MacOS,

安装重命名包，

brew install rename

Use,

find . -iname "*.py" -type f | xargs -I% rename -c -f  "%"                       

该命令查找所有扩展名为*.py的文件，并将文件名转换为小写。

`f` - forces a rename

例如,

$ find . -iname "*.py" -type f
./sample/Sample_File.py
./sample_file.py
$ find . -iname "*.py" -type f | xargs -I% rename -c -f  "%"
$ find . -iname "*.py" -type f
./sample/sample_file.py
./sample_file.py

下面是我的次优解决方案，使用Bash shell脚本:

#!/bin/bash
# First, rename all folders
for f in `find . -depth ! -name CVS -type d`; do
   g=`dirname "$f"`/`basename "$f" | tr '[A-Z]' '[a-z]'`
   if [ "xxx$f" != "xxx$g" ]; then
      echo "Renaming folder $f"
      mv -f "$f" "$g"
   fi
done

# Now, rename all files
for f in `find . ! -type d`; do
   g=`dirname "$f"`/`basename "$f" | tr '[A-Z]' '[a-z]'`
   if [ "xxx$f" != "xxx$g" ]; then
      echo "Renaming file $f"
      mv -f "$f" "$g"
   fi
done

文件夹都正确地重命名，mv在权限不匹配时不会询问问题，CVS文件夹也不会重命名(不幸的是，该文件夹内的CVS控制文件仍然会重命名)。

由于“find -depth”和“find | sort -r”都以可用于重命名的顺序返回文件夹列表，我更喜欢使用“-depth”来搜索文件夹。

for f in `find`; do mv -v "$f" "`echo $f | tr '[A-Z]' '[a-z]'`"; done

冗长但“没有惊喜和装置的作品”

This script handles filenames with spaces, quotes, other unusual characters and Unicode, works on case insensitive filesystems and most Unix-y environments that have bash and awk installed (i.e. almost all). It also reports collisions if any (leaving the filename in uppercase) and of course renames both files & directories and works recursively. Finally it's highly adaptable: you can tweak the find command to target the files/dirs you wish and you can tweak awk to do other name manipulations. Note that by "handles Unicode" I mean that it will indeed convert their case (not ignore them like answers that use tr).

# adapt the following command _IF_ you want to deal with specific files/dirs
find . -depth -mindepth 1 -exec bash -c '
  for file do
    # adapt the awk command if you wish to rename to something other than lowercase
    newname=$(dirname "$file")/$(basename "$file" | awk "{print tolower(\$0)}")
    if [ "$file" != "$newname" ] ; then
        # the extra step with the temp filename is for case-insensitive filesystems
        if [ ! -e "$newname" ] && [ ! -e "$newname.lcrnm.tmp" ] ; then
           mv -T "$file" "$newname.lcrnm.tmp" && mv -T "$newname.lcrnm.tmp" "$newname" 
        else
           echo "ERROR: Name already exists: $newname"
        fi
    fi    
  done
' sh {} +

参考文献

我的剧本是基于以下这些精彩的回答:

https://unix.stackexchange.com/questions/9496/looping-through-files-with-spaces-in-the-names

如何在Bash中转换字符串为小写?

更小的，我很喜欢:

rename 'y/A-Z/a-z/' *

在不区分大小写的文件系统上，比如OS X的HFS+，你会想要添加-f标志:

rename -f 'y/A-Z/a-z/' *

我在Mac OS X上发现的最简单的方法是使用http://plasmasturm.org/code/rename/:上的重命名包

brew install rename
rename --force --lower-case --nows *

——force即使目标文件名已经存在，也要重命名。 ——lower-case将文件名全部转换为小写。 替换文件名中所有空格序列为单个下划线字符。