# This script must be sourced from the user's profile
# set_prompt.s: set the bash prompt

# By Vitek Gite and Lee Rothstein, 2008-05-22, 06:46 PM.
# Vitek supplied the article and the comments, here. Lee
# supplied the exact escape sequences to generate a prompt
# such as:

#   [lr@GW2] [/local/Scripts]
#    2010-01-08 Fri 02:32:17 PM
#   $ xp

# in color.

# The notes (comments), below, are largely quoted from an article
# by Vitek Gite at the NixCraft forum:

# http://www.cyberciti.biz/faq/bash-shell-change-the-color-of-my-shell-prompt-under-linux-or-unix

# Above article was still available as of 2010-01-08.
# My editor, TextPad, http://TextPad.com, allows urls and my
# browser to be accessed directly from text files. How about
# yours?

#PVersion="0.02.02.000"
#PUpDate="2010-02-15, 17:38:29"

#Textual Elements
#================
#  * \a -- an ASCII bell character (07)
#  * \d -- the date in "Weekday Month Date" format
#          (e.g., "Tue May 26")
#  * \D{format} -- the format is passed to strftime(3) and the
#          result is inserted into the prompt string; an empty
#          format results in a locale-specific time
#          representation. The braces are required
#  * \e -- an ASCII escape character (033)
#  * \h -- the hostname up to the first '.'
#  * \H -- the hostname
#  * \j -- the number of jobs currently managed by the shell
#  * \l -- the basename of the shell’s terminal device name
#  * \n -- newline
#  * \r -- carriage return
#  * \s -- the name of the shell, the basename of $0 (the portion
#          following the final slash)
#  * \t -- the current time in 24-hour HH:MM:SS format
#  * \T -- the current time in 12-hour HH:MM:SS format
#  * \@ -- the current time in 12-hour AM/PM format
#  * \A -- the current time in 24-hour HH:MM format
#  * \u -- the username of the current user
#  * \v -- the version of bash (e.g., 2.00)
#  * \V -- the release of bash, version + patch level (e.g.,
#          2.00.0)
#  * \w -- the current working directory, with $HOME abbreviated
#          with a tilde
#  * \W -- the basename of the current working directory, with
#          $HOME abbreviated with a tilde
#  * \! -- the history number of this command
#  * \# -- the command number of this command
#  * \$ -- if the effective UID is 0, a #, otherwise a $
#  * \nnn -- the character corresponding to the octal number nnn
#  * \\ -- a backslash
#  * \[ -- begin a sequence of non-printing characters, which
#          could be used to embed a terminal control sequence into
#          the prompt
#  * \] -- end a sequence of non-printing characters
#
# Colors
# ======
#
# To add colors to the shell prompt use the following export
# command syntax:
# '\e[x;ym $PS1 \e[m'
#
# Where,
#  * \e[ Start color scheme
#  * x;y Color pair to use (x;y)
#  * $PS1 is your shell prompt
#  * \e[m Stop color scheme
#
# To set a red color prompt, type the command:
#
# $ export PS1="\e[0;31m[\u@\h \W]\$ \e[m "
#
# Color   Code
# Black   0;30
# Red     0;31
# Green   0;32
# Brown   0;33
# Blue    0;34
# Purple  0;35
# Cyan    0;36
#
# Replace lead digit 0 with 1, to get light color version.
#
# set on profile:
#   export PS1="\e[0;31m[\u@\h \W]\$ \e[m"
#
# * Put \[ and \] around any color codes so that bash does not
#   take them into account when calculating line wraps. Also you
#   can make use of the 'tput' command to have this work in any
#   terminal as long as the 'TERM' is set correctly. For instance
#   '$(tput setaf 1)' and '$(tput sgr0)'

# LDR: Never able to get 'tput' to work, YMMV.

set -a # Export all variables

# All Work:

#   Today’s date and hostname:
#   $ PS1="\d \h $ "

#   PS1="\[\e]0;\w\a\]\n\[\e[32m\]\u@\h \[\e[33m\]\w\[\e[0m\]\n\$(date '+%Y-%m-%d %a %r') \n$ "
#   PS1="\[\e]0;\w\a\]\n\[\e[32m\][\u@\h] \[\e[33m\][\w]\[\e[0m\]\n\$(date '+%Y-%m-%d %a %r') \n$ "
#   PS1="\[\e]0;\w\a\]\n\[\e[32m\][\u@\h] \[\e[36m\][\w]\[\e[0m\]\n\$(date '+%Y-%m-%d %a %r') \n$ "
#   PS1="\[\e]0;\w\a\]\n\[\e[32m\][\u@\h] \[\e[36m\][\w]\[\e[0m\]\n\e[1;31m \$(date '+%Y-%m-%d %a %r')\n\e[m$ "

# Note: if you don't escape the '$' in the subexpression '\$(date...',
#       it only computes the date/time at the time the prompt is
#       set, NOT on each prompt generated

PS1="\[\e]0;\w\a\]\n\[\e[1;32m\][\u@\h] \[\e[1;36m\][\w]\[\e[0m\]\n\e[1;31m \$(date '+%Y-%m-%d, %H:%M:%S')\n\e[m$ "

# For debugging with bashdb:

PS4='(${BASH_SOURCE}:${LINENO}): ${FUNCNAME[0]} - [${SHLVL},${BASH_SUBSHELL}, $?]'