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November 17, 2016 02:53
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my (old) .bashrc
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# ~/.bashrc: executed by bash(1) 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. | |
# See bash(1) for more options | |
HISTCONTROL=ignoreboth | |
# This snippet causes it to first of all only append changes (instead of overwriting with the whole buffer), and then to cause it to, after every command, write out changes. In effect, you get a live updating .bash_history, so if you start a new terminal, you have all the commands from your other running sessions' history. | |
shopt -s histappend | |
PROMPT_COMMAND='history -a' | |
# History can be very useful, but by default on most distributions your history is blown away by each shell exiting, and it doesn't hold much to begin with. I like to have 10,000 lines of history: | |
export HISTFILESIZE=20000 | |
export HISTSIZE=10000 | |
# Combine multiline commands into one in history | |
shopt -s cmdhist | |
# Ignore duplicates, ls without options and builtin commands | |
HISTCONTROL=ignoredups | |
export HISTIGNORE="&:ls:[bf]g:exit" | |
#------------------------------------------------------------- | |
# Greeting, motd etc. ... | |
#------------------------------------------------------------- | |
# Color definitions (taken from Color Bash Prompt HowTo). | |
# Some colors might look different of some terminals. | |
# For example, I see 'Bold Red' as 'orange' on my screen, | |
# hence the 'Green' 'BRed' 'Red' sequence I often use in my prompt. | |
# Normal Colors | |
Black='\e[0;30m' # Black | |
Red='\e[0;31m' # Red | |
Green='\e[0;32m' # Green | |
Yellow='\e[0;33m' # Yellow | |
Blue='\e[0;34m' # Blue | |
Purple='\e[0;35m' # Purple | |
Cyan='\e[0;36m' # Cyan | |
White='\e[0;37m' # White | |
# Bold | |
BBlack='\e[1;30m' # Black | |
BRed='\e[1;31m' # Red | |
BGreen='\e[1;32m' # Green | |
BYellow='\e[1;33m' # Yellow | |
BBlue='\e[1;34m' # Blue | |
BPurple='\e[1;35m' # Purple | |
BCyan='\e[1;36m' # Cyan | |
BWhite='\e[1;37m' # White | |
# Background | |
On_Black='\e[40m' # Black | |
On_Red='\e[41m' # Red | |
On_Green='\e[42m' # Green | |
On_Yellow='\e[43m' # Yellow | |
On_Blue='\e[44m' # Blue | |
On_Purple='\e[45m' # Purple | |
On_Cyan='\e[46m' # Cyan | |
On_White='\e[47m' # White | |
NC="\e[m" # Color Reset | |
ALERT=${BWhite}${On_Red} # Bold White on red background | |
echo -e "${BPurple}Debian GNU/LINUX BASH ${BRed}${BASH_VERSION%.*}${BPurple}\ - DISPLAY on ${BRed}$DISPLAY${NC}\n" | |
date | |
if [ -x /usr/games/fortune ]; then | |
/usr/games/fortune -s # Makes our day a bit more fun.... :-) | |
fi | |
function _exit() # Function to run upon exit of shell. | |
{ | |
echo -e "${BRed}Hasta la vista, baby${NC}" | |
} | |
trap _exit EXIT | |
#----------------------------------------------------------------------------------------------------------------------- | |
#------------------------------------------------------------- | |
# Shell Prompt - for many examples, see: | |
# http://www.debian-administration.org/articles/205 | |
# http://www.askapache.com/linux/bash-power-prompt.html | |
# http://tldp.org/HOWTO/Bash-Prompt-HOWTO | |
# https://github.com/nojhan/liquidprompt | |
#------------------------------------------------------------- | |
# Current Format: [TIME USER@HOST PWD] > | |
# TIME: | |
# Green == machine load is low | |
# Orange == machine load is medium | |
# Red == machine load is high | |
# ALERT == machine load is very high | |
# USER: | |
# Cyan == normal user | |
# Orange == SU to user | |
# Red == root | |
# HOST: | |
# Cyan == local session | |
# Green == secured remote connection (via ssh) | |
# Red == unsecured remote connection | |
# PWD: | |
# Green == more than 10% free disk space | |
# Orange == less than 10% free disk space | |
# ALERT == less than 5% free disk space | |
# Red == current user does not have write privileges | |
# Cyan == current filesystem is size zero (like /proc) | |
# >: | |
# White == no background or suspended jobs in this shell | |
# Cyan == at least one background job in this shell | |
# Orange == at least one suspended job in this shell | |
# | |
# Command is added to the history file each time you hit enter, | |
# so it's available to all shells (using 'history -a'). | |
# Test connection type: | |
if [ -n "${SSH_CONNECTION}" ]; then | |
CNX=${Green} # Connected on remote machine, via ssh (good). | |
elif [[ "${DISPLAY%%:0*}" != "" ]]; then | |
CNX=${ALERT} # Connected on remote machine, not via ssh (bad). | |
else | |
CNX=${BPurple} # Connected on local machine. | |
fi | |
# Test user type: | |
if [[ ${USER} == "root" ]]; then | |
SU=${Red} # User is root. | |
elif [[ ${USER} != $(logname) ]]; then | |
SU=${BRed} # User is not login user. | |
else | |
SU=${BPurple} # User is normal (well ... most of us are). | |
fi | |
NCPU=$(grep -c 'processor' /proc/cpuinfo) # Number of CPUs | |
SLOAD=$(( 100*${NCPU} )) # Small load | |
MLOAD=$(( 200*${NCPU} )) # Medium load | |
XLOAD=$(( 400*${NCPU} )) # Xlarge load | |
# Returns system load as percentage, i.e., '40' rather than '0.40)'. | |
function load() | |
{ | |
local SYSLOAD=$(cut -d " " -f1 /proc/loadavg | tr -d '.') | |
# System load of the current host. | |
echo $((10#$SYSLOAD)) # Convert to decimal. | |
} | |
# Returns a color indicating system load. | |
function load_color() | |
{ | |
local SYSLOAD=$(load) | |
if [ ${SYSLOAD} -gt ${XLOAD} ]; then | |
echo -en ${ALERT} | |
elif [ ${SYSLOAD} -gt ${MLOAD} ]; then | |
echo -en ${Red} | |
elif [ ${SYSLOAD} -gt ${SLOAD} ]; then | |
echo -en ${BRed} | |
else | |
echo -en ${Green} | |
fi | |
} | |
# Returns a color according to free disk space in $PWD. | |
function disk_color() | |
{ | |
if [ ! -w "${PWD}" ] ; then | |
echo -en ${Red} | |
# No 'write' privilege in the current directory. | |
elif [ -s "${PWD}" ] ; then | |
local used=$(command df -P "$PWD" | | |
awk 'END {print $5} {sub(/%/,"")}') | |
if [ ${used} -gt 95 ]; then | |
echo -en ${ALERT} # Disk almost full (>95%). | |
elif [ ${used} -gt 90 ]; then | |
echo -en ${BRed} # Free disk space almost gone. | |
else | |
echo -en ${Green} # Free disk space is ok. | |
fi | |
else | |
echo -en ${Cyan} | |
# Current directory is size '0' (like /proc, /sys etc). | |
fi | |
} | |
# Returns a color according to running/suspended jobs. | |
function job_color() | |
{ | |
if [ $(jobs -s | wc -l) -gt "0" ]; then | |
echo -en ${BRed} | |
elif [ $(jobs -r | wc -l) -gt "0" ] ; then | |
echo -en ${BPurple} | |
fi | |
} | |
# Adds some text in the terminal frame (if applicable). | |
# Now we construct the prompt. | |
PROMPT_COMMAND="history -a" | |
case ${TERM} in | |
*term | rxvt | linux) | |
PS1="\[\$(load_color)\][\A\[${NC}\] " | |
# Time of day (with load info): | |
PS1="\[\$(load_color)\][\A\[${NC}\] " | |
# User@Host (with connection type info): | |
PS1=${PS1}"\[${SU}\]\u\[${NC}\]@\[${CNX}\]\h\[${NC}\] " | |
# PWD (with 'disk space' info): | |
PS1=${PS1}"\[\$(disk_color)\]\W]\[${NC}\] " | |
# Prompt (with 'job' info): | |
PS1=${PS1}"\[\$(job_color)\]>\[${NC}\] " | |
# Set title of current xterm: | |
PS1=${PS1}"\[\e]0;[\u@\h] \w\a\]" | |
;; | |
*) | |
PS1="(\A \u@\h \W) > " # --> PS1="(\A \u@\h \w) > " | |
# --> Shows full pathname of current dir. | |
;; | |
esac | |
export TIMEFORMAT=$'\nreal %3R\tuser %3U\tsys %3S\tpcpu %P\n' | |
export HISTIGNORE="&:bg:fg:ll:h" | |
export HISTTIMEFORMAT="$(echo -e ${BCyan})[%d/%m %H:%M:%S]$(echo -e ${NC}) " | |
export HISTCONTROL=ignoredups | |
export HOSTFILE=$HOME/.hosts # Put a list of remote hosts in ~/.hosts | |
#______________________________________________________________________________________________________________ | |
#------------------------------------------------------------- | |
# Some settings | |
#------------------------------------------------------------- | |
#set -o nounset # These two options are useful for debugging. | |
#set -o xtrace | |
alias debug="set -o nounset; set -o xtrace" | |
ulimit -S -c 0 # Don't want coredumps. | |
set -o notify | |
set -o noclobber | |
set -o ignoreeof | |
# Enable options: | |
shopt -s cdspell | |
shopt -s cdable_vars | |
shopt -s checkhash | |
shopt -s checkwinsize | |
shopt -s sourcepath | |
shopt -s no_empty_cmd_completion | |
shopt -s cmdhist | |
shopt -s histappend histreedit histverify | |
shopt -s extglob # Necessary for programmable completion. | |
# Disable options: | |
shopt -u mailwarn | |
unset MAILCHECK # Don't want my shell to warn me of incoming mail. | |
#------------------------------------------------------------------------------------------------------------------------------ | |
# 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, see lesspipe(1) | |
[ -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=$(cat /etc/debian_chroot) | |
fi | |
# enable color support of ls and also add handy aliases | |
if [ -x /usr/bin/dircolors ]; then | |
test -r ~/.dircolors && eval "$(dircolors -b ~/.dircolors)" || eval "$(dircolors -b)" | |
alias ls='ls --color=auto' | |
alias dir='dir --color=auto' | |
#alias vdir='vdir --color=auto' | |
alias grep='grep --color=auto' | |
#alias fgrep='fgrep --color=auto' | |
#alias egrep='egrep --color=auto' | |
fi | |
#============================================================ | |
# Tailoring 'less' | |
#------------------------------------------------------------- | |
alias more='less' | |
export PAGER=less | |
export LESSCHARSET='latin1' | |
export LESSOPEN='|/usr/bin/lesspipe.sh %s 2>&-' | |
# Use this if lesspipe.sh exists. | |
export LESS='-i -N -w -z-4 -g -e -M -X -F -R -P%t?f%f \ | |
:stdin .?pb%pb\%:?lbLine %lb:?bbByte %bb:-...' | |
# LESS man page colors (makes Man pages more readable). | |
export LESS_TERMCAP_mb=$'\E[01;31m' | |
export LESS_TERMCAP_md=$'\E[01;31m' | |
export LESS_TERMCAP_me=$'\E[0m' | |
export LESS_TERMCAP_se=$'\E[0m' | |
export LESS_TERMCAP_so=$'\E[01;44;33m' | |
export LESS_TERMCAP_ue=$'\E[0m' | |
export LESS_TERMCAP_us=$'\E[01;32m' | |
#------------------------------------------------------------- | |
# Alias definitions. | |
# 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 | |
#------------------------------------------------------------- | |
# A few fun ones | |
#------------------------------------------------------------- | |
# Adds some text in the terminal frame (if applicable). | |
function xtitle() | |
{ | |
case "$TERM" in | |
*term* | rxvt) | |
echo -en "\e]0;$*\a" ;; | |
*) ;; | |
esac | |
} | |
# scripts (remember to chmod them) | |
PATH="$HOME/bin:$PATH" | |
PATH="/usr/games/:$PATH" | |
#command-not-found improvement | |
export COMMAND_NOT_FOUND_PROMPT=1 |
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