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# Don't do anything if not running interactively.
[[ -z "$PS1" ]] && return
# Use vi as my text editor.
export EDITOR=vi
# Keep plenty of history.
unset HISTFILESIZE
HISTSIZE=1000000
# Ignore duplicate commands and whitespace in history.
HISTCONTROL=ignoreboth
# Keep the times of the commands in history.
HISTTIMEFORMAT='%F %T '
# Add history entries directly.
PROMPT_COMMAND="history -a; ${PROMPT_COMMAND}"
# Don't check for mail all the time, it's irritating.
unset MAILCHECK
# Autocorrect fudged paths in cd calls.
shopt -s cdspell &>/dev/null
# Update columns and rows if window size changes.
shopt -s checkwinsize &>/dev/null
# Put multi-line commands onto one line of history.
shopt -s cmdhist &>/dev/null
# Autocorrect fudged paths during completion.
shopt -s dirspell &>/dev/null
# Include dotfiles in pattern matching.
shopt -s dotglob &>/dev/null
# Enable advanced pattern matching.
shopt -s extglob &>/dev/null
# Enable double-starring paths.
shopt -s globstar &>/dev/null
# Append rather than overwrite Bash history.
shopt -s histappend &>/dev/null
# Never beep at me.
hash setterm &>/dev/null && setterm -bfreq 0
# Turn off annoying and useless flow control keys.
hash stty &>/dev/null && stty -ixon
# Use completion, if available.
[[ -e /etc/bash_completion ]] && source /etc/bash_completion
# SSH agent setup, if available.
[[ -e "${HOME}/.ssh/agent" ]] && source "${HOME}/.ssh/agent"
# If we're using an xterm, force 256 colors.
[[ "$TERM" == xterm* ]] && TERM=xterm-256color
# Figure out how many colors we have.
hash tput && COLORS=$(tput colors)
# If we have a color terminal, we'll use color for ls and grep.
if [[ $COLORS -ge 8 ]]; then
hash dircolors &>/dev/null && eval "$(dircolors -b)"
if ls --help | grep -- --color &>/dev/null; then
LS_OPTS="${LS_OPTS} --color=auto"
fi
if grep --help | grep -- --color &>/dev/null; then
GREP_OPTS="${GREP_OPTS} --color=auto"
fi
fi
# Set up more options for grep; exclude version control files.
if ls --help | grep -- --exclude &>/dev/null; then
for PATTERN in .git .gitignore .gitmodules; do
GREP_OPTS="${GREP_OPTS} --exclude=${PATTERN}"
done
fi
if grep --help | grep -- --exclude-dir &>/dev/null; then
for PATTERN in .cvs .git .hg .svn; do
GREP_OPTS="${GREP_OPTS} --exclude-dir=${PATTERN}"
done
fi
# Uncolored bits of my prompt, we'll color them if appropriate shortly.
PS1='[\u@\h:\w]\$'
# Save some color codes based on our colour space.
if [[ $COLORS -ge 256 ]]; then
COLOR_ROOT='\[\e[38;5;9m\]'
COLOR_USER='\[\e[38;5;10m\]'
COLOR_UNDO='\[\e[0m\]'
elif [[ $COLORS -ge 8 ]]; then
COLOR_ROOT='\[\e[1;31m\]'
COLOR_USER='\[\e[1;32m\]'
COLOR_UNDO='\[\e[0m\]'
else
COLOR_ROOT=
COLOR_USER=
COLOR_UNDO=
fi
# Change prompt color depending on whether I'm root or not.
if [[ $EUID -eq 0 ]]; then
PS1=${COLOR_ROOT}${PS1}${COLOR_UNDO}
else
PS1=${COLOR_USER}${PS1}${COLOR_UNDO}
fi
# Add space suffice to prompt.
PS1="${PS1} "
# Set window titles in various terminals.
case "$TERM" in
screen*) PS1='\[\ek\h\e\\\]'${PS1};;
xterm*) PS1='\[\e]0;\h\a\]'${PS1};;
esac
# Alias ls and grep with the options we've collected.
alias ls="ls ${LS_OPTS}"
alias grep="grep ${GREP_OPTS}"
# Protect innocent MySQL databases from my stupidity.
alias mysql='mysql --safe-updates'
# I always do this, and I hate slow train.
alias sl='ls'
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