Shell Programming and Scripting

Hi,

I need help for using export command. Lets consider there are 2 servers ie. A & B. I am running one script on server A which calls another script on server B using remsh command. There is one variable in the script on server B which do not gets evaluated and ultimately i get the error.

Can i use export command to resolve this problem? I can not change the script on server B. I can only the change the script on server A.

Thank You.

if you cant change B script then you can export this variable in your .kshrc file on server B

Exporting a variable to the local environment isn't going to help in this case.
You can, however, take advantage of the feature where any variable assignment placed in front of the command on the command line is placed into the environment of the process that is started. For instance the small script:

Code:

#!/usr/bin/env ksh
echo "($SOME_VAR)"
exit

Yields two different results depending on whether the variable is assigned on the comand line:

Code:

$ export SOME_VAR=default
$ script
(default)
$ SOME_VAR=foo script
(foo)

So, for your case you just need to put the variable assignment before the command that is given to rsh. Something like this should work:

Code:

remsh "SOME_VAR=desired_value  remote-cmd-name param1 parm2"

No changes at all are then necessary on the remote side, and allows the value of the variable to change, if needed, with each execution of the process on the local host (host a).

exporting variable is not local (A) on the remote host (B) in .kshrc