将一个目录下所以文件名都转成小写字母的脚本！讨论

编号1124

cvitem()
{
echo "mv $1 `dirname $1`/`basename $1 | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz'`"
}

[ $# = 0 ] && { echo "Usage: lcdir item1 item2 ..."; exit; }

for item in $*
do
[ "`dirname $item`" != "`basename $item`" ] && {
[ -d $item ] &&
{
for subitem in `ls $item`
do
./cvit.sh $item/$subitem
done
}
cvitem $item
}
done


这个脚本确实能解决实际问题。但是
echo "mv $1 `dirname $1`/`basename $1 | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz'`"

不太理解，大家讨论讨论啊！

firer2000

这么快，你就给贴出来啦，嘿嘿！！！

q1208c

有什么问题么?

bleach

怎么用？
在所要改的目录下执行就可以吗？

寂寞烈火

tr A-Z a-z不就得了

寂寞烈火

1. 
   
2. awk 'BEGIN{while("ls"|getline)print "mv "$0" "tolower($0)}'|sh

复制代码

ktdid

info sed看到的例子。。。

1. 
   
2. #! /bin/sh
   
3. # rename files to lower/upper case...
   
4. #
   
5. # usage:
   
6. #    move-to-lower *
   
7. #    move-to-upper *
   
8. # or
   
9. #    move-to-lower -R .
   
10. #    move-to-upper -R .
    
11. #
    
12. 
    
13. help()
    
14. {
    
15. cat << eof
    
16. Usage: $0 [-n] [-r] [-h] files...
    
17. 
    
18. -n      do nothing, only see what would be done
    
19. -R      recursive (use find)
    
20. -h      this message
    
21. files   files to remap to lower case
    
22. 
    
23. Examples:
    
24.     $0 -n *        (see if everything is ok, then...)
    
25.     $0 *
    
26. 
    
27.     $0 -R .
    
28. 
    
29. eof
    
30. }
    
31. 
    
32. apply_cmd='sh'
    
33. finder='echo "$@" | tr " " "\n"'
    
34. files_only=
    
35. 
    
36. while :
    
37. do
    
38. case "$1" in
    
39.      -n) apply_cmd='cat' ;;
    
40.      -R) finder='find "$@" -type f';;
    
41.      -h) help ; exit 1 ;;
    
42.      *) break ;;
    
43. esac
    
44. shift
    
45. done
    
46. 
    
47. if [ -z "$1" ]; then
    
48.      echo Usage: $0 [-h] [-n] [-r] files...
    
49.      exit 1
    
50. fi
    
51. 
    
52. LOWER='abcdefghijklmnopqrstuvwxyz'
    
53. UPPER='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
    
54. 
    
55. case `basename $0` in
    
56.      *upper*) TO=$UPPER; FROM=$LOWER ;;
    
57.      *)       FROM=$UPPER; TO=$LOWER ;;
    
58. esac
    
59. 
    
60. eval $finder | sed -n '
    
61. 
    
62. # remove all trailing slashes
    
63. s/\/*$//
    
64. 
    
65. # add ./ if there is no path, only a filename
    
66. /\//! s/^/.\//
    
67. 
    
68. # save path+filename
    
69. h
    
70. 
    
71. # remove path
    
72. s/.*\///
    
73. 
    
74. # do conversion only on filename
    
75. y/'$FROM'/'$TO'/
    
76. 
    
77. # now line contains original path+file, while
    
78. # hold space contains the new filename
    
79. x
    
80. 
    
81. # add converted file name to line, which now contains
    
82. # path/file-name\nconverted-file-name
    
83. G
    
84. 
    
85. # check if converted file name is equal to original file name,
    
86. # if it is, do not print nothing
    
87. /^.*\/\(.*\)\n\1/b
    
88. 
    
89. # now, transform path/fromfile\n, into
    
90. # mv path/fromfile path/tofile and print it
    
91. s/^\(.*\/\)\(.*\)\n\(.*\)$/mv \1\2 \1\3/p
    
92. 
    
93. ' | $apply_cmd
    

复制代码

[ 本帖最后由 ktdid 于 2005-11-19 17:19 编辑 ]