Bash variables

mtm100 · 10-26-2011, 06:51 AM

Hi,

I'm very new to linux and am currently creating a very simple file backup script in bash and I am using Ubuntu.

I am calling backup.sh script from within the terminal using sudo bash backup.sh.

I have a configuration file separate from backup.sh (for ease of upgrade etc) , that contains variables e.g. email address to send logs to, location of log file, location of backup files etc. Both backup.sh and the config file will reside in the same folder.

How do I make the variables available to backup.sh – easiest way possible – as you guess by my question I'm a novice!

Thanks

kbp · 10-26-2011, 07:23 AM

It called sourcing .. you can just use a dot(.) followed by a space then followed by the path to the file.

Code:

#!/bin/bash

# import config
. /etc/myconfig.conf

...

mtm100 · 10-26-2011, 09:52 AM

Thanks kbp, saved me many tears, hours and swear words, thanks again.

mtm100 · 10-30-2011, 03:49 PM

Similar question to the original, I have written a couple of functions that I am having to repeat across a couple of scripts (within the same back-up application) - is there a similar method for creating like a global (or sourcing file) where I can call them from?
Thanks

sycamorex · 10-30-2011, 03:53 PM

Quote:

Originally Posted by mtm100

Similar question to the original, I have written a couple of functions that I am having to repeat across a couple of scripts (within the same back-up application) - is there a similar method for creating like a global (or sourcing file) where I can call them from?
Thanks

As far as I know, you could use exactly the same method, ie. sourcing:

Code:

. /path/to/file/with/global/functions

mtm100 · 10-31-2011, 10:27 AM

Great, looks to be working by calling by:
. Configuration/myfunctions.sh
and then calling the function without containing the brackets e.g.
Logging_Events_Errors1

Thanks for your help