Display command options without typing --help

<Ctrl+o>
Type out the command and simply press to see the list of options for that command without having to type --help.
Sample Output 
$ ssh <Ctrl+o>
usage: ssh [-1246AaCfgKkMNnqsTtVvXxYy] [-b bind_address] [-c cipher_spec]
           [-D [bind_address:]port] [-e escape_char] [-F configfile]
           [-i identity_file] [-L [bind_address:]port:host:hostport]
           [-l login_name] [-m mac_spec] [-O ctl_cmd] [-o option] [-p port]
           [-R [bind_address:]port:host:hostport] [-S ctl_path]
           [-w local_tun[:remote_tun]] [user@]hostname [command]

$ service <Ctrl+o>
Usage: service < option > | --status-all | [ service_name [ command | --full-restart ] ]

-7
By: bugmenot
2011-08-19 00:09:53
bash hotkey
9
Submit An Alternative

What Others Think

Seems only works for emacs mode of bash
nonoob · 786 weeks and 3 days ago
yes-yes, this only works if you use the emacs mode in bash.
davidpgero · 786 weeks and 2 days ago
doesn't work for most commands, hence useless most of the time.
gerard · 786 weeks and 2 days ago
Should read "execute and re-edit." Great for when you're working on commandline-fu that takes a couple test runs before getting it right.
h3xx · 786 weeks and 2 days ago
Just as pressing "Enter" key.
totti · 786 weeks and 2 days ago
Nice to know this "execute and re-edit", but definitely a misleading explanation here. If you don't know what it really does, it could even be dangerous. I *might* upvote this with a different explanation, but as it is I'm going to downvote, sorry :)
wipu · 786 weeks and 2 days ago
Ah, a Bash-ism using emacs mode. Gotta love non-portable commands.
atoponce · 786 weeks and 2 days ago
does not work in /bin/sh , /bin/bash nor /bin/tcsh
Mozai · 786 weeks and 2 days ago
very good tip
kev · 785 weeks and 5 days ago

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