topic Re: variable from remote shell in Operating System - HP-UX

variable from remote shell

Shahul — Thu, 06 Oct 2005 07:54:20 GMT

Hi,

A small questiona here, may be a silly one.
I am running some condition checks in remsh, For both the conditions, I need to get a variable exported to my local shell. Confused??!!!! Here is the command

#remsh Rsystem "if [ -z "string" ];then;FLAG="Y";else;FLAG="N";fi"

#echo $FLAG (Yes, definitely it's going to be null).

How can I get this value from remsh?

TIA
Shahul

Re: variable from remote shell

Muthukumar_5 — Thu, 06 Oct 2005 07:55:45 GMT

FLAG=$(remsh Rsystem "if [ -z "string" ];then;FLAG="Y";else;FLAG="N";fi;echo $FLAG")

Now try as,

echo $FLAG

hth.

Re: variable from remote shell

Muthukumar_5 — Thu, 06 Oct 2005 08:00:52 GMT

Try as,

# FLAG=$(remsh localhost -l root -n 'if [ ! -z "string" ];then FLAG="Y";else FLAG="N";fi;echo $FLAG;')
# echo $FLAG
Y

or another way as,

# remsh localhost -l root -n 'if [ ! -z "string" ];then FLAG="Y";else FLAG="N";fi;echo $FLAG;' | grep -w 'Y'

hth.

Re: variable from remote shell

CAS_2 — Thu, 06 Oct 2005 10:34:33 GMT

I think the use of FLAG in the remote command is unnecessary because the value of FLAG is needed in the local shell, NOT in the remote shell. In other words, your local shell has to read a value printed by the remote command.

#remsh Rsystem 'if [ -z "string" ]; then; echo Y; else; echo N; fi' | read FLAG
#echo $FLAG

Or, as others wrote:

#FLAG=$(remsh Rsystem 'if [ -z "string" ]; then; echo Y; else; echo N; fi')
#echo $FLAG

P.D: the first one doesn't work on BASH shell.