[:/home/imran] $ grep PS1 .bashrc /etc/bash.bashrc /etc/skel/.bashrc
/etc/bash.bashrc:[ -z "$PS1" ] && return
/etc/bash.bashrc:PS1='${debian_chroot:+($debian_chroot)}\u@\h:\w\$ '
/etc/skel/.bashrc:    PS1='${debian_chroot:+($debian_chroot)}\[\033[01;32m\]\u@\h\[\033[00m\]:\[\033[01;34m\]\w\[\033[00m\]\$ '
/etc/skel/.bashrc:    PS1='${debian_chroot:+($debian_chroot)}\u@\h:\w\$ '
/etc/skel/.bashrc:    PS1="\[\e]0;${debian_chroot:+($debian_chroot)}\u@\h: \w\a\]$PS1"
[:/home/imran] $