Hello all

I am attempting to write my first ever script from scratch and making some progress.

My first shell script file executes a list of commands contained in a second file. I need to pass a parameter to this command file how do I do this???

Hope this makes sense...

t.

Explain more !!

Sorry...okay

Im am trying to pass a variable 'x' lets say to /etc/bacula/bconsole -c bin/bconsole.conf </bin/baculacommands.sh. The first part before the < is the bacula console program and after the < is a file which contains a list of commands that needs to be executed by the console program. I need to pass a variable to this command list file as well how do I do this and how do i ref the variable in the second file...

Hope this is much more clearer...

Thanks.

Not much clearer!

I think the problem is you are asking for the impossible so it's hard to understand but easy for you to conceptualise.

If you want to write a script that will pass a combination of fixed commands and variable data to an external program that will take its input from stdin (as bconsole does) then it is better to use a "here document" or a "here string" rather than a file because you can easily change the variable data and your script will be briefer and easier to understand. The alternative is to write the input file on-the-fly but it's more obscure and complex.

Here's a "here string" example which also captures output from bconsole in case the script is not being run interactively (you could log it instead of echoing it)

HI Catkin thanks for your response but I am so confused!

Here is an example of my files:-

so my bacula.sh file
#! /bin/bash

Vol=$(echo "st storage=DEV6-Changer" | bconsole | grep Volume: | cut -d':' -f2)
echo $Vol
/etc/bacula/bconsole -c bin/bconsole.conf </bin/baculacommands.sh
exit 0

For my baculacommands.sh file i have something like:-
mount
purge
3
8

I just want to add the $Vol name that I have found from my first file to the bottom of my second file - but am clueless as to how to pass the variable to this file...

Hope this is clearer...

Based on your script but using a here string instead of the file and omitting capturing the bconsole outputIf you still want to use a file then

Hi Catkin

And thanks for ALL your help Much appreciated!

I did resolve the problem in the end. Probably not as simple or clean as your code but it works. I simply added lines to clear the content of the baculacommands file each time and then add the commands that I want to execute to that file along with the volume name as a string! Works a charm!

Thanks again!

Welcome!

Glad you found a solution that works for you.

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