FWIW if you use Bash shell you can also use history expansion to shorten the mkd...

obtu · on July 18, 2012

You mean "$_". !$ refers to the previous command in the history.

seclorum · on July 18, 2012

!! refers to the previous command in the history. !$ refers to the last cmd-line option in the history.

obtu · on July 18, 2012

I know that, the bit I want to emphasize is that it won't be the mkdir argument that is on the same line.

soren_dahl · on July 18, 2012

Fairly sure I meant !$ :)

http://www.gnu.org/software/bash/manual/bashref.html#Word-De...

obtu · on July 18, 2012

Seriously, try it. History expansion works on input lines separated by the user asking the shell to run them, it can't cross reference command arguments on the same command line.

soren_dahl · on July 18, 2012

You are correct, so have an upvote.

&& in OS X seems to put the left side into history and works as I described, but it didn't work when I tried it in Ubuntu 10. $_ works in both.

soren_dahl · on July 18, 2012

I have tried both, the difference is only that !$ echos the expanded command, while $_ simply runs the expanded command; both create a directory and cd into it.

(I'm running OS X, FWIW)

icebraining · on July 18, 2012

    mkcd() { mkdir "$1" && cd "$1" }