Linux(Ubuntu)使用日记------自定义命令的使用

Linux如何自定义自己的命令呢？修改 系统中的 ~/.bashrc 文件即可

在这个文件最后面使用alias命令重定义命令。

例如：

# novel-git begin

alias n.r='less -s ${novel_path}/reading/`ls novel/reading`'

alias n.g='${novel_path}/auto-git.sh'

alias n.n='vim ${novel_path}/note'

export novel_path=~/novel

# nove-git end

修改完成之后要使用命令 source  ~/.bashrc 刷新

这个脚本是我的一个小说阅读器，左边阅读，右上笔记，右下使用git保存笔记到github

我的novel目录：

操作思路：

对于长的脚本，我们可以写一些脚本，放到特定的一个文件夹下，在bashrc文件中执行这个脚本，

对于短的命令，我们直接重命名即可。

附录

我的bashrc 文件

# ~/.bashrc: executed by bash() 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() 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()

HISTSIZE=

HISTFILESIZE=

# 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()

[ -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

# 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  >&/dev/null; then

# We have color support; assume it's compliant with Ecma-48

# (ISO/IEC-). (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

# 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 ; alert

alias alert='notify-send --urgency=low -i "$([ $? = 0 ] && echo terminal || echo error)" "$(history|tail -n1|sed -e '\''s/^\s*[-]\+\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

# novel-git begin

alias n.r='less -s ${novel_path}/reading/`ls novel/reading`'

alias n.g='${novel_path}/auto-git.sh'

alias n.n='vim ${novel_path}/note'

export novel_path=~/novel

# nove-git end