TIL explicit subshell as function bodies in Bash
tl;dr: In bash you can use parenthesis for the function body instead of the usual braces and it will make that function run explicitly in a subshell.
I've been writing functions like this:
T282828
fooTff7b72(Tff7b72) Tff7b72{
T8b949e# function body
Tff7b72}
And then managing the side effects. I had no idea I could just use an explicit subshell! I could write the same thing like this:
T282828
fooTff7b72(Tff7b72) Tff7b72(
T8b949e# function body
Tff7b72)
No more worrying about side effects of over-writing variables at the global scope, but globals are still readable. No more tracking what directory I started in, or worrying about what directory I end off in.
Tags: index, til, bash, cli
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