Teraz na szybko 
Aby osiągnąć taki efekt:
noose@noose-laptop ~/projekt_1/ (branch)$
należy do .bash_profiles wpisać:
function parse_hg_branch {
ref=$(hg branch 2> /dev/null) || return
echo "("${ref#refs/heads/}")"
}
PS1="\[\033[01;32m\]\u@\h\[\033[01;34m\] \w \$(parse_hg_branch)$\[\033[00m\] "
źródło: http://railstips.org/blog/archives/2009/02/02/bedazzle-your-bash-prompt-with-git-info/
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