literate-dotfiles/bash.org

#+TITLE: Bash Configuration
#+SETUPFILE: ./setup/org-setup-file.org

* =~/.bashrc=
:PROPERTIES:
:header-args:bash: :tangle ~/.bashrc
:header-args:bash+: :comments both :mkdirp yes
:CUSTOM_ID: bashrc
:END:

** If not running interactively, don't do anything
#+BEGIN_SRC bash
  [[ $- != *i* ]] && return
#+END_SRC

** Bash Completion
#+BEGIN_SRC bash
  [ -r /usr/share/bash-completion/bash_completion ] && . /usr/share/bash-completion/bash_completion
#+END_SRC

** FZF
#+begin_src bash
  source /usr/share/fzf/key-bindings.bash
#+end_src

** Ignore case for auto-completion
#+BEGIN_SRC bash
  bind "set completion-ignore-case on"
  bind "set show-all-if-ambiguous on"
#+END_SRC

** Use Color
#+BEGIN_SRC bash
  use_color=true
#+END_SRC

** Some config
#+BEGIN_SRC bash
  # 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
#+END_SRC

** Prompt - =PS1=
#+BEGIN_SRC bash
  export PS1="\[$(tput bold)\]\[$(tput setaf 1)\][\[$(tput setaf 3)\]\u\[$(tput setaf 2)\]@\[$(tput setaf 4)\]\h \[$(tput setaf 5)\]\W\[$(tput setaf 1)\]]\[$(tput setaf 7)\]\\$ \[$(tput sgr0)\]"
#+END_SRC

** Rebind up and down arrow keys to search through bash history
#+BEGIN_SRC bash
  bind '"\e[A": history-search-backward'
  bind '"\e[B": history-search-forward'
#+END_SRC

** Aliases
*** Better defaults for some commands
#+BEGIN_SRC bash
  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'
#+END_SRC

*** One letter aliases
#+BEGIN_SRC bash
  alias r="ranger"
  alias t="tmux"
  alias v="nvim"
  alias sv='sudo -E nvim'
  alias g="git"
  alias m="neomutt"
  alias o="xdg-open"
#+END_SRC

*** Neovim
#+begin_src bash
  command -v nvim >/dev/null && alias vim="nvim" vimdiff="nvim -d" # Use neovim for vim if present.
#+end_src

*** Vim-like
#+BEGIN_SRC bash
  alias :q=exit
  alias :e=nvim
#+END_SRC

*** Print each PATH entry on a separate line
#+BEGIN_SRC bash
  alias path='echo -e ${PATH//:/\\n}'
#+END_SRC

** Functions
*** =colors= - Display colors
#+BEGIN_SRC bash
  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
  }
#+END_SRC

*** =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.

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

*** =mkd= - Create a new directory and enter it
#+BEGIN_SRC bash
  function mkd() {
      mkdir -p "$@" && cd "$_";
  }
#+END_SRC

*** =fs= - Filesize of directory
#+BEGIN_SRC bash
  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;
  }
#+END_SRC

*** =nullify= - Redirect both standard output and standard error, as well as sending to background
#+BEGIN_SRC bash
  function nullify() {
      "$@" >/dev/null 2>&1
  }
#+END_SRC

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

#+begin_src bash :tangle no
  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
  }

#+end_src

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

#+BEGIN_SRC bash
  # 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 '
#+END_SRC

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

#+BEGIN_SRC bash
  export HISTFILE=~/.bash_eternal_history
#+END_SRC

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

#+BEGIN_SRC bash
  PROMPT_COMMAND="history -a; $PROMPT_COMMAND"
#+END_SRC

* =~/.bash_profile=
:PROPERTIES:
:header-args:bash: :tangle ~/.bash_profile
:header-args:bash+: :comments both :mkdirp yes
:CUSTOM_ID: bash_profile
:END:

#+BEGIN_SRC bash
  [[ -f ~/.profile ]] && . ~/.profile
  [[ -f ~/.bashrc ]] && . ~/.bashrc
#+END_SRC

* =~/.profile=
:PROPERTIES:
:header-args:bash: :tangle ~/.profile
:header-args:bash+: :comments both :mkdirp yes
:CUSTOM_ID: profile
:END:

** QT And GTK Themes
#+begin_src bash
  export QT_QPA_PLATFORMTHEME="qt5ct"
  export GTK2_RC_FILES="$HOME/.gtkrc-2.0"
#+END_SRC

** Gui program to ask for sudo password
#+begin_src bash
  export SUDO_ASKPASS=~/.local/bin/askpass-rofi
#+END_SRC

** Gnome Keyring Daemon
Enable the keyring for applications run through the terminal
#+begin_src bash
  if [ -n "$DESKTOP_SESSION" ];then
      eval $(gnome-keyring-daemon --start)
      export SSH_AUTH_SOCK
  fi
#+end_src

** Export some default applications
#+begin_src bash
  export EDITOR="nvim"
  export TERMINAL="termite"
  export BROWSER="qutebrowser"
  export READER="zathura"
  export FILE="ranger"
#+END_SRC

** Exports
*** Term
This is important for termite to work when sshing in remote machines.
#+begin_src bash
  export TERM=xterm-color
#+end_src

*** XDG Default
#+begin_src bash
  export XDG_CONFIG_HOME="$HOME/.config"
#+end_src

*** Use Ripgrep for FZF
#+begin_src bash
  export FZF_DEFAULT_COMMAND='rg --files --no-ignore --hidden --follow --glob "!.git/*"'
  export FZF_DEFAULT_OPTS='--layout=reverse --height=20'
#+end_src

*** Goland
#+begin_src bash
  export GOPATH=$HOME/go
#+end_src

*** Latex Path
#+begin_src bash
  export TEXMFHOME=$HOME/.local/share/texmf
#+end_src

*** Bitwarden Session
#+begin_src bash
  export BW_SESSION="HH0yycfocRSuGtq/iW1e6v13PQ1sShMXbMhdb/En94S6OcIXFnJlLEyU+dySsmf2YShY4CImoB5FrxgdPsY9Qw=="
#+end_src

*** Python Path
#+begin_src bash
  export PYTHONPATH="${PYTHONPATH}:/usr/lib/python3.9/site-packages/configobj"
#+end_src

** Path
#+begin_src bash
  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
#+END_SRC

** Automatically run =startx=
#+begin_src bash
  if [ -z "${DISPLAY}" ] && [ "${XDG_VTNR}" -eq 1 ]; then
      exec startx
  fi
#+end_src

* =~/.inputrc=
:PROPERTIES:
:header-args: :tangle ~/.inputrc
:header-args+: :comments both :mkdirp yes
:CUSTOM_ID: inputrc
:END:

Completion:
#+BEGIN_SRC conf
  # Single tab for autocompletion
  set show-all-if-ambiguous on

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

vi mode:
#+BEGIN_SRC conf
  # 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
#+END_SRC

Key-bindings for vi-mode:
#+BEGIN_SRC conf
  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"
#+END_SRC

Colorized completion
#+begin_src conf
  # 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
#+end_src

Don't echo =^C= after =Ctrl+C= is pressed.
#+begin_src conf
  set echo-control-characters off
#+end_src