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submitted 20 hours ago* (last edited 20 hours ago) by helloworld@lemmy.ml to c/linuxquestions@lemmy.zip

Using a shell script, can I watch a folder and block program execution until a file in a certain folder changes?

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[-] testfactor@lemmy.world 2 points 19 hours ago

Even if you wanted to implement a solution like this, which you shouldn't, why on earth monitor the MD5 sum instead of just the mtime of the file???? Like, doing a checksum is the least efficient method of checking this possible.

Like, you could do a simple while loop with a find myfile.txt +mmin 1; sleep 30 in it. Adjust numbers to your desired tolerance.

Again, don't do that. But if you must, definitely don't do an md5sum for godssake.

this post was submitted on 25 Aug 2025
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