this post was submitted on 05 Mar 2025
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So true. Every time I have to look up how to write a bash for loop. Where does the semicolon go? Where is the newline? Is it terminated with
done
? Or withend
? The worst part with bash is that when you do it wrong, most of the time there is no error but something completely wrong happens.I can only remember this because I initially didn't learn about
xargs
so any time I need to loop over something I tend to use
for var in $(cmd)
instead ofcmd | xargs
. It's more verbose but somewhat more flexible IMHO.So I run loops a lot on the command line, not just in shell scripts.