. I bet user nobody can't kill the processes your your trying to kill do to lack of permissions. By killall failing, it just might make your shell script go defunct. Maybe but a 'su TheRightUser' in shell script? I quick and dirty way to see if it is permissions is to make your web server run as root, WHICH YOU SHOULD NEVER DO, except for a quick test on a controlled machine. And then you still shouldn't do it..... Chris On Sat, 11 Nov 2000, Steve Lawson wrote: > Date: Sat, 11 Nov 2000 19:17:58 -0700 > To: <claudio@santana.net> > From: "Steve Lawson" <fookilla@home.com> > Subject: Re: [PHP] Browser hangs with exec, HELP!!!!! > > Juan, > The exec command waits for whatever you are executing to stop > before it > continues down the page. > > You probably want to avoid using a script which calls itself if you > can. > > SL. > > > ----- Original Message ----- > From: "Juan Claudio Santana Saldaña" <claudio@santana.net> > To: <php-general@lists.php.net> > Sent: Saturday, November 11, 2000 12:02 PM > Subject: [PHP] Browser hangs with exec, HELP!!!!! > > > > Hello guys, > > > > I hope you can help me with this one. I have this small php > script > > where I make this call: > > > > exec( EscapeShellCmd( "/home/dbuser/myprocess.sh & > > > /home/dbuser/logfile.log 2>&1" ) ); > > > > the script is something like this: > > > > #!/bin/bash > > > > killall myprocessa > > killall myprocessb > > > > /home/dbuser/restartoldprocesses.sh & > > exit 0 > > > > The script executes with no problems but the browser hangs and > never > > returns!!! then I go the the shell and run ps -ax and get this: > > > > <some_processid> ? Z 0:00 [myprocess.sh <defunct>] > > > > I'm running php 4.02 with apache 1.3.14 with gp, mysql, psql, ttf, > jpeg > > and gif supports. I've read every single line of the php manual > pages > > about executing shell processes and it doesn't make any sense what > is > > happening to my script. Please HELP!!!!! HELP!!!!! HELP!!!!! > > > > > > Claudio Santana. > > > > > > > ---------------------------------------------------------------------------- > ---- > > > > -- > > PHP General Mailing List (http://www.php.net/) > > To unsubscribe, e-mail: php-general-unsubscribe@lists.php.net > > For additional commands, e-mail: php-general-help@lists.php.net > > To contact the list administrators, e-mail: > php-list-admin@lists.php.net > > > -- > PHP General Mailing List (http://www.php.net/) > To unsubscribe, e-mail: php-general-unsubscribe@lists.php.net > For additional commands, e-mail: php-general-help@lists.php.net > To contact the list administrators, e-mail: > php-list-admin@lists.php.net > -- "When we lose the right to be different, we lose the privilege to be free." - Charles Evans Hughes