====== compsys: Ignoring matches ======

==== Prevent CVS files/directories from being completed: ====

<code>
zstyle ':completion:*:(all-|)files' ignored-patterns '(|*/)CVS'
zstyle ':completion:*:cd:*' ignored-patterns '(*/)#CVS'
</code>

==== Ignoring lost+found directories ====

<code>
zstyle ':completion:*:cd:*' ignored-patterns '(*/)#lost+found'
</code>

==== users completer add lots of uninteresting user accounts, remove them ====

<code>
zstyle ':completion:*:*:*:users' ignored-patterns \
    adm apache bin daemon games gdm halt ident junkbust lp mail mailnull \
    named news nfsnobody nobody nscd ntp operator pcap postgres radvd \
    rpc rpcuser rpm shutdown squid sshd sync uucp vcsa xfs backup  bind  \
    dictd  gnats  identd  irc  man  messagebus  postfix  proxy  sys  www-data
</code>

==== Ignore completion functions ====

<code>
zstyle ':completion:*:functions' ignored-patterns '_*'
</code>

==== Ignore parent directory ====

Useful for cd, mv and cp. Ex, cd will never select the parent directory (ie ''cd ../<TAB>''):

<code>
zstyle ':completion:*:(cd|mv|cp):*' ignore-parents parent pwd
</code>

==== Ignore what's already in the line ====

With commands like `rm/kill/diff' it's annoying if one gets offered the same filename again even if it is already on the command line. To avoid that:

<code>
zstyle ':completion:*:(rm|kill|diff):*' ignore-line yes
</code>