Shell Commands for Colorizing Shell Prompt and including error information

shell_prompts.txt

# Taken from https://github.com/reedacartwright/shell-config
#
# The following commands will produce a prompt that includes the error code of the
# last command run if it is not zero. E.g.
#      [user@host dir $?=123]$ 
# If the user is not root, the prompt is green, except the error information which is red.
# If the user is root, the prompt is read, except the error information which is green.
# If the last commend exited with a 0, then the prompt looks normal.  E.g.
#      [user@host dir]$ 
#

#### BASH ####
# Add the following to your .bashrc

if [[ $EUID -ne 0 ]]; then 
# Green for users
  PS1='\[\e[1;32m\][\u@\h \W\[\e[0m\]`[ $? == 0 ] || echo " \[\e[1;91m\]\\\\$?=$?\[\e[0m\]"`\[\e[1;32m\]]\$\[\e[0m\] '
else
# Red for root
  PS1='\[\e[1;31m\][\u@\h \W\[\e[0m\]`[ $? == 0 ] || echo " \[\e[1;92m\]\\\\$?=$?\[\e[0m\]"`\[\e[1;31m\]]\$\[\e[0m\] '
fi


#### TCSH ####
# Add the following to your .cshrc

if( `id -u` == "0") then
  # Red for root
  alias precmd 'set prompt="%{\033[1;31m%}[%n@%m %c`test $? = 0 || echo %\{\\033[1\;92m\\ \\044\\077%\}=%\?%\{\\033[1\;31m%\}`]%#%{\033[0m%} "'
else
  # Green for users
  alias precmd 'set prompt="%{\033[1;32m%}[%n@%m %c`test $? = 0 || echo %\{\\033[1\;91m\\ \\044\\077%\}=%\?%\{\\033[1\;32m%\}`]%#%{\033[0m%} "'
endif