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Full Discussion: ssh -t and nohup
Top Forums Shell Programming and Scripting ssh -t and nohup Post 302521444 by croachrose on Wednesday 11th of May 2011 08:32:25 AM
Old 05-11-2011
ssh -t and nohup
I have a fairly simple script like so:
Code:
nohup java -jar program.jar >> log 2>&1 &
echo $! > pidfile

This works great when using ssh server "script.sh" but not when using ssh -t server "script.sh"

The solution I came up with was to call sleep after recording the child pid. My guess at the problem is that the script and pseudo-tty are destroyed before the child process actually starts. Is there a better way to wait until the child starts before returning? Should I use something other than nohup to ensure the child starts?

I have to use ssh -t because of other constraints.
Last edited by vbe; 05-11-2011 at 09:57 AM.. Reason: please use code tags
 

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LEARN ABOUT XFREE86

ssh-argv0

SSH-ARGV0(1)						    BSD General Commands Manual 					      SSH-ARGV0(1)

NAME

     ssh-argv0 -- replaces the old ssh command-name as hostname handling

SYNOPSIS

     hostname | user@hostname [-l login_name] [command]

     hostname | user@hostname [-afgknqstvxACNTX1246] [-b bind_address] [-c cipher_spec] [-e escape_char] [-i identity_file] [-l login_name]
     [-m mac_spec] [-o option] [-p port] [-F configfile] [-L port:host:hostport] [-R port:host:hostport] [-D port] [command]

DESCRIPTION

     ssh-argv0 replaces the old ssh command-name as hostname handling.	If you link to this script with a hostname then executing the link is
     equivalent to having executed ssh with that hostname as an argument.  All other arguments are passed to ssh and will be processed normally.

OPTIONS

     See ssh(1).

FILES

     See ssh(1).

AUTHORS

     OpenSSH is a derivative of the original and free ssh 1.2.12 release by Tatu Ylonen.  Aaron Campbell, Bob Beck, Markus Friedl, Niels Provos,
     Theo de Raadt and Dug Song removed many bugs, re-added newer features and created OpenSSH.  Markus Friedl contributed the support for SSH
     protocol versions 1.5 and 2.0.  Jonathan Amery wrote this ssh-argv0 script and the associated documentation.

SEE ALSO

     ssh(1)

Debian Project							 September 7, 2001						    Debian Project
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