关于c:Linux学习bash的配置终端颜色显示

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1:bash 是咱们在登录零碎是执行的 shell 程序,咱们适当配置属于本人的 bash 能够不便咱们和 Linux 零碎的交互。是我本人更改的 bash 配置。

 通常的状况下、在咱们的零碎会保留备份 bash 配置,在 /etc/skel/.bashrc 这个地位。我便借助这个地位保留的备份更改了本人的终端色彩显示。如下图所示,是我很喜爱的显示。如果各位须要本人的显示内容,齐全能够本人配置属于本人的 bash。上面我将我的配置文件粘贴到这里。


在这里我重点说一下终端色彩显示
要批改 linux 终端命令行色彩,咱们须要用到 PS1,PS1 是 Linux 终端用户的一个环境变量,用来阐明命令行提示符的设置。在终端输出命令:#set,即可在输入中找到对于 PS1 的定义如下:PS1 的定义中个罕用的参数的含意如下:\d:# 代表日期,格局为 weekday month date,例如:"Mon Aug 1"   
    \H:# 残缺的主机名称   
    \h:# 仅取主机的第一个名字  
    \t:# 显示工夫为 24 小时格局,如:HH:MM:SS   
    \T:# 显示工夫为 12 小时格局   
    \A:# 显示工夫为 24 小时格局:HH:MM   
    \u:# 以后用户的账号名称   
    \v:#BASH 的版本信息   
    \w:# 残缺的工作目录名称   
    \W:# 利用 basename 获得工作目录名称,所以只会列出最初一个目录   
    \#:# 下达的第几个命令   
    \$:# 提醒字符,如果是 root 时,提示符为:#,普通用户则为:$  

    由此,咱们可知 linux 默认的命令行提示信息为:[以后用户的账号名称 @主机的第一个名字 工作目录的最初一项]#

    2. 色彩的设置
 F        B
 30      40      彩色   
 31      41      红色   
 32      42      绿色   
 33      43      黄色   
 34      44      蓝色   
 35      45      紫红色   
 36      46      青蓝色   
 37      47      红色  

    依据色彩表,套用入字符色彩设置格局中,就能够对 linux 终端命令行色彩进行个性化设置了。3. 批改.bashrc 文件

    通过下面的设置只能扭转以后终端的命令行格局,敞开这个终端,在从新关上的一个终端中命令行格局又会复原到默认的模式。想要永久性的扭转终端命令行格局,须要批改.bashrc 文件。在.bashrc 文件中对 PS1 的内容进行更改就能够做到终端显示了
    PS1='${debian_chroot:+($debian_chroot)}\[\033[36;40m\]\u \[\033[1;31;40m\]\W \[\033[1;35;40m\]\$ > \[\033[1;0;0m\]:这是我的配置,心愿你可能喜爱。同时,这个文件默认在~/.bashrc,关上进行复制粘贴就能够。最初将一张残缺的终端图像贴到这里。心愿你可能喜爱我这份 bash 配置。

    
    # ~/.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|*-256color) color_prompt=yes;;
    esac


    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)}\[\033[36;40m\]\u \[\033[1;31;40m\]\W \[\033[1;35;40m\]\$ > \[\033[1;0;0m\]'**
        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.  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

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