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.bashrc
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#!/usr/bin/env bash
#
# 888 888
# 888 888
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# 88888b. 8888b. .d8888b 88888b. 888d888 .d8888b
# 888 "88b "88b 88K 888 "88b 888P" d88P"
# 888 888 .d888888 "Y8888b. 888 888 888 888
# d8b 888 d88P 888 888 X88 888 888 888 Y88b.
# Y8P 88888P" "Y888888 88888P' 888 888 888 "Y8888P
#
# -------------------------------------------------------------------------
# Version: 0.1
# File: .bashrc
# Source: https://github.com/devpunks
# Author: Ahmid-Ra (github.com/snuggs)
# Maintainer: devPunks <https://github.com/devpunks>
# Description: Bourne Again SHell Run Commands for interactive $SHELL
# -------------------------------------------------------------------------
#
# INVOCATION
# - https://superuser.com/a/183980
# - https://stackoverflow.com/q/9953005
# - https://unix.stackexchange.com/q/43953
# - Sample .bashrc - https://tldp.org/LDP/abs/html/sample-bashrc.html
# - https://gnu.org/software/bash/manual/html_node/Bash-Startup-Files.html
#
# - GNU `coreutils`
# - https://en.m.wikipedia.org/wiki/GNU_Core_Utilities
# - https://en.m.wikipedia.org/wiki/List_of_GNU_Core_Utilities_commands
#
# - OSC 52 base64 remote clipboard
# - https://chromium.googlesource.com/apps/libapps/+/master/hterm/etc/osc52.sh
#
# - Variables
# - https://askubuntu.com/q/26318
# - https://gnu.org/software/bash/manual/html_node/Bash-Variables.html
# - https://gnu.org/software/grep/manual/html_node/Environment-Variables.html
# - https://cyberciti.biz/faq/linux-list-all-environment-variables-env-command/
# - https://web.archive.org/web/20170713001430/http://sc.tamu.edu/help/general/unix/vars.html
# - Subshell Processes
# - https://unix.stackexchange.com/a/442704
# - Coprocess - https://gnu.org/software/bash/manual/html_node/Coprocesses.html
# - Grouping - https://gnu.org/software/bash/manual/html_node/Command-Grouping.html
# - Process Substitution - https://gnu.org/software/bash/manual/html_node/Process-Substitution.html
# - Execution Environment - https://gnu.org/software/bash/manual/html_node/Command-Execution-Environment.html
#
#==========================================================================
# {{{ Imports
#==========================================================================
# [[ -z "$PS1" ]] && exit # https://tldp.org/HOWTO/Bash-Prompt-HOWTO/setps.html
# https://stackoverflow.com/q/42757236/what-does-mean-in-bash
echo "SHELL OPTION FLAGS (see set --help) 👉" $- # TODO: echo post load
# [[ $- != *i* ]] # Check for interactive
# Readline
# [ -e "$HOME/.inputrc" ] && source "$HOME/.inputrc"
# Colors
# shellcheck source-path=.
[ -e "$HOME/.colors" ] && source "$HOME/.colors"
# (R)un (C)ommands - https://superuser.com/q/144339
# for rc in `find ~/*.{ba}sh{rc} -maxdepth 1 -type f`; do
# echo Sourcing ~/.bash run commands \(where available\)
# source $rc
# done
# }}}
#==========================================================================
# {{{ Exports
#==========================================================================
export PG_CONFIG="${PREFIX}/bin/pg_config"
export EDITOR=vi
export PAGER=most
export VISUAL=$EDITOR
# https://dev.gnupg.org/T3412
# https://wiki.archlinux.org/title/GnuPG#pinentry
# https://gnupg.org/documentation/manuals/gnupg/Invoking-GPG_002dAGENT.html
export GPG_TTY=$(tty) # https://github.com/keybase/keybase-issues/issues/2798
export GIT_TRACE=1 # tracing
export GIT_PAGER=$PAGER
export GIT_EDITOR=$EDITOR
export GIT_CONFIG_NOSYSTEM=true # Disable systemwide (etc/gitconfig)
# -h(eader) -l(ong) -t(itle) -v(erbose) -z(comment)
export ZIPINFO='-h -l -t -v -z'
export ZIPINFOOPT="${ZIPINFO}"
# See man unzip TIPS section
# -a(convert text files) -f(reshen)
# -L(owercase systems) -l(ist) -u(pdate or create)
export UNZIP='-a -L -u'
export UNZIPOPT="${UNZIP}"
# https://unix.stackexchange.com/q/27588
# https://unix.stackexchange.com/q/640495
export IGNOREEOF=10 # set -o ignoreeof # For CTRL-D logout attempt frequency
# https://gnu.org/software/bash/manual/html_node/Bash-Variables.html#index-HOSTFILE
export HOSTFILE="${HOME}/.hosts"
# https://gnu.org/software/bash/manual/html_node/Bash-Variables.html#index-INPUTRC
export INPUTRC="${HOME}/.inputrc"
# https://baeldung.com/linux/bash-calculate-time-elapsed
# https://cyberciti.biz/faq/unix-linux-time-command-examples-usage-syntax/
export TIMEFORMAT=$'\n⌛real %3R seconds\tuser %3U\tsys %3S\tpcpu %P\n'
export TZ='Etc/UTC' # https://gnu.org/software/libc/manual/html_node/TZ-Variable.html
export CRON_TZ=${TZ} # https://devicetests.com/set-timezone-crontab
unset PATH
PATH="$HOME"
[ -d "$HOME/bin" ] && PATH="${PATH}:${HOME}/bin"
[ -d "$HOME/local/bin" ] && PATH="${PATH}:${HOME}/local/bin"
if [ -n "$PREFIX" ]; then # TERMUX
unset LD_LIBRARY_PATH
echo "FOUND $PREFIX ON TERMUX"
# https://askubuntu.com/q/386629
PATH=".:${PATH}:${PREFIX}/bin"
# https://wiki.termux.com/wiki/Differences_from_Linux
# uptime/htop
# - https://github.com/termux/termux-app/issues/819
# - https://site24x7.com/learn/linux/uptime.html
# Prior to Android 7
# export LD_LIBRARY_PATH="/system/bin/uptime:$PREFIX/bin/uptime"
fi
export CDPATH=".:${HOME}" # https://theunixschool.com/2012/04/what-is-cdpath.html
export GLOBIGNORE=. # see shopt -s dotglob - https://gnu.org/software/bash/manual/html_node/Filename-Expansion.html
# TIME_STYLE [FORMAT,locale,iso,long-iso,full-iso]
# SIZE -
# The SIZE argument is an integer and optional unit (example: 10K is 10*1024).
# Units are K,M,G,T,P,E,Z,Y,R,Q (powers of 1024) or KB,MB, (powers of 1000).
# Binary prefixes can be used, too: KiB=K, MiB=M, and so on.
# https://linuxquestions.org/q/slackware-14/the-ls_options-variable-4175464331/
# https://linuxquestions.org/q/slackware-14/anyone-familiar-with-splitvt-4175464327/#post4963357
export LS_OPTIONS='\
--inode --size --escape --context --author --almost-all \
--no-group --group-directories-first --hide-control-chars \
--color=auto --hyperlink=auto --tabsize=0 --width=2 --format=vertical \
--block-size=MiB --time-style=long-iso --indicator-style=classify --classify=auto --human-readable'
# TODO: Deprecate
# - https://stackoverflow.com/q/31156517
# - https://stackoverflow.com/q/42138844/remove-line-number-option-from-grep#comment113769544_64338090
export GREP_OPTIONS="--context=1 --color=auto --exclude=.bash_history \
--dereference-recursive --ignore-case --no-messages --line-number --with-filename \
--directories=recurse --devices=skip --binary-files=without-match --label=' \$STDIN ⇉ ' \
--group-separator=☰☰☰☰☰☰☰☰☰☰☰☰☰☰☰☰☰☰☰☰☰☰☰☰☰☰☰☰☰☰☰☰☰☰☰☰☰☰☰☰☰☰☰☰☰☰☰☰☰☰☰☰☰☰☰☰☰☰☰☰☰☰☰☰☰☰☰☰☰ \
--exclude-dir={.cache,.config,.git,.gnupg,.npm,.ssh,.vim,log,logs,node_modules,storage,tmp}"
# }}}
#==========================================================================
# {{{ Locale
# - https://superuser.com/a/1779369
# - https://github.com/termux/termux-packages/issues/3009
# - https://github.com/termux/termux-packages/issues/2796#issuecomment-424589888
# - https://gnu.org/software/gettext/manual/html_node/The-LANGUAGE-variable.html
# - https://gnu.org/software/gettext/manual/html_node/Setting-the-POSIX-Locale.html
#==========================================================================
export LANG=en_US.UTF-8 # Locale override
export LANGUAGE=en:fr:de # LC_MESSAGES Override
export LC_ALL=$LANG
# LC_TIME
# LC_CTYPE
# LC_COLLATE
# LC_NUMERIC
# LC_MONETARY
# LC_MESSAGES # Overridden by `LANGUAGE`
# }}}
# =========================================================================
# {{{ Terminal
# tty - https://linusakesson.net/programming/tty
# stty - https://computerhope.com/unix/ustty.htm
# setterm
# - setterm --reverse on # reverse terminal coloring
# - https://man7.org/linux/man-pages/man1/setterm.1.html
# tput
# - https://manpages.ubuntu.com/manpages/jammy/man1/tput.1.html
# - tput - https://linuxcommand.org/lc3_adv_tput.php
# ncurses
# - https://en.m.wikipedia.org/wiki/Ncurses
# - https://en.m.wikipedia.org/wiki/Curses_(programming_library)
#==========================================================================
tput init
setterm --resize # Sync kernel terminal driver to display
# PLEASE NOTE:
# Inside tmux TERM must be "screen", "tmux" "tmux-256color"
# Outside, it should match your terminal
# https://github.com/tmux/tmux/wiki/FAQ#what-is-term-and-what-does-it-do
export TERM='xterm-256color'
export TERMINFO=$( infocmp -D ) # terminfo database
# Software Flow Control
# - https://unix.stackexchange.com/q/515252
# - https://unix.stackexchange.com/q/12107
# - https://en.m.wikipedia.org/wiki/Software_flow_control
# - https://bugs.launchpad.net/ubuntu/+source/bash/+bug/80635
# - https://sites.ualberta.ca/dept/chemeng/AIX-43/share/man/info/C/a_doc_lib/cmds/aixcmds5/stty.htm
# prevent C-s. (C-q to resume) - https://catonmat.net/annoying-keypress-in-linux
stty stop undef # Undefine STOP character
stty start undef # Undefine START character
stty -ixon # Disable XON/XOFF output control
stty -ixoff # Disable sending START/STOP characters
stty -ixany # Disable any key to resume (not just START)
stty -ctlecho # Stop echo - https://stackoverflow.com/q/418073
# TERMUX nCurses- https://stackoverflow.com/q/76148896
if [[ "$( tic -V )" == *"ncurses"* ]]; then
export CURSES_CFLAGS="-I${PREFIX}/include"
export CURSES_LDFLAGS="-L${PREFIX}/lib -lncurses"
# https://stackoverflow.com/q/1780483
export LINES=$( tput lines )
export COLUMNS=$( tput columns )
# write tty terminal size
printf "\n\n 💻 TTY SIZE: %s \n " \
"$( stty size | tr ' ' 'x' )"
# Check the window size after each command.
# If necessary, Update the values of LINES and COLUMNS.
# Correct line-wrapping-over-prompt issues when a window is resized.
shopt -s checkwinsize # https://reddit.com/r/bash/comments/88tt7i
fi
# }}}
#==========================================================================
# {{{ Options
# - https://unix.stackexchange.com/q/32409/set-and-shopt-why-two/32446
#==========================================================================
# set options -------------------------------------------------------------
# https://tldp.org/LDP/abs/html/options.html
# https://gist.github.com/vncsna/64825d5609c146e80de8b1fd623011ca
# https://gnu.org/software/bash/manual/html_node/The-Set-Builtin.html
set -o notify # terminated background jobs to be reported immediately
set -o noclobber # Prevent redirection '>' from overwriting existing files
# shell options -------------------------------------------------------
# https://gnu.org/software/bash/manual/html_node/The-Shopt-Builtin.html
# https://linuxhint.com/how-to-customize-a-bash-shell-with-the-shopt-command
# TODO: fix for macOS
shopt -s extglob # Extended glob pattern matching
shopt -s dirspell # https://linux.101hacks.com/cd-command/shopt-s-cdspell/
shopt -s direxpand # https://stackoverflow.com/q/6438341/what-does-shopt-s-dirspell-do
shopt -s dotglob # https://unix.stackexchange.com/q/40662
# https://unix.stackexchange.com/q/700199
shopt -s globstar # https://linuxjournal.com/content/globstar-new-bash-globbing-option
# shopt –s xpg_echo # https://stackoverflow.com/q/13517818/bash-shopt-xpg-echo
shopt -s cdspell # https://linux.101hacks.com/cd-command/shopt-s-cdspell
shopt -s nullglob # expand glob to empty list
shopt -s mailwarn # last access on login
shopt -s xpg_echo # expand escapes in echo string
shopt -s checkjobs # confirm job status list on exit
shopt -s checkhash # command exists in hashtable first
shopt -s nocaseglob # https://stackoverflow.com/q/25331100/bash-match-string-with-regex
shopt -s nocasematch # https://baeldung.com/linux/shell-case-insensitive-matching
shopt -s cdable_vars # Change directory with shell vars
shopt -s hostcomplete # https://blog.sanctum.geek.nz/bash-hostname-completion
shopt -s shift_verbose # `shift` out of range error message
shopt -s no_empty_cmd_completion # on empty line attempts
# }}}
#==========================================================================
# {{{ History
# - https://superuser.com/q/788428
# - https://gnu.org/software/bash/manual/html_node/Bash-History-Builtins.html
# - Reverse Search
# - https://gnu.org/software/emacs/manual/html_node/emacs/Basic-Isearch.html
# - https://gnu.org/software/bash/manual/html_node/Commands-For-History.html
# - https://superuser.com/q/472846/how-to-reverse-i-search-back-and-forth
# - https://codeburst.io/use-reverse-i-search-to-quickly-navigate-through-your-history-917f4d7ffd37
#==========================================================================
shopt -s histappend
shopt -s histverify
export HISTSIZE=1000
export HISTFILESIZE=1000
export HISTFILE="${HOME}/.bash_history"
export HISTTIMEFORMAT="%d/%m/%y %T - "
export HISTIGNORE=bg:fg:exit:cd:ls:pwd:echo
# https://google.com/amp/s/geeksforgeeks.org/histcontrol-command-in-linux-with-examples/amp/
# https://unix.stackexchange.com/q/18212/bash-history-ignoredups-and-erasedups-setting-conflict-with-common-history
export HISTCONTROL=ignoredups:ignorespace:erasedups # ignoreboth
export PROMPT_COMMAND="history -n; history -w; history -c; history -r;"
# more, less, most - https://askubuntu.com/q/1191862
# - https://linux.die.net/man/1/lesskey
# - https://manpages.ubuntu.com/manpages/bionic/en/man1/most.1.html
# - https://ascending.wordpress.com/2011/02/11/unix-tip-make-less-more-friendly/
export LESSHISTSIZE=0
export LESSHISTFILE=- # /dev/null
export LESSKEY="" # https://man7.org/linux/man-pages/man1/lesskey.1.html
# }}}
#==========================================================================
# {{{ Cursor / Prompt
#
# cursor ------------------------------------------------------------------
# echo -ne '[5;0;0 q' see .inputrc
# echo -ne ']12;#FF0000\x7'
# prompt ------------------------------------------------------------------
# Shell Prompt - for many examples, see:
# - https://bash-prompt-generator.org
# - https://github.com/nojhan/liquidprompt
# - https://askubuntu.com/q/409599
# - http://tldp.org/HOWTO/Bash-Prompt-HOWTO
# - http://debian-administration.org/articles/205
# - http://askapache.com/linux/bash-power-prompt.html
# - https://wiki.archlinux.org/title/Bash/Prompt_customization
# - https:/gnu.org/software/bash/manual/html_node/Controlling-the-Prompt.html
# - https://unix.stackexchange.com/qs/105958/terminal-prompt-not-wrapping-correctly
# - https://cyberciti.biz/faq/bash-shell-change-the-color-of-my-shell-prompt-under-linux-or-unix/
# - https://unix.stackexchange.com/q/611419/how-does-the-escape-character-work-in-bash-prompt
#
#=========================================================================
tput smam # tput rmam to disable - http://heyrod.com/snippets/toggle-line-wrapping-in-terminal.html
export PROMPT_DIRTRIM=3 # https://stackoverflow.com/qs/5687446
PS_RESET="\[${DEFAULT}${NORMAL}${NORMAL_BG}\e[m\]"
PS_PROMPT='$( prompts )'
PS_EXIT='$( exitstatus )'
PS_CHEVRON="\[${BOLD}\]❭〉$PS_RESET"
PS_JOBS="\[${REVERSE}${BOLD}\] 🔧\j $PS_RESET"
PS_TIME="\[${ITALIC}${UNDERLINE}\]⏳XX secs.$PS_RESET "
PS_CLOCK="\[${REVERSE}${ITALIC}\]⌚\D{%H:%M:%S} $PS_RESET"
PS_PATH="\[${BOLD}${REVERSE}\]📂\[${ITALIC}\]\w/$PS_RESET"
PS_GIT='$( __git_ps1 '\\[${REVERSE}\\]【🌵%s】$RESET' )'
PS0="\[$( tput sitm )\]Running command:$PS_RESET ⌛$( command date '+%T' )\n"
PS1=$"${PS_EXIT}${PS_CHEVRON}${PS_TIME}${PS_JOBS}${PS_CLOCK}${PS_PATH}${PS_GIT}\\[${REVERSE}\\]${PS_PROMPT}${PS_RESET}"
PS2='⋯ ➡' # Nested shell levels
PS3='Select：' # Select prompts
PS4='➕ ' # Verbose prompt tracing
# }}}
#==========================================================================
# {{{ FUNCTIONS
# - https://tldp.org/LDP/abs/html/functions.html
# - https://cuddly-octo-palm-tree.com/posts/2021-10-31-better-bash-functions/
#=========================================================================
function prompts () {
for (( i = 1 ; i <= SHLVL ; i++ )); do
printf '💲'
done
} && export -f prompts
# https://baeldung.com/linux/status-codes
function exitstatus () {
local -r status=$?
[[ $status == 0 ]] && \
echo " ✅ $status "
[[ ${status} != 0 ]] && \
echo " ❌ $status "
} && export -f exitstatus
# }}}
echo 'devPunks😈studio .bashrc'
echo
# vim: foldmethod=marker