create one md5 for all files in folder

tar c folderName | md5
Sample Output
a39ff7fb6f6c5850471cc92154954f88

-7
By: Whitefox
2015-05-15 13:08:33

What Others Think

You probably want this as md5sum instead of md5.
kboodu · 178 weeks and 4 days ago
It does more than you describe which is, unfortunately, a problem. tar will encode *everything*, files, dirs and all the filesystem metadata. That makes the command very fragile. Your md5sum is dependent on the contents and names of the files, the directories, the owner/group. . If I copy a directory tree, I would want the md5sum to be the same. But ... tar c folder1 | md5sum 5d41402abc4b2a76b9719d911017c592 cp -a folder1 folder2 tar c folder2 | md5sum 7d793037a0760186574b0282f2f435e7
flatcap · 178 weeks and 4 days ago

What do you think?

Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

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