Running a program with multiple sessions

Poetics · 12-23-2003, 08:45 PM

I'm currently using PuTTY to connect to my Slack 9.1 box via my laptop (same LAN). I'm wondering if there's any way I can run a program (say, SETI@Home or whatnot) and not have to have PuTTY maintain a connection; ie I can log in at a later time (remotely) and either check up on the status of the program or end it or whatnot.

Any suggestions? TIA
-- Poetics

jschiwal · 12-23-2003, 11:52 PM

Look up the man or info page for nohup. This command will run a program in the background, put stderr streams into a file (nohup.out) and allow you to logout. nohup stand for no HUP.

Poetics · 12-24-2003, 02:06 AM

Thanks -- I'll try that this evening

Poetics · 12-24-2003, 06:13 AM

Okay, I've started my process with nohup (requiring root), and logged out. Logged back in and I can't find the process to kill (making sure I could, should I want the process killed). "fg" doesn't work (tells me there's nothing in the background), and the output of "ps -aux" is pretty standard, with no mention of the program I started.

Ideas?

acid_kewpie · 12-24-2003, 06:54 AM

look at "screen" it basically runs a virtual console you can connect and disconenct from at will.... like vnc for consoles.... ish.

jschiwal · 12-29-2003, 05:57 AM

You will need to su to root after logging in again. Then if you ps aux | grep <program name> you should be able to find it. Maybe the process aborted at some point before you logged back in.