literate-dotfiles/dotfiles/bash.org

Bash Configuration

• Bashrc
  • What does that do?
  • Bash Completion
  • Ignore case for autocompletion
  • Use Color
  • Set colorful PS1 only on colorful terminals.
  • Some config
  • Prompt
  • SSH Agent
  • Rebind up and down arrow keys to search through bash history
  • Aliases
    • Better defaults for some commands
    • One letter aliases
    • Neovim
    • Magit
    • Vim-like
    • Print each PATH entry on a separate line
  • Functions
    • Display colors
    • Tree display
    • Create a new directory and enter it
    • Filesize of directory
    • Redirect both standard output and standard error, as well as sending to background
    • Send SMS
  • Bash History
• Bash Profile
• Profile
  • QT And GTK Themes
  • Gui program to ask for sudo password
  • Gnome Keyring Daemon
  • Default
  • Exports
    • Term
    • XDG Default
    • Better yaourt colors
    • Use Ripgrep for FZF
    • Goland
    • Latex Path
  • Path
• Input

Bashrc

What does that do?

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

Bash Completion

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

Ignore case for autocompletion

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

Use Color

  use_color=true
  alias ls='ls -hN --color=auto --group-directories-first'
  alias grep='grep --colour=auto'

Set colorful PS1 only on colorful terminals.

dircolors –print-database uses its own built-in database instead of using /etc/DIR_COLORS. Try to use the external file first to take advantage of user additions. Use internal bash globbing instead of external grep binary.

  safe_term=${TERM//[^[:alnum:]]/?}   # sanitize TERM
  match_lhs=""
  [[ -f ~/.dir_colors   ]] && match_lhs="${match_lhs}$(<~/.dir_colors)"
  [[ -f /etc/DIR_COLORS ]] && match_lhs="${match_lhs}$(</etc/DIR_COLORS)"
  [[ -z ${match_lhs}    ]] \
    && type -P dircolors >/dev/null \
    && match_lhs=$(dircolors --print-database)
  [[ $'\n'${match_lhs} == *$'\n'"TERM "${safe_term}* ]] && use_color=true

  if ${use_color} ; then
    # Enable colors for ls, etc.  Prefer ~/.dir_colors #64489
    if type -P dircolors >/dev/null ; then
      if [[ -f ~/.dir_colors ]] ; then
        eval $(dircolors -b ~/.dir_colors)
      elif [[ -f /etc/DIR_COLORS ]] ; then
        eval $(dircolors -b /etc/DIR_COLORS)
      fi
    fi

    if [[ ${EUID} == 0 ]] ; then
      PS1='\[\033[01;31m\][\h\[\033[01;36m\] \W\[\033[01;31m\]]\$\[\033[00m\] '
    else
      PS1='\[\033[01;32m\][\u@\h\[\033[01;37m\] \W\[\033[01;32m\]]\$\[\033[00m\] '
    fi
  else
    if [[ ${EUID} == 0 ]] ; then
      # show root@ when we don't have colors
      PS1='\u@\h \W \$ '
    else
      PS1='\u@\h \w \$ '
    fi
  fi

Some config

  unset use_color safe_term match_lhs sh

  xhost +local:root > /dev/null 2>&1

  complete -cf sudo

  # Line wrap on window resize
  shopt -s checkwinsize

  shopt -s expand_aliases

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

  # Enable history appending instead of overwriting
  shopt -s histappend

Prompt

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

SSH Agent

# if ! pgrep -u "$USER" ssh-agent > /dev/null; then
#     ssh-agent > "$XDG_RUNTIME_DIR/ssh-agent.env"
# fi
# if [[ ! "$SSH_AUTH_SOCK" ]]; then
#     eval "$(<"$XDG_RUNTIME_DIR/ssh-agent.env")"
# fi

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 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 y="yadm"
  alias o="xdg-open"
  alias x="sxiv -ft *"

Neovim

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

Magit

  # alias magit="emacsclient -create-frame --alternate-editor=\"\" --eval '(magit-status)'"
  alias magit="nvim -c MagitOnly"

Vim-like

  alias :q=exit
  alias :e=nvim

Print each PATH entry on a separate line

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

Functions

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
  }

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;
  }

Create a new directory and enter it

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

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;
  }

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

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

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 "${phone_number}" ]]; then
          echo No recipient was chosen >&2
          return
      else
          # echo "${name}"$'\t'"${phone_number}"$'\t'"${phone_type}" > ${_KDECONNECT_SMS_LAST_RECIPIENT}
          kdeconnect-cli --send-sms "${args}" --destination "${phone_number}" --device 4de3b5de2264a17c
          # kdeconnect-cli --device ${_KDECONNECT_DEFAULT_DEVICE} --send-sms "${args}" --destination "${phone_number}" && \
              # echo sent sms message to ${name} | fribidi
      fi
  }

Bash History

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

  export HISTFILESIZE=
  export HISTSIZE=
  export 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

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

Default

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

Exports

Term

This is important for termite to work when sshing in remote machines.

  export TERM=xterm-color

XDG Default

  export XDG_CONFIG_HOME="$HOME/.config"

Better yaourt colors

  export YAOURT_COLORS="nb=1:pkg=1:ver=1;32:lver=1;45:installed=1;42:grp=1;34:od=1;41;5:votes=1;44:dsc=0:other=1;35"

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

Path

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

Input

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