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Bash Configuration

Table of Contents

~/.bashrc

If not running interactively, don’t do anything

[[ $- != *i* ]] && return

Bash Completion

[ -r /usr/share/bash-completion/bash_completion ] && . /usr/share/bash-completion/bash_completion

FZF

source /usr/share/fzf/key-bindings.bash

Ignore case for auto-completion

bind "set completion-ignore-case on"
bind "set show-all-if-ambiguous on"

Use Color

use_color=true

Some config

# Unset some variables
unset use_color safe_term match_lhs sh

# Allow local processes with root privileges to connect to the locally running X server
xhost +local:root > /dev/null 2>&1

# Autocomplete sudo commands
complete -cf sudo

# Line wrap on window resize
shopt -s checkwinsize

# Enable history expansion with space
# E.g. typing !!<space> will replace the !! with your last command
bind Space:magic-space

# Expand Aliases
shopt -s expand_aliases

# Auto "cd" when entering just a path
shopt -s autocd

# Enable history appending instead of overwriting
shopt -s histappend

# Save multi-line commands as one command
shopt -s cmdhist

Prompt - PS1

export PS1="\[$(tput bold)\]\[$(tput setaf 1)\][\[$(tput setaf 3)\]\u\[$(tput setaf 2)\]@\[$(tput setaf 4)\]\h \[$(tput setaf 5)\]\W\[$(tput setaf 1)\]]\[$(tput setaf 7)\]\\$ \[$(tput sgr0)\]"

Rebind up and down arrow keys to search through bash history

bind '"\e[A": history-search-backward'
bind '"\e[B": history-search-forward'

Aliases

Better defaults for some commands

alias ls='ls -hN --color=auto --group-directories-first'
alias grep='grep --colour=auto'
alias cp="cp -i"     # confirm before overwriting something
alias df='df -h'     # human-readable sizes
alias free='free -m' # show sizes in MB
alias mutt="neomutt"
alias tmux='tmux -f $XDG_CONFIG_HOME/tmux/tmux.conf'

One letter aliases

alias r="ranger"
alias t="tmux"
alias v="nvim"
alias sv='sudo -E nvim'
alias g="git"
alias m="neomutt"
alias o="xdg-open"

Neovim

command -v nvim >/dev/null && alias vim="nvim" vimdiff="nvim -d" # Use neovim for vim if present.

Vim-like

alias :q=exit
alias :e=nvim

Print each PATH entry on a separate line

alias path='echo -e ${PATH//:/\\n}'

Functions

colors - Display colors

colors() {
    local fgc bgc vals seq0

    printf "Color escapes are %s\n" '\e[${value};...;${value}m'
    printf "Values 30..37 are \e[33mforeground colors\e[m\n"
    printf "Values 40..47 are \e[43mbackground colors\e[m\n"
    printf "Value  1 gives a  \e[1mbold-faced look\e[m\n\n"

    # foreground colors
    for fgc in {30..37}; do
        # background colors
        for bgc in {40..47}; do
            fgc=${fgc#37} # white
            bgc=${bgc#40} # black

            vals="${fgc:+$fgc;}${bgc}"
            vals=${vals%%;}

            seq0="${vals:+\e[${vals}m}"
            printf "  %-9s" "${seq0:-(default)}"
            printf " ${seq0}TEXT\e[m"
            printf " \e[${vals:+${vals+$vals;}}1mBOLD\e[m"
        done
        echo; echo
    done
}

tre - Tree display

tre is a shorthand for tree with hidden files and color enabled, ignoring the .git directory, listing directories first. The output gets piped into less with options to preserve color and line numbers, unless the output is small enough for one screen. 

function tre() {
    tree -aC -I '.git|node_modules|bower_components' --dirsfirst "$@" | less -FRNX;
}

mkd - Create a new directory and enter it

function mkd() {
    mkdir -p "$@" && cd "$_";
}

fs - Filesize of directory

function fs() {
    if du -b /dev/null > /dev/null 2>&1; then
        local arg=-sbh;
    else
        local arg=-sh;
    fi
    if [[ -n "$@" ]]; then
        du $arg -- "$@";
    else
        du $arg .[^.]* ./*;
    fi;
}

nullify - Redirect both standard output and standard error, as well as sending to background

function nullify() {
    "$@" >/dev/null 2>&1
}

sms - Send SMS

https://doronbehar.com/articles/using-kdeconnect-to-comfortably-send-sms-messages-from-the-shell/#kdeconnects-builtin-sms-interface 

sms(){
    local args="$@"
    # local phone_number name phone_type
    # khard phone --parsable | sort -u | fzf | IFS=$'\t' read -r phone_number name phone_type
    local phone_number=$(khard phone --parsable | sort -u | fzf | cut -f1 -d$'\t')
    if [[ -z "${phone_number}" ]]; then
        echo No recipient was chosen >&2
        return
    else
        kdeconnect-cli --send-sms "${args}" --destination "${phone_number}" --device 4de3b5de2264a17c
    fi
}

Bash History

Undocumented feature which sets the size to “unlimited”. http://stackoverflow.com/questions/9457233/unlimited-bash-history 

# Huge history. Doesn't appear to slow things down, so why not?
HISTSIZE=500000
HISTFILESIZE=100000

# Avoid duplicate entries
HISTCONTROL="erasedups:ignoreboth"

# Don't record some commands
export HISTIGNORE="&:[ ]*:exit:ls:bg:fg:history:clear"

# Use standard ISO 8601 timestamp
# %F equivalent to %Y-%m-%d
# %T equivalent to %H:%M:%S (24-hours format)
HISTTIMEFORMAT='%F %T '

Change the file location because certain bash sessions truncate .bash_history file upon close. http://superuser.com/questions/575479/bash-history-truncated-to-500-lines-on-each-login 

export HISTFILE=~/.bash_eternal_history

Force prompt to write history after every command. http://superuser.com/questions/20900/bash-history-loss 

PROMPT_COMMAND="history -a; $PROMPT_COMMAND"

~/.bash_profile

[[ -f ~/.profile ]] && . ~/.profile
[[ -f ~/.bashrc ]] && . ~/.bashrc

~/.profile

QT And GTK Themes

export QT_QPA_PLATFORMTHEME="qt5ct"
export GTK2_RC_FILES="$HOME/.gtkrc-2.0"

Gui program to ask for sudo password

export SUDO_ASKPASS=~/.local/bin/askpass-rofi

Gnome Keyring Daemon

Enable the keyring for applications run through the terminal 

if [ -n "$DESKTOP_SESSION" ];then
    eval $(gnome-keyring-daemon --start)
    export SSH_AUTH_SOCK
fi

Export some default applications

export EDITOR="nvim"
export TERMINAL="alacritty"
export BROWSER="qutebrowser"
export READER="zathura"
export FILE="ranger"

Exports

XDG Default

export XDG_CONFIG_HOME="$HOME/.config"

Use Ripgrep for FZF

export FZF_DEFAULT_COMMAND='rg --files --no-ignore --hidden --follow --glob "!.git/*"'
export FZF_DEFAULT_OPTS='--layout=reverse --height=20'

Goland

export GOPATH=$HOME/go

Latex Path

export TEXMFHOME=$HOME/.local/share/texmf

Python Path

export PYTHONPATH="${PYTHONPATH}:/usr/lib/python3.9/site-packages/configobj"

Linkding

export LINKDING_URL=`pass nas/linkding_url`
export LINKDING_TOKEN=`pass nas/linkding_token`

Path

PATH=$HOME/appimages:$PATH
PATH=$HOME/.gem/ruby/2.5.0/bin:$PATH
PATH=$GOPATH:$GOPATH/bin:$PATH
PATH=~/.config/emacs/bin:$PATH
export PATH

Automatically run startx

if [ -z "${DISPLAY}" ] && [ "${XDG_VTNR}" -eq 1 ]; then
    exec startx
fi

~/.inputrc

Completion: 

# Single tab for autocompletion
set show-all-if-ambiguous on

# Ignore case for completion
set completion-ignore-case on

vi mode: 

# VI mode (works in bash and zsh)
set editing-mode vi

# Show which mode (normal or insert)
set show-mode-in-prompt on

# Show the mode by changing the cursor
set vi-ins-mode-string \1\e[6 q\2
set vi-cmd-mode-string \1\e[2 q\2

Key-bindings for vi-mode: 

set keymap vi-command
# these are for vi-command mode
Control-l: clear-screen
Control-a: beginning-of-line
Control-e: end-of-line
Control-w: "\C-aisudo \C-e"

set keymap vi-insert
# these are for vi-insert mode
Control-l: clear-screen
Control-a: beginning-of-line
Control-e: end-of-line
Control-w: "\C-asudo \C-e"

Colorized completion 

# Color files by types
set colored-stats On
# Append char to indicate type
set visible-stats On
# Mark symlinked directories
set mark-symlinked-directories On
# Color the common prefix
set colored-completion-prefix On
# Color the common prefix in menu-complete
set menu-complete-display-prefix On

Don’t echo ^C after Ctrl+C is pressed. 

set echo-control-characters off

Author: Dehaeze Thomas

Created: 2021-11-03 mer. 10:59