I wanted to access key/value pairs from a configuration file for a bash script. I accomplished this using the following technique:

# Create the configuration file
 
$ touch myconfig.file

Using your preferred text editor, add the desired configurations. For example:

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# vim myconfig.file
 
sampleKey=sampleValue
anotherVar=anotherVal

Now source the file within your script and consume the data:

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# sampleScript.sh
 
# source the configuration file created above
source /path/to/myconfig.file
 
# access the data
echo $sampleKey

Happy scripting and shelling.