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Is there a way to install MD5 in Ubuntu without using apt-get?

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I'm not sure that I understand the question. Can you please elaborate? – jrg♦ Apr 4 '11 at 20:57
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You don't have to install anything. The coreutils package is a dependency of the Kernel amongst almost a dozen other very standard packages. You'd have to fight quite hard to remove the package.

You use it through md5sum which by default takes a file as its main argument. It's fairly easy to use it in an interactive setting though:

oli@bert:~$ md5sum - <<<"This is a test hash"
6b7cf77ca6403a2323e5fd98a462538e  -

oli@bert:~$ echo "This is a test hash" | md5sum 
6b7cf77ca6403a2323e5fd98a462538e  -

But it has other functions, run man md5sum to see them.

TL;DR: it's installed by default.

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What's wrong with apt-get? Do you mean md5sum?

apt-cache search md5sum
coreutils - The GNU core utilities

Install it from synaptics. Start synaptic, search for md5 if you mean something else.

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However, synaptic is apt-get - under a GUI shell. – jrg♦ Apr 4 '11 at 21:07
But we don't know what is wrong with apt. Maybe it is a GUI-question? – user unknown Apr 4 '11 at 21:11
Perhaps it is a GUI question. I was just saying that Synaptics is apt-get, but it's not apt-get. – jrg♦ Apr 4 '11 at 21:14

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