Hello, Any process should "wait()" for all of its children to exit or the children will become a zombie process when they exit. This isn't a good thing.
See wait() 2, and fork() 2 for more information. Regards, -- Jason Muskat | GCUX - de VE3TSJ ____________________________ TechDude e. [EMAIL PROTECTED] m. 416 .414 .9934 http://TechDude.Ca/ > From: David Richardson <[EMAIL PROTECTED]> > Date: Fri, 05 May 2006 16:03:39 -0400 > To: <[email protected]> > Subject: when does ssh return? > > I've looked through ssh man page and FAQ and tried a google search, but > can't seem to figure out how to use ssh to start a command on a remote > machine, have ssh exit immediately, and still have the command running > on the remote machine. > > When I do > > [popcorn][~]$ time ssh [EMAIL PROTECTED] "sleep 10&" > > real 0m10.216s > user 0m0.060s > sys 0m0.000s > > ssh waits for the sleep to finish. Does anyone either understand why > ssh is waiting for sleep to finish or how to make it not do it? > > I've tried > > ssh [EMAIL PROTECTED] "run_and_return sleep 10" > > where run_and_return is the bash script: > > #!/bin/bash > ?@& > > and a similar thing with a perl script that forks. I even tried having > the perl script fork, have its child fork, and then the grandchild > execute the command. > > But ssh keeps sticking around... > > Thanks for any help, > Dave > > p.s. I'm using > > [popcorn][~]$ ssh -V > OpenSSH_3.5p1, SSH protocols 1.5/2.0, OpenSSL 0x0090701f > > on > > [popcorn][~]$ uname -a > Linux popcorn 2.4.20-6 #1 Thu Feb 27 10:01:19 EST 2003 i686 athlon i386 > GNU/Linux > > with Fedora Core 2 installed.
