dotfiles/config/shell/README.org

Shell

• Bash
• Profile

ln -s ~/.local/source/dotfiles/config/shell/bashrc ~/.bashrc
ln -s ~/.local/source/dotfiles/config/shell/profile ~/.profile

Bash

Executed by bash for non-login shells. See /usr/share/doc/bash/examples/startup-files (in the package bash-doc) for examples.

If not running interactively, don't do anything.

case $- in
    *i*) ;;
      *) return;;
esac

Don't put duplicate lines or lines starting with space in the history.

HISTCONTROL=ignoreboth

Append to the history file, don't overwrite it.

shopt -s histappend

For setting history length see HISTSIZE and HISTFILESIZE.

HISTSIZE=1000
HISTFILESIZE=2000

Check the window size after each command and, if necessary, update the values of LINES and COLUMNS.

shopt -s checkwinsize

If set, the pattern "**" used in a pathname expansion context will match all files and zero or more directories and subdirectories.

#shopt -s globstar

Make less more friendly for non-text input files.

[ -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

Set a fancy prompt (non-color, unless we know we "want" color).

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 we have color support; assume it's compliant with Ecma-48 (ISO/IEC-6429).

if [ -n "$force_color_prompt" ]; then
    if [ -x /usr/bin/tput ] && tput setaf 1 >&/dev/null; then
	color_prompt=yes
    else
	color_prompt=
    fi
fi

Lack of such support is extremely rare, and such a case would tend to support setf rather than setaf.

if [ "$color_prompt" = yes ]; then
    PS1='${debian_chroot:+($debian_chroot)}\[\033[01;32m\]\u@\h\[\033[00m\]:\[\033[01;34m\]\w\[\033[00m\]\$ '
else
    PS1='${debian_chroot:+($debian_chroot)}\u@\h:\w\$ '
fi
unset color_prompt force_color_prompt

If this is an xterm set the title to user@host:dir.

case "$TERM" in
xterm*|rxvt*)
    PS1="\[\e]0;${debian_chroot:+($debian_chroot)}\u@\h: \w\a\]$PS1"
    ;;
*)
    ;;
esac

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

Colored GCC warnings and errors.

#export GCC_COLORS='error=01;31:warning=01;35:note=01;36:caret=01;32:locus=01:quote=01'

Some more ls aliases.

alias ll='ls -alF'
alias la='ls -A'
alias l='ls -CF'

Add an alert alias for long running commands.

alias alert='notify-send --urgency=low -i "$([ $? = 0 ] && echo terminal || echo error)" "$(history|tail -n1|sed -e '\''s/^\s*[0-9]\+\s*//;s/[;&|]\s*alert$//'\'')"'

Use like so:

sleep 10; alert

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

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

Profile

Executed by the command interpreter for login shells.

This file is not read by bash, if ~/.bash_profile or ~/.bash_login exists. See /usr/share/doc/bash/examples/startup-files for examples. The files are located in the bash-doc package.

The default umask is set in /etc/profile. For SSH logins, install and configure the libpam-umask package.

#umask 022

If we're running bash make sure to include ~/.bashrc if it exists.

if [ -n "$BASH_VERSION" ]; then
    if [ -f "$HOME/.bashrc" ]; then
	. "$HOME/.bashrc"
    fi
fi

Add private bin directories to the $PATH (if they exist).

• $HOME/bin

• $HOME/.local/bin

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

Add $HOME/go/bin to the $PATH if it exists.

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

Auto run startx on login if there's no display server running.

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