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49 lines
1.3 KiB
Markdown
49 lines
1.3 KiB
Markdown
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---
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title: Prompt with 2 directories
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layout: default
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created: 2008-08-05 17:48:29 +0200
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updated: 2009-02-20 00:32:43 +0100
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toc: false
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tags:
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- know-how
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- software
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- linux
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- shell
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---
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bash
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====
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To only show the last 2 directories in prompt, there are two scripts at the [Muffin Research Labs](http://muffinresearch.co.uk/archives/2007/09/25/showing-last-two-directories-of-pwd-in-bash-prompt/).
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The best one would be this:
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{% highlight bash %}
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function PWD {
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tmp=${PWD%/*/*};
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[ ${#tmp} -gt 0 -a "$tmp" != "$PWD" ] && echo \<${PWD:${#tmp}+1} || echo $PWD;
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}
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{% endhighlight %}
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Add this to `.bash_profile` and replace `\w` by `$(PWD)` (note the parents!) in your `PS1` line in that file.
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A more comfort version which replaces the home directory by a tilde, is the following. I changed the function name to
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`PWD2` to highlight the difference to the normal `PWD` variable.
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{% highlight bash %}
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function PWD2 {
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xpwd=${PWD/$HOME/"~"};
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tmp=${xpwd%/*/*};
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[ ${#tmp} -gt 0 -a "$tmp" != "$xpwd" ] && echo «${xpwd:${#tmp}+1} || echo $xpwd;
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}
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{% endhighlight %}
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zsh
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===
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The zsh has this feature built-in. Use this to show only 2 parts of the PWD:
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%3(~.«.)%2~
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This says: If `%~` (the prompt incl. replacements such as `~` for homedir) has 3 or more parts, show `«`.
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After that show 2 parts of `%~`.
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