zsh-workshop - 20061128
=======================

Preface
-------

The following documentation is *not* a full documentation of the zsh
workshop, it just documents some general stuff which might be useful for
workshop participants. Notice: some configuration/keybindings/... are not
set up on default zsh but used in link:http://grml.org/[grml]'s
configuration.

Zsh?
----

''Zsh is a shell designed for interactive use, although it is also a
powerful scripting language. Many of the useful features of bash, ksh, and
tcsh were incorporated into zsh; many original features were added. ''

  -- http://zsh.dotsrc.org/

Merges the best from ksh, csh and bash! ('emulate sh + emulate ksh')

More than 100 builtins, ~150 options + >300 keybindings

Configuration files
-------------------

  wget -O ~/.zshrc http://hg.grml.org/grml-etc-core/raw-file/tip/etc/skel/.zshrc
  wget -O ~/.zshrc.global http://hg.grml.org/grml-etc-core/raw-file/tip/etc/zsh/zshrc

Useful modules and settings
---------------------------

  % setopt autocd && /tmp   # cd /tmp
  % setopt append_history share_history histignorealldups

  % autoload -U zmv        # zmv "programmable rename"
  % zmv '* *' '$f:gs/ /_'  # Replace spaces in filenames with a underline

  % autoload run-help      # esc-h
  % autoload compinit && compinit
  % autoload -U zed

TIP: run 'setopt ksh_option_print && setopt' to get a listing of all
current settings

Globbing / Glob Qualifier
-------------------------

  % setopt extendedglob
  % ls -d *.^c              # list all files excluding c-source files
  % ls /etc/*(@)            # list symlinks only
  % ls -l *.(png|jpg|gif)   # list pictures only
  % ls *(*)                 # list executables only
  % ls /etc/**/zsh          # which directories contain 'zsh'?
  % ls **/*(-@)             # list dangling symlinks
  % ls **/*(/^F)            # list empty directories

TIP: run 'H-Glob' on your grml system for getting help regarding globbing

Keybindings
-----------

Some very interesting ones (besides default 'bindkey'):

  CTRL-d              complete / EOF
  CTRL-l              clear-screen
  CTRL-w              delete last word
  CTRL-_              undo
  TAB                 complete and take first result
  ESC-.               insert last parameter of last typed command (similar to typing !$)
  ESC-e               edit the current line in $EDITOR
  ESC-h               call run-help for the 1st word on the commandline
  ESC-m               insert last typed word
  CTRL-E d            insert a timestamp on the commandline (yyyy-mm-dd)
  CTRL-a              begin of line
  CTRL-e              end of line
  Alt-'               quote-line => ''
  Alt-<number>-char   insert <number> of chars
  Alt-?               which-command
  CTRL-x+a            complete alias
  CTRL-x+e            complete word
  CTRL-k              kill line
  CTRL-u              copy line
  CTRL-w              copy last word
  CTRL-y              yank (insert kill-ring)

TIP: run "bindkey 'ctrl-v <keys>'" to find out which action is bount to a key

History
-------

  % history
  % !23       # Re-execute history command 23
  % ^foo^bar  # edit previous command replace foo by bar

Check your history for most frequently used commands and create
aliases/functions for them!

  % print -l -- ${(o)history%% *} | uniq -c | sort -nr | head -n 10

"Unsorted Must Knows"
---------------------

  % rehash                  # important for bash-users
  % ls /u/s/d/x/exa<TAB>    # try it :)
  % dpkg -i ~deb/foo.deb    # hash for /var/cache/apt/archives
  % ls ~doc                 # hash /usr/share/doc
  % ls =vim                 # ls $(which vim)
  % sort <f{oo,ubar}        # cat foo fubar | sort
  % less <(gzip -cd foo.gz) # gzip -cd foo.gz && less foo
  % ls >file1 >file2 >file3
  % less <file1 <file2
  % vared PATH
  % cd -<tab>
  % echo {23..42}
  % alias -s txt=vim
  % RPROMPT=%T
  % precmd () { RPROMPT="%(?..:()%" }
  % xpdf =(zcat /usr/share/doc/grml-docs/zsh/grml-zsh-refcard.pdf.gz)
  % w3m http://www.bash2zsh.com/zsh_refcard/refcard.pdf
  % man zsh-lovers

Ressources
----------

TIP: run 'zsh-help' on your grml system to get some hints regarding zsh

* link:http://grml.org/zsh/[grml's zsh webpage]
* link:http://www.bash2zsh.com/[Book: From Bash to Z Shell: Conquering the Command Line]

About this document
-------------------

(c) Michael Prokop <mika@grml.org>; HTML version powered by link:http://www.methods.co.nz/asciidoc/[asciidoc].

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