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Created April 28, 2024 23:30
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Space Matters
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space-matters.md

Space Matters

Can you spot the difference between the following 2 scripts?

#!/bin/bash
ps \ 
  aux

#!/bin/bash
ps \
  aux

Hint: One works and one doesn't.

Spoiler:

Makefiles and Linus aren't the only ones who care about spacing.

There's an extra space after the \ in the first example.

We actually experienced a bug on Cloud Seeder due to this issue. It took us a bit to spot it!

You can remove trailing whitespace like this:

sed 's/[[:blank:]]*$//'
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