How to use grep, cut, or awk to get an IP from a file
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If it's literally just a bunch of VAR=VALUE, and you want all the VALUEs to get shoved into their respective VARs, then you can just "source" the file. Be aware that's actually just the same as copying and pasting the contents of the file to where the "source" directive is, so weird things you might not have expected otherwise might have happened.
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