2012年12月17日 星期一

Linux Bashrc

在linux 的環境變數設定中,
我們最常用到的兩個file應該就是  /etc/profile 與 ~/.bashrc .

一般來說 /etc/profile 是設定給所有使用者使用的.

系統會先讀取 /etc/profile 在讀取 使用者家目錄底下的~/.bashrc.

所以如果 /etc/profile  跟~/.bashrc .都有做設定  /etc/profile 的設定是會被 家目錄中的 ~/.bashrc所取代喔~

因為筆者很懶又喜歡彩色介面.

在此做個筆記.

Sample: 


 請將此檔案在家目錄下存檔成 .bashrc 即可像上圖一樣.
Source Code:

# ~/.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
[ -z "$PS1" ] && return

# don't put duplicate lines in the history. See bash(1) for more options
# ... or force ignoredups and ignorespace
HISTCONTROL=ignoredups:ignorespace

# append to the history file, don't overwrite it
shopt -s histappend

# for setting history length see HISTSIZE and HISTFILESIZE in bash(1)
HISTSIZE=1000
HISTFILESIZE=2000

# check the window size after each command and, if necessary,
# update the values of LINES and COLUMNS.
shopt -s checkwinsize

# 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

# set a fancy prompt (non-color, unless we know we "want" color)
case "$TERM" in
    xterm-color) 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 [ -n "$force_color_prompt" ]; then
    if [ -x /usr/bin/tput ] && tput setaf 1 >&/dev/null; then
        # We have color support; assume it's compliant with Ecma-48
        # (ISO/IEC-6429). (Lack of such support is extremely rare, and such
        # a case would tend to support setf rather than setaf.)
        color_prompt=yes
    else
        color_prompt=
    fi
fi

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

# some more ls aliases
alias ll='ls -alF'
alias la='ls -A'
alias l='ls -CF'

# Add an "alert" alias for long running commands.  Use like so:
#   sleep 10; alert
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$//'\'')"'

# 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 [ -f /etc/bash_completion ] && ! shopt -oq posix; then
    . /etc/bash_completion
fi

alias grep='grep --color'
alias ronny='ssh yen@ronny.tw'

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'

##export PS1="\[$(tput setaf 3 && tput smul)\]\u@\h:\w $ \[$(tput sgr0)\]"
##export PS1='\[\033[01;31m\]\h\[\033[04;37m\][\[\033[00;32m\]]\w\[\033[04;37m\]]( \[\034[04;34m\]\A\[\033[01;39m\]-\[\033[01;31m\]\u\[\033[01;33m\]-\[\033[00;32m\] '
##export PS1='\[\033[01;31m\]\u\[\033[01;33m\]@\[\033[01;32m\]\h\[\033[01;33m\]:\[\033[01;33m\]\w\[\033[01;31m\]\$ \[\033[00;32m\]'

export  GRAY="\[\033[1;30m\]"
export  RED="\[\033[0;31m\]"
export  BLUE="\[\033[0;34m\]"
export  W="\[\033[0;37m\]"
export  Y="\[\033[0;33m\]"
export  G="\[\033[0;32m\]"
if [ $WINDOW ] ;then
export PS1="$RED\H$W[$G\w$W]($BLUE\A$W)[$WINDOW]-$Y\u$W- "
else
export PS1="$RED\H$W[$G\w$W]($BLUE\A$W)-$Y\u$W- "
fi
##export PS1='\[\033[01;31m\]\u\[\033[01;33m\]@\[\033[01;32m\]\h\[\033[01;33m\]:\[\033[01;33m\]\w\[\033[01;31m\]\$ \[\033[00;32m\]'

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