Note : centos .bashrc for charles
# .bashrc

# Source global definitions
if [ -f /etc/bashrc ]; then
  . /etc/bashrc
fi

# User specific aliases and functions
export TERM=xterm-256color
# Source global definitions
if [ -f /etc/bashrc ]; then
    . /etc/bashrc
fi
function git_branch {
    ref=$(git symbolic-ref HEAD 2> /dev/null) || return;
    echo "("${ref#refs/heads/}") ";
}
 
function git_since_last_commit {
    now=`date +%s`;
    last_commit=$(git log --pretty=format:%at -1 2> /dev/null) || return;
    seconds_since_last_commit=$((now-last_commit));
    minutes_since_last_commit=$((seconds_since_last_commit/60));
    hours_since_last_commit=$((minutes_since_last_commit/60));
    minutes_since_last_commit=$((minutes_since_last_commit%60));
 
    echo "${hours_since_last_commit}h${minutes_since_last_commit}m ";
}
#alias diff=colordiff
 
function git_diff() {
    git diff --no-ext-diff -w "$@" | vim -R -
}

PS1="\[\033[0;33m\][\[\033[0;33m\]\w\[\033[0;33m\]]\[\033[0;31m\]\$(git_branch)\[\033[0;35m\]\$(git_since_last_commit)\[\033[0;35m\]CentOS-\A\n\[\033[1;37m\]$ \[\033[0m\]$ "

# User specific aliases and functions
alias grep='grep --color'

Result :
[~/codes/C_Example](master) 11h1m CentOS-21:50

Show :