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PObroken bash prompt wrap line
 

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  1. PObroken bash prompt wrap line
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    <p>I'm customizing my bash prompt on OsX to include git branch plus some marks of the branch state. This breaks line wrap.</p> <p>I know that <a href="https://stackoverflow.com/questions/105349/bash-prompt-in-os-x-terminal-broken">I have to add \[ and \] to prevent this issue</a>, but doing so in the functions does display \[ and \] litteraly.</p> <p><strong>What can I do to escape such sequences in those functions?</strong></p> <p>Disclaimer: those are my first attempts in bash scripting.</p> <pre><code>function parse_git_dirty { # TODO make git status response a variable # [branch+] : working dir has staged changes if [[ $(git status 2&gt; /dev/null | grep "to be committed") ]] then S=$S"$(tput setaf 2)+$(tput sgr0)" fi # [branch+] : working dir has unstaged changes if [[ $(git status 2&gt; /dev/null | grep "not staged for commit") ]] then S=$S"$(tput setaf 1)+$(tput sgr0)" fi # [branch+] : working dir has untracked files if [[ $(git status 2&gt; /dev/null | grep "tracked files") ]] then S=$S"$(tput setaf 1)+$(tput sgr0)" fi # [branch&lt;] : local branch is behind origin if [[ $(git status 2&gt; /dev/null | grep "Your branch is behind") ]] then S=$S"$(tput setaf 5)&lt;$(tput sgr0)" fi # [branch&gt;] : local branch is ahead origin if [[ $(git status 2&gt; /dev/null | grep "branch is ahead of") ]] then S=$S"$(tput setaf 5)&gt;$(tput sgr0)" fi # [branch&lt;&gt;] : branches have diverged if [[ $(git status 2&gt; /dev/null | grep "have diverged") ]] then S=$S"$(tput setaf 5)&lt;&gt;$(tput sgr0)" fi echo $S } function parse_git_branch { git branch --no-color 2&gt; /dev/null | sed -e '/^[^*]/d' -e 's/* \(.*\)/\1/' } function show_git_branch { if [[ $(parse_git_branch) ]] then echo "$(tput setaf 2)($(tput sgr0)$(parse_git_branch)$(parse_git_dirty)$(tput setaf 2))$(tput sgr0)" fi } export PS1="\u\[$(tput setaf 2)\]@\[$(tput sgr0)\]\h\[$(tput setaf 2)\]:\[$(tput sgr0)\]\W\[\$(show_git_branch)\] " </code></pre>
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    1. USBenoît Pointet
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      1. USPaŭlo Ebermann
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    1. CONot sure exactly what the issue is, your code seems to work correctly, using it i get the following prompt, hutcho@hutcho-M17x:math(master+). BTW, this is a cool idea.
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      1. USluke h
    2. COI have some (not all that unusual) repositories where `git status` takes about 40 seconds to complete, and your code will run `git status` six times for each bash prompt! I've added an answer below mentioning `__git_ps1`, which probably does what you want and can be configured for different levels of detail in the output.
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      1. USMark Longair
 

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