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Top Forums Shell Programming and Scripting Remote login and running a script on multiple servers Post 302891595 by Don Cragun on Thursday 6th of March 2014 04:03:46 PM
Old 03-06-2014
Let me try once more.

Text inside single quotes such as $process in the command:
Code:
rsh $HOST 'nohup $process.sh ... &'

will not be expanded on the local system.
Code:
HOST=ws1
process=abc
rsh $HOST 'nohup $process.sh >/dev/null &'

will run the command:
Code:
nohup $process.sh > /dev/null &

on ws1. However, if you use double quotes instead of single quotes:
Code:
HOST=ws1
process=abc
rsh $HOST "nohup $process.sh >/dev/null &"

will run the command:
Code:
nohup abc.sh > /dev/null &

on ws1.

I repeat for the last time: Since you are using single quotes, how is the variable process defined on the remote systems so that it will be an exported variable in the environment of the shell started by rsh on those remote systems?
 

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TTYREC(1)						      General Commands Manual							 TTYREC(1)

NAME
ttyrec - a tty recorder SYNOPSIS
ttyrec [-a] [-u] [-e command] [file] DESCRIPTION
Ttyrec is a tty recorder. It is a derivative of script(1) command for recording timing information with microsecond accuracy as well. It can record emacs -nw, vi, lynx, or any programs running on tty. Ttyrec invokes a shell and records the session until the shell exits. Recorded data can be played back with ttyplay(1). If the argument file is given, the session will be recorded in that file. Otherwise, ttyrecord is used as default. OPTIONS
-a Append the output to file or ttyrecord, rather than overwriting it. -u With this option, ttyrec automatically calls uudecode(1) and saves its output when uuencoded data appear on the session. It allow you to transfer files from remote host. You can call ttyrec with this option, login to the remote host and invoke uuencode(1) on it for the file you want to transfer. -e command Invoke command when ttyrec starts. ENVIRONMENT
SHELL If the variable SHELL exists, the shell forked by ttyrec will be that shell. If it's not set, the Bourne shell is assumed. (Most shells set this variable automatically). SEE ALSO
script(1), ttyplay(1), ttytime(1), uuencode(1), uudecode(1) TTYREC(1)
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