.bashrc

#!/usr/bin/env bash
# ~/.bashrc: executed by bash(1) for non-login shells.

# =============================================================== #
# PERSONAL $HOME/.bashrc FILE by PMA
# Consolidated from the default lubuntu 20.04 .bashrc and the ff:
# https://tldp.org/LDP/abs/html/sample-bashrc.html
# https://github.com/slomkowski/bash-full-of-colors
# =============================================================== #

#-------------------------------------------------------------
# If not running interactively, don't do anything
#-------------------------------------------------------------
[ -z "$PS1" ] && return

#-------------------------------------------------------------
# Source global definitions (if any)
#-------------------------------------------------------------
if [ -f /etc/bashrc ]; then
      . /etc/bashrc   # --> Read /etc/bashrc, if present.
fi

#-------------------------------------------------------------
# Import Bash Variables
#-------------------------------------------------------------
if [ -f ~/.bashfns ]; then
    . ~/.bashvars
fi

#-------------------------------------------------------------
# don't put duplicate lines in the history. 
# See bash(1) for more options
# ... or force ignoredups and ignorespace
#-------------------------------------------------------------
#HISTCONTROL=ignoredups:ignorespace
HISTCONTROL=ignoreboth
#-------------------------------------------------------------
# append to the history file, don't overwrite it
shopt -s histappend
# for setting history length see HISTSIZE and HISTFILESIZE 
# in bash(1)
HISTSIZE=200
HISTFILESIZE=400

export TIMEFORMAT=$'\nreal %3R\tuser %3U\tsys %3S\tpcpu %P\n'
export HISTIGNORE="&:bg:fg:ll:h"
export HISTTIMEFORMAT="$(echo -e ${BCyan})[%d/%m %H:%M:%S]$(echo -e ${NC}) "
#export HISTCONTROL=ignoredups
#export HOSTFILE=$HOME/.hosts    # Put a list of remote hosts in ~/.hosts

#-------------------------------------------------------------
# check the window size after each command and, if necessary,
# update the values of LINES and COLUMNS.
#-------------------------------------------------------------
shopt -s checkwinsize

#-------------------------------------------------------------
# make less more friendly for non-text input files, 
# see lesspipe(1)
#-------------------------------------------------------------
[ -x /usr/bin/lesspipe ] && eval "$(SHELL=/bin/sh lesspipe)"

#-------------------------------------------------------------
# set variable identifying the chroot you work in 
# (used in the prompt below)
#-------------------------------------------------------------
if [ -z "${debian_chroot}" ] && [ -r /etc/debian_chroot ]; then
    debian_chroot=$(cat /etc/debian_chroot)
fi

#-------------------------------------------------------------
# Some settings
#-------------------------------------------------------------

#set -o nounset     # These  two options are useful for debugging.
#set -o xtrace
alias debug="set -o nounset; set -o xtrace"

ulimit -S -c 0      # Don't want coredumps.
set -o notify
set -o noclobber
set -o ignoreeof

# Enable options:
shopt -s cdspell
shopt -s cdable_vars
shopt -s checkhash
shopt -s checkwinsize
shopt -s sourcepath
shopt -s no_empty_cmd_completion
shopt -s cmdhist
shopt -s histappend histreedit histverify
shopt -s extglob       # Necessary for programmable completion.

# Disable options:
shopt -u mailwarn
unset MAILCHECK        # Don't want my shell to warn me of incoming mail.

#-------------------------------------------------------------
# Welcome Greeting
#-------------------------------------------------------------
#echo -e "${BCyan}This is BASH ${BRed}${BASH_VERSION%.*}${BCyan}\
# - DISPLAY on ${BRed}$DISPLAY${NC}\n"
if [ -x "`which neofetch 2>&1`" ]; then
neofetch;
fishlogin;
neofetch;
fi

date

#-------------------------------------------------------------
# Shell Prompt - for many examples, see:
#       http://www.debian-administration.org/articles/205
#       http://www.askapache.com/linux/bash-power-prompt.html
#       http://tldp.org/HOWTO/Bash-Prompt-HOWTO
#       https://github.com/nojhan/liquidprompt
#-------------------------------------------------------------
# Current Format: [TIME USER@HOST PWD] >
# TIME:
#    Green     == machine load is low
#    Orange    == machine load is medium
#    Red       == machine load is high
#    ALERT     == machine load is very high
# USER:
#    Cyan      == normal user
#    Orange    == SU to user
#    Red       == root
# HOST:
#    Cyan      == local session
#    Green     == secured remote connection (via ssh)
#    Red       == unsecured remote connection
# PWD:
#    Green     == more than 10% free disk space
#    Orange    == less than 10% free disk space
#    ALERT     == less than 5% free disk space
#    Red       == current user does not have write privileges
#    Cyan      == current filesystem is size zero (like /proc)
# >:
#    White     == no background or suspended jobs in this shell
#    Cyan      == at least one background job in this shell
#    Orange    == at least one suspended job in this shell
#
#    Command is added to the history file each time you hit enter,
#    so it's available to all shells (using 'history -a').

# Test connection type:
if [ -n "${SSH_CONNECTION}" ]; then
    CNX=${Green}        # Connected on remote machine, via ssh (good).
elif [[ "${DISPLAY%%:0*}" != "" ]]; then
    CNX=${ALERT}        # Connected on remote machine, not via ssh (bad).
else
    CNX=${BCyan}        # Connected on local machine.
fi

# Test user type:
if [[ ${USER} == "root" ]]; then
    SU=${Red}           # User is root.
elif [[ ${USER} != ${logname} ]]; then
    SU=${BRed}          # User is not login user.
else
    SU=${BCyan}         # User is normal (well ... most of us are).
fi

NCPU=$(grep -c 'processor' /proc/cpuinfo)    # Number of CPUs
SLOAD=$(( 100*${NCPU} ))        # Small load
MLOAD=$(( 200*${NCPU} ))        # Medium load
XLOAD=$(( 400*${NCPU} ))        # Xlarge load

#-------------------------------------------------------------
# Import Bash Functions
#-------------------------------------------------------------
if [ -f ~/.bashfns ]; then
    . ~/.bashfns
fi

#-------------------------------------------------------------
# PROMPT1
#-------------------------------------------------------------
# Now we construct the prompt.
PROMPT_COMMAND="history -a"
case ${TERM} in
  *term | rxvt | linux | xterm-256color )
        PS1="\[\$(load_color)\][\A\[${NC}\] "
        # Time of day (with load info):
        PS1="\[\$(load_color)\][\A\[${NC}\] "
        # User@Host (with connection type info):
        PS1=${PS1}"\[${SU}\]\u\[${NC}\]@\[${CNX}\]\h\[${NC}\] "
        # PWD (with 'disk space' info):
        PS1=${PS1}"\[\$(disk_color)\]\W]\[${NC}\] "
        # Prompt (with 'job' info):
        PS1=${PS1}"\[\$(job_color)\]>\[${NC}\] "
        # Set title of current xterm:
        PS1=${PS1}"\[\e]0;[\u@\h] \w\a\]"
        ;;
    *)
        PS1="(\A \u@\h \W) > " # --> PS1="(\A \u@\h \w) > "
                               # --> Shows full pathname of current dir.
        ;;
esac


#-------------------------------------------------------------
# PROMPT2
#-------------------------------------------------------------
# case "$TERM" in
#     xterm-color|*-256color) color_prompt=yes;;
# esac
# uncomment for a colored prompt, if the terminal has the capability; turned
# off by default to not distract the user: the focus in a terminal window
# should be on the output of commands, not on the prompt
# #force_color_prompt=yes
# if [ -x /usr/bin/tput ] && tput setaf 1 >&/dev/null
# then
# 	# We have color support; assume it's compliant with Ecma-48
# 	# (ISO/IEC-6429). (Lack of such support is extremely rare, and such
# 	# a case would tend to support setf rather than setaf.)
# 	color_prompt=yes
# else
# 	color_prompt=
# fi

# if [ "$color_prompt" = yes ]; then
#     PROMPT_COMMAND=__makePS1
#     PS2="\[${BPurple}\]>\[${Color_Off}\] " # continuation prompt
# else
#     PS1='${debian_chroot:+($debian_chroot)}\u@\h:\w\$ '
# fi
# unset color_prompt force_color_prompt
#-------------------------------------------------------------

# enable color support of ls and also add handy aliases
if [ -x /usr/bin/dircolors ]; then
    test -r ~/.dircolors && eval "$(dircolors -b ~/.dircolors)" || eval "$(dircolors -b)"

    alias ls='ls --color=auto'
    #alias dir='dir --color=auto'
    #alias vdir='vdir --color=auto'

    alias grep='grep --color=auto'
    alias fgrep='fgrep --color=auto'
    alias egrep='egrep --color=auto'
fi


#-------------------------------------------------------------
# Alias definitions.
# You may want to put all your additions into a separate file like
# ~/.bash_aliases, instead of adding them here directly.
# See /usr/share/doc/bash-doc/examples in the bash-doc package.
#-------------------------------------------------------------
if [ -f ~/.bash_aliases ]; then
    . ~/.bash_aliases
fi

if [ -f ~/.bash_local ]; then
    . ~/.bash_local
fi

#-------------------------------------------------------------
# See https://www.cyberciti.biz/tips/understanding-linux-unix-umask-value-usage.html
#-------------------------------------------------------------
# -- if normal user umask
umask 002
# -- if root umask
# umask 022

if [ -d "$HOME/bin" ] ; then
    PATH="$HOME/bin:$PATH"
fi

# enable programmable completion features (you don't need to enable
# this, if it's already enabled in /etc/bash.bashrc and /etc/profile
# sources /etc/bash.bashrc).
if ! shopt -oq posix; then
  if [ -f /usr/share/bash-completion/bash_completion ]; then
    . /usr/share/bash-completion/bash_completion
  elif [ -f /etc/bash_completion ]; then
    . /etc/bash_completion
  fi
fi
source "$HOME/.cargo/env"