Linux修改终端提示符

打开~/.bashrc可以看到命令提示的内容为:\u@\h\w\$

\u表示用户名,\h表示主机名,\w表示当前目录,\$表示命令提示符(普通用户$,超级用户#)

这个命令提示符有点长,很碍事,\u@\h是可以删除的,只显示\w\$就很好

改为:PS1='\[\033[1;3;32m\]\w\[\033[31m\]\$\[\033[0m\]'

如果改为PS1='\033[1;3;32m\]\w\033[31m\]\$\033[0m\]',系统会错误的理解这个字符串的长度,导致系统对光标的位置理解错误,就会出现长命令回到行首的情形.下面这个链接对这个问题讲的格外清楚http://mywiki.wooledge.org/BashFAQ/053#CA-3f52bac3b5ad40d98d0fa76a95be9049141bfced_5

(这个网站可谓是学习shell的理想场所,讲解全面而又清晰有层次)

转义字符必须放在[和]之间,这个规则只适用于定义PS1时.若在其他地方,要把转义序列放在\001和\002之间.

关于颜色转义,运行一下下面这个脚本便全知道了

#!/bin/bash

cat << haha

 	You can write like this :

 		\033[one;two;three m

 	This is called ansi color.

 	"echo -e " you can use escapes !

 	for more infomation ,try "man echo"

haha

#character attributes

a=(normal 0

bold 1

dim 2

italic 3

under 4

blink 5

six 6

revert 7

conceal 8

delete 9

)

#forecolor

b=(

black 30

red 31

green 32

yellow 33

blue 34

magenta 35

cyan 36

white 37

)

#backcolor

c=(

black 40

red 41

green 42

yellow 43

blue 44

magenta 45

cyan 46

white 47

)

function show(){

	while test $# -gt 0;do

		echo  -e "\033[${2}m weidiao\033[0m   $1    $2" | column -t

		shift 2

	done

}

show ${a[*]}

echo ===============fore color ======================

show ${b[*]}

echo ================back color ====================

show ${c[*]}

echo ================random ========================

echo -e "\033[${b[3]};${c[1]}m weidiao is great\033[0m"

在windows下，控制台无法选择漂亮字体，只有点阵字体和宋体非常难看。下载一个cmder（去github上的realease中下载），解压就能用：设置命令行提示符，在vendor文件夹下的init.bat中，里面的颜色转义跟上面所述差不太多。我的prompt：@prompt $E[1;32;40m$P$E[1;31;40m$$$E[0m

再把背景颜色设置成Ubuntu背景色:rgb(44,0,30)就完美了.而cmder不支持背景色,但支持背景图片,那就制作一张纯色的ubuntu背景图片.

在使用python时,IDLE没有代码提示,非常难用.有两个选择bpython和ipython,但是bpython对windows的支持不够完善,所以还是用ipython,但是ipython在控制台下的界面比较丑,而在cmder下的界面就美观多了.

.bash_profile和.bashrc是不一样的,最好把相同的内容在这两个文件里面复制一遍,这样就不用考虑它俩有啥区别了.

# ~/.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

# 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

# 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

# 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

PS1='\[\033[1;3;32m\]\w\[\033[31m\]\$\[\033[0m\]'

# 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 ! 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

#设置颜色

export LS_OPTIONS='--color=auto'

export CLICOLOR="yes"

export LSCOLORS='CxfxcxdxbxegedabagGxGx'

巴特西

Linux修改终端提示符

最新文章

热门文章