Linux: Customize Shell Prompt

Show current prompt string1

echo $PS1

• \u --> Username
• \h --> Hostname
• \w --> Current working Directory
• More info @man page bash

To modify edit ~/.bashrc

\[\e]0;\u@\h: \w\a\]${debian_chroot:+($debian_chroot)}\[\033[01;31m\]\u@\h\[\033[00m\]:\[\033[01;34m\]\w\[\033[00m\]\$
export PS1

http://ezprompt.net
https://wiki.archlinux.org/index.php/Bash/Prompt_customization#Colors

Examples:

PS1="\[\e[31m\][\[\e[m\]\[\e[31m\]\u\[\e[m\]@\[\e[31m\]\h\[\e[m\]\[\e[31m\]]\[\e[m\]:\[\e[36m\][\[\e[m\]\[\e[36m\]\w\[\e[m\]\[\e[36m\]]\[\e[m\]\[\e[31m\]\\$\[\e[m\] "
export PS1="\[\e[33m\]\u\[\e[m\]@\[\e[31m\]\h\[\e[m\]:[\W]\\$ "
# Red username@green host:[blue path]$
PS1="\n\[\e]0;\u@\h: \w\a\]${debian_chroot:+($debian_chroot)}\[\033[01;31m\]\u\[\033[01;33m\]@\[\033[01;32m\]\h\[\033[00m\]:\[\033[01;34m\][\w]\[\033[00m\]\$ "

To test some color:

echo -e "\033[01;31mhi"

https://www.maketecheasier.com/8-useful-and-interesting-bash-prompts/