shell一例

时间：2008-12-12 来源：lizeliang.linux

上帝说要有光，于是有了光。
我也模仿说要有音乐，可是没有，我得自己创造，呵呵！

最近安装了据说是Linux下支持格式最多的终端播放器Mplayer，为此大概编写了一个工具脚本，只要在终端下敲入music就可以为你播放音乐。前提是你的音乐路径为$HOME/Music或是$HOME/音乐。功能还没完工，还存在相当多的bug:-)，先发上来，慢慢再改吧。

#!/bin/bash
#
# SCRIPT: music
#
# AUTHOR: lizeliang <[email protected]>
#
# DATE: 11.5.2008
#
# REV: 1.0.A
#
# PLATFROM: Linux/Unix
#
# PORPOSE: play music only use a command
#
# REV LIST:
#   DATE: 11.11.2008
#   BY: lizeliang
#   MODIFICATION: fix some bugs:-)
#
# Initialize all variable

###############################################################################
########## DEFINE FILES AND VARIABLES HERE ####################################
###############################################################################

DEFAULT=wuti

###############################################################################
########## DEFINE FUNCTIONS HERE ##############################################
###############################################################################

#echo $DEFAULT ;debug
play_back(){
   if [ $1 = "DEFAULT" ];then
       #echo $1 ;debug
       cd $DEFAULT
       #echo $DEFAULT ;debug
   fi
   echo -e "Now we begian play back music ..."
   mplayer *.wma *mp3
}
chice_path(){
   while true
   do
       echo -e "Please input the music's path: \c"
       read path
       if [ $path == 'q' ];then
           exit 0
       fi
       for var in `ls`
       do
           if [ $var = $path ];then #a bug such when "Soft music"..!!!
               cd $path
               break
           fi
       done
       if [ $var = $path ];then
           break
       fi
       echo -e "$path :No such path ..."
   done
}
chice_path_again(){
   cd ~/Music || cd ~/音乐
   ls
   while true
   do
       echo -e "Play over, Please chice path again: \c"
       read path
       if [ $path == 'q' ];then
           exit 0
       fi
       if [ -z $path ]; then
           play_back DEFAULT
           chice_path_again
       fi
       for var in `ls`
       do
           if [ $var = $path ];then
               cd $path
               break
           fi
       done
       if [ $var = $path ];then
           break
       elif [ $path = 'DEFAULT' ]; then #do with Enter!!!
           cd $DEFAULT
           break
       elif [ -z $path ]; then
           cd $DEFAULT
           break
       fi
       echo -e "$path :No such path ..."
   done
}

###############################################################################
########## BEGIAN OF MAIN #####################################################
###############################################################################

cd ~/Music || cd ~/音乐
echo -e "You have such music path:"
ls
while true
do
   if [ $# -eq 0 ];then
       play_back DEFAULT
       chice_path_again
   elif [ $# -eq 1 ];then
       #echo $1 ;debug
       if [ -a $1 ];then
           cd $1
           echo -e "Now we begian play back music ..."
           mplayer *.wma *mp3
       else
           echo -e "No such directory ..."
           exit 0
       fi
       echo -e "You have such music path:"
       ls
       #chice_path
       play_back
       chice_path_again
   else
       echo -e "Usage: music [dirname]: only one option.\n"
       exit 1
   fi
done
cd -
exit 0
# End of script#!/bin/bash

使用配置：
先在$HOME目录下新建一个隐藏目录.music，把该脚本复制存为music.sh到music目录下，再在终端下输入一下一行命令：

$echo "alias music=\"/bin/bash ~/.music/music.sh\"">>~/.bashrc

另外，把DEFAULT=wuti中的wuti设为你默认的播放音乐目录。
以后你就可以直接在终端上敲入music，就会有音乐为你播放。