学习shell中，贴一个“懒人播放音乐”脚本。

蓝铃

只是一个简单的练习shell 的脚本，
请多多指教。

1. 
   
2. #!/bin/bash
   
3. ###################################################
   
4. # Inspired by the idea of Apple Ipod Shuffle
   
5. # This script makes playing music easier than ever before
   
6. ###################################################
   
7. version=0.1
   
8. author="LL"
   
9. release="first release"
   
10. name=`basename $0`
    
11. 
    
12. # mpg321 — Free clone of mpg123, a command-line mp3 player
    
13. engine=mpg321
    
14. #play how many songs at one time
    
15. num=10
    
16. #this is the dynamic playlist generated each time
    
17. playlist=$HOME/.ipod_playlist
    
18. #setting the volume (max 100) as default
    
19. vol="-g 70"
    
20. 
    
21. #aliases to the options of the engine
    
22. shuffle="-z"
    
23. quiet="-q"
    
24. list="--list"
    
25. 
    
26. # This function generates a playlist
    
27. Shuffle()
    
28. {
    
29. #search all the mp3 files in user's HOME and put them all in the playlist
    
30. find $HOME -name *[Mm][pP]3 >$playlist
    
31. #find how many songs found
    
32. all=`wc -l  $playlist`
    
33. all=${all%% *}
    
34. 
    
35. # if no songs found, then nothing to do but exit
    
36. if [ $all -eq 0 ]
    
37. then
    
38. exit 2
    
39. fi
    
40. 
    
41. # if the number of all the songs is not more than $num, just play them all
    
42. # else generate a new playlist
    
43. if [ $all -gt $num ]
    
44. then
    
45. playlist_new=${playlist}_new
    
46. touch $playlist_new
    
47. fill=0
    
48. while [  $fill -lt $num ]
    
49. do
    
50. #generate random number to choose songs and put them in the new playlist
    
51. choose=$(($RANDOM % $all + 1))
    
52. #add the song into the new playlist if it's not added yet
    
53. current=`head -$choose $playlist | tail -1`
    
54. compare=`grep "$current" $playlist_new`
    
55. if [ "$compare" = "" ]
    
56. then
    
57. echo $current >> $playlist_new
    
58. fi
    
59. #calculate how many songs have been filled in the new playlist
    
60. fill=`wc -l $playlist_new`
    
61. fill=${fill%% *}
    
62. done
    
63. #replace the old playlist with the new one
    
64. mv -f $playlist_new $playlist
    
65. fi
    
66. }
    
67. 
    
68. #play music
    
69. Play()
    
70. {
    
71. #check if engine has been already playing
    
72. if [ "`pgrep $engine`" != "" ]
    
73. then
    
74. exit 1
    
75. fi
    
76. Shuffle
    
77. $engine $quiet $shuffle $vol $list $playlist &
    
78. }
    
79. 
    
80. #exit the music player
    
81. Stop()
    
82. {
    
83. if [ "`pgrep $engine`" != "" ]
    
84. then
    
85. kill `pgrep $engine`
    
86. fi
    
87. }
    
88. 
    
89. #### OK, Let's go!
    
90. if [ $# -eq 0 ]
    
91. then
    
92. Play
    
93. elif [ "$1" = "-q" ]
    
94. then
    
95. Stop
    
96. elif [ "$1" = "-v" ]
    
97. then
    
98. #setting the volumes
    
99. case $2 in
    
100.         100|[1-9][0-9]|[1-9]) vol="-g $2";;
     
101.         *) : ;;
     
102. esac
     
103. Play
     
104. else
     
105. echo "This is $name, version $version ($release), written by $author.
     
106. Using the $engine as the playing engine.
     
107. 
     
108. Here is the usage:
     
109. $name                 Play $num songs in random
     
110. $name -q                 Stop the playing
     
111. $name -v Number        Setting volume percentage and then play music
     
112. 
     
113. You can configure it by editting it.
     
114. "
     
115. fi
     

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寂寞烈火

好淫呐~~~

蓝铃

再来一个，用于 X 的。
第一个脚本尤其适合在字符界面下使用（有一点小问题，你发现了吗？）。

1. 
   
2. #!/bin/bash
   
3. ###################################################
   
4. # Inspired by the idea of Apple Ipod Shuffle
   
5. # This script makes playing music easier than ever before
   
6. ###################################################
   
7. #you can use another music player like: xmms, amarok...
   
8. player=beep-media-player
   
9. #play how many songs once
   
10. num=10
    
11. #the playlist generated dynamicly each time
    
12. playlist=$HOME/.ipod_playlist.m3u
    
13. tmplist=$HOME/.ipod_playlist.m3u.tmp
    
14. #your music library path
    
15. #lib=$HOME/music
    
16. lib=$HOME
    
17. 
    
18. # This function generate a random m3u playlist
    
19. Genlist()
    
20. {
    
21. #refresh the playlist first
    
22. if [ -e $playlist ]
    
23. then
    
24. rm -f $playlist
    
25. fi
    
26. touch $playlist
    
27. 
    
28. # fill $num songs in the playlist in random
    
29. fill=1
    
30. while [  $fill -le $num ]
    
31. do
    
32. #generate random number to choose songs
    
33. choose=$(($RANDOM % $all + 1))
    
34. #add the song into the playlist if it's not added yet
    
35. current=`head -$choose $tmplist | tail -1`
    
36. compare=`grep "$current" $playlist`
    
37. if [ "$compare" = "" ]
    
38. then
    
39. echo "#EXTM3U $fill" >>$playlist
    
40. echo $current >> $playlist
    
41. fill=$(($fill + 1))
    
42. fi
    
43. done
    
44. }
    
45. 
    
46. #search mp3  in user's music library and put them all in the tmp playlist
    
47. #if you find it is unneccessary to search them everytime, just search at some time you like
    
48. find "$lib" -name *[Mm][pP]3 >$tmplist
    
49. #you can add other music types here like ogg, flac
    
50. #find "$lib" -name *[Oo][Gg][Gg] >>$tmplist
    
51. 
    
52. #calculate how many songs found in all
    
53. all=`wc -l  $tmplist`
    
54. all=${all%% *}
    
55. 
    
56. # if no songs found, nothing to do but exit
    
57. if [ $all -eq 0 ]
    
58. then
    
59. exit 1
    
60. fi
    
61. 
    
62. #if the number of songs are not more than $num, just play them all
    
63. if [ $all -le $num ]
    
64. then
    
65. num=$all
    
66. fi
    
67. 
    
68. #make a playlist
    
69. Genlist
    
70. 
    
71. #call your player to play it at the background
    
72. $player $playlist &
    

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蓝铃

Yet, another one. Made a few changes to the previous one.

1. 
   
2. #!/bin/bash
   
3. ###################################################
   
4. # Inspired by the idea of Apple Ipod Shuffle
   
5. # This script makes playing music easier than ever before
   
6. ###################################################
   
7. #you can use another music player like: xmms, amarok...
   
8. player=beep-media-player
   
9. #play how many songs once
   
10. num=5
    
11. #the playlist generated dynamicly each time
    
12. playlist=$HOME/.ipod_playlist.m3u
    
13. tmplist=$HOME/.ipod_playlist.m3u.tmp
    
14. oldlist=$HOME/.ipod_playlist.m3u.recent
    
15. #your music library path
    
16. #lib=$HOME/music
    
17. lib=$HOME
    
18. 
    
19. # This function generate a random m3u playlist
    
20. Genlist()
    
21. {
    
22. # fill $num songs in the playlist in random
    
23. fill=1
    
24. while [  $fill -le $num ]
    
25. do
    
26. #generate random number to choose songs
    
27. choose=$(($RANDOM % $all + 1))
    
28. #check if the song has been added already, compare should return nothing if not added
    
29. current=`head -$choose $tmplist | tail -1`
    
30. compare=`grep "$current" $playlist`
    
31. #check if the song has been played recently, compare should be empty if not
    
32. compare2=`grep "$current" $oldlist`
    
33. 
    
34. # put the selected songs in the playlist and mark it as being played recently
    
35. if [ "$compare" = "" ] && [ "$compare2" = "" ]
    
36. then
    
37. echo "#EXTM3U $fill" >>$playlist
    
38. echo $current >> $playlist
    
39. echo $current >> $oldlist
    
40. fill=$(($fill + 1))
    
41. fi
    
42. done
    
43. }
    
44. 
    
45. #search mp3  in user's music library and put them all in the tmp playlist
    
46. #if you find it is unneccessary to search them everytime, just search at some time you like
    
47. find "$lib" -name *[Mm][pP]3 >$tmplist
    
48. #you can add other music types here like ogg, flac
    
49. #find "$lib" -name *[Oo][Gg][Gg] >>$tmplist
    
50. 
    
51. #calculate how many songs found in all
    
52. all=`wc -l  $tmplist`
    
53. all=${all%% *}
    
54. # if no songs found, nothing to do but exit
    
55. if [ $all -eq 0 ]
    
56. then
    
57. exit 1
    
58. fi
    
59. 
    
60. #check the old playlist
    
61. if [ ! -e $oldlist ]
    
62. then
    
63. touch $oldlist
    
64. fi
    
65. #calculate how many songs have been plalyed recently
    
66. old=`wc -l  $oldlist`
    
67. old=${old%% *}
    
68. 
    
69. #refresh the playlist first
    
70. if [ -e $playlist ]
    
71. then
    
72. rm -f $playlist
    
73. fi
    
74. touch $playlist
    
75. #make a  new playlist
    
76. if [ $all -le $num ]
    
77. # the number of songs are not more than $num, just play them all
    
78. then
    
79. num=$all
    
80. Genlist
    
81. elif [ $(($all - $old)) -lt $num ]
    
82. then
    
83. # a circle will be complete this time, play the left ones first
    
84. total=$num
    
85. num=$(($all - $old))
    
86. Genlist
    
87. #rewrite the recently played list
    
88. echo "`tail -$num $oldlist`" >$oldlist
    
89. num=$(($total - $num))
    
90. Genlist
    
91. else
    
92. Genlist
    
93. fi
    
94. 
    
95. #call your player to play it at the background
    
96. $player $playlist &

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ilikeqdi

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