complete -W "$(echo `cat ~/.ssh/known_hosts | cut -f 1 -d ' ' | sed -e s/,.*//g | uniq | grep -v "\["`;)" ssh

ssh autocomplete

Add to your bash profile to minimize carpal tunnel syndrome. Doesn't work with user@hostname but appending "-l user" works fine if needed. Works for ping as well.. complete -W "$(echo `cat ~/.ssh/known_hosts | cut -f 1 -d ' ' | sed -e s/,.*//g | uniq | grep -v "\["`;)" ping
Sample Output
$ssh myserver.<tab>
$ssh myserver.insanelylongcompanynamethatishardtospell.com

3
By: viner
2009-07-23 15:59:55

8 Alternatives + Submit Alt

What Others Think

Doesn't work very well on a modern SSH system where the known_hosts file is hashed. It's a good idea though.
ajt · 460 weeks and 3 days ago
@ajt to turn off hostname hashing, you may change either /etc/ssh/ssh_config or ~/.ssh/config and change HashKnownHosts from yes to no. . The approach shown here is cute, but there is a package in Debian/Ubuntu named 'bash-completion' which extends bash's command completion to help you tab-complete program *arguments*, like ssh hostnames or image/gimp file names when running gimp.
bwoodacre · 460 weeks and 3 days ago
@bwoodacre however the know_hosts file is hashed for a reason - to prevent "bad" scripts from hoping from server to server...
ajt · 460 weeks and 2 days ago
@ajt I read your comment as you saying there was no way to turn off that hashing and so mentioned how to do it. Obviously there is a reason that hashing is turned on by default for added security, but it is still an option that may be turned off by the user if they so choose.
bwoodacre · 459 weeks and 6 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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