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Posts by nogjam‭

3 posts
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Meta Do domain-specific how-to's fit well within Q&A?

I've recently gained some PAM (Pluggable Authentication Modules) knowledge. I had written a Reddit post plus reply and then thought the stuff I shared would fit well here. Do domain-specific how-t...

2 answers  ·  posted 6mo ago by nogjam‭  ·  last activity 6mo ago by Andreas witnessed the end of the world today‭

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Q&A What does ${2-} mean in bash?

I came across this in a bash script: excludes+=("${2-}") What is the meaning of ${2-}?

1 answer  ·  posted 1mo ago by nogjam‭  ·  last activity 1mo ago by nogjam‭

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Q&A What does ${2-} mean in bash?

The dash, -, is part of a Parameter Expansion syntax that tells Bash to check for existence of the preceding parameter, a.k.a. whether it is "set", substituting whatever follows if it isn't. For th...

posted 1mo ago by nogjam‭  ·  edited 1mo ago by nogjam‭

Answer