Post History
I came across this in a bash script: excludes+=("${2-}") What is the meaning of ${2-}?
#1: Initial revision
by
nogjam
·
2024-10-30T18:36:59Z (6 days ago)
What does ${2-} mean in bash?
I came across this [in a bash script](https://github.com/l0b0/tilde/blob/e48ba0c2c892ac2426a1e6b6e5f9930253398b70/scripts/make-links.sh#L89):
`excludes+=("${2-}")`
What is the meaning of `${2-}`?