Posts by nogjam
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...
Question
discussion
I came across this in a bash script: excludes+=("${2-}") What is the meaning of ${2-}?
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...
Answer
