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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

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.