Check SSH fingerprints

for id in `ls -1 ~/.ssh | grep -v "authorized\|known_hosts\|config\|\."` ; do echo -n "$id: " ; ssh-keygen -l -f .ssh/$id ; done
Find all private keys and dump their fingerprints.
Sample Output
id_rsa: 2048 aa:bb:cc:dd:ee:ff:00:11:22:33:44:55:66:77:88:99  id@base-id (RSA)
other: 2048 00:11:22:33:44:55:66:77:88:99:aa:bb:cc:dd:ee:ff (RSA)

By: drockney
2014-04-16 14:12:20

What Others Think

You might want to filter out .ssh/config too: for id in `ls -1 ~/.ssh | grep -v "authorized\|known_hosts\|config\|\."` ; do echo -n "$id: " ; ssh-keygen -l -f .ssh/$id ; done
flatcap · 231 weeks ago
Excellent point - thanks, added it.
drockney · 231 weeks ago
It's still missing rc and environment. You can make it faster by not using grep: for id in `ls -d ~/.ssh/!(authorized_keys|config|environment|known_hosts|rc|*.pub|*.bak)` ; do echo -n "$id: " ; ssh-keygen -l -f $id ; done
pdxdoughnut · 231 weeks ago
Oh, wait. You don't even need to use ls or a subshell: for id in ~/.ssh/!(authorized_keys|config|environment|known_hosts|rc|*.pub|*.bak) ; do echo -n "$id: " ; ssh-keygen -l -f "$id" ; done
pdxdoughnut · 231 weeks 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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