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What do you use GNU Parallel for?

From: Ole Tange
Subject: What do you use GNU Parallel for?
Date: Wed, 16 Jul 2014 20:34:22 +0200

I am always looking for neat examples to use GNU Parallel for.

Today I had access to a Debian machine where all files in /usr/lib had
been replaced with zeros. So the file names were correct, but the
content was wrong.

So the solution is: Find the files, find which package provides the
file, reinstall those packages:

find /usr/lib -maxdepth 1 -type f -iname "*lib*" | parallel dpkg -S |
parallel --colsep : -uj1 apt-get install --reinstall {1}

Did you do anything neat with parallel?


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