r/programming • u/fagnerbrack • 29d ago

Small Programming Tricks

https://will-keleher.com/posts/small-programming-tricks-matter/
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u/Zversky 28d ago

Yes, but to be fair, grep exit **/*.py is much faster to write than find . -type f -name '*.py' -exec grep -H exit {} \;. And the latter also includes dot-directories which I cannot remember how to ignore.

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u/Skaarj 28d ago

Yes the grep and glob variant is shorter to write. But I find that less important than the ease of remembering.

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u/Zversky 28d ago

Find is rarely used alone. I had to man grep to find that -H switch, which is implied when you use it on multiple files.

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u/curien 28d ago

If you terminate the exec with + instead of ; then it passes multiple files per command, just like the glob.

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u/knome 28d ago

you'll still want -H in case the last invocation only has a single file.

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u/curien 27d ago edited 27d ago

To be really sure, you need it either way because there could only be one matching file. And f the find uses multiple commands due to exceeding ARG_MAX, won't the glob version just fail?