ZSH Notes

Author

Richard Harding

Contact

mitechie (twitter/identica)

Repository

http://github.com/mitechie/zshrc

Bookmarks

http://www.delicious.com/deuce868/zsh

Prompt

[master//zsh_samples N ]%             (rharding@rharding:~/src/zsh_samples/)

• Prompt has two parts - left/right
• When the terminal line runs long, right side disappears.
• Using vcs_info you can add in custom prompt details for all major VCS (svn/git/hg/bzr)

Vim Mode

• esc : enter command mode
  • I use mapped to jj
• w/b : forward/back word in editing prompt
• cw/dw : change current word/delete word
• f / : move cursor forward to first instance of forward slash
• !!:s/XX/YY : Run last command, but replace XX with YY
• / and ? : searching the command history
  • n/N : next/prev result
• v : edit current command line in vim

Vim Edit Sample

for i in $(seq 1 10); do time wget -t1 -O/dev/null \
'http://www.predictadxml.com/ads/?pid=5152&cs=872&keyword=cash&ref=http%3a%2f%2fwww.exampledomain.com&adult=0&ua=Mozilla%2f5.0+(Windows%3b+U%3b+Windows+NT+5.1%3b+en-US%3b+rv%3a1.9.0.3)+Gecko%2f2008092417+Firefox%2f3.0.3&f=1&subid=1&count=2&ip=194.117.97.95'; \
done 2>&1 | grep real

Working with directories

• No cd required

$ /var/www/

• auto pushd

$ cd /var/log
$ cd /var/www
$ cd /etc/apache2
$ dv
$ ~1

• ignore tab complete

$ /home/rharding/flos<tab>
$ ~/flos<tab>

• super globbing

$ workit hotalert
$ ls -al qsat**/* G mako L

Aliases

• Directory alias
  • more than an alias for a cd command, usable as parameter to other commands

$ alias -g alog="/var/log/apache2/"
$ alog
$ ls alog

• Pipe Alias
  • uses -g flag

$ workit zsh_samples
$ alias -g G='|grep'
$ ls | grep zsh
$ ls G zsh

Pipe Aliases

• G : grep
• L : less
• H : head
• T : tail
• S : sort
• W : wc -l
• V : vim
• A : ack-grep

Extension Aliases

Opens files with that extension in that application

• uses -s flag

$ alias -s php=gvim
$ alias -s pdf=xpdf
$ fabfile.py
$ Python_Testing_Beginner's_Guide.pdf

Tab Completion is better

$ workit workit

• Shows all of the possible commands with help text

$ git <tab><tab>

• Show grouped options

$ git show <tab>
$ ssh <tab>

• Provded by completion functions, small and easy to do

$ __git<tab>

Shared History

$ ls /home

• switch to already running tab

$ <enter>
$ <up-arrow>

Workit

• http://github.com/mitechie/workit

Assists in quickly working on various src/text projects you might have.

• Provides a postactivate and postdeactivate file
  • perform actions (update vim ctags)
  • set env variables (build paths)
  • start/stop services (mysql/postgres/apache)
  • define shortcuts used i.e. (qunit)

Workit Example

$ workit tadmin
$ vi postactivate

$ workit zsh_samples
$ workit <tab>
$ workit pyvim
$ workit hotalert

Workit Notes

Currently only works in zsh, needs some bash love. Completion scripts :

compctl -g "`show_workit_projects`" workit

ZSH has higher level arrays that bash doesn't. Need to translate.