在OS X中，mv -f显示“same file”错误，所以我重命名两次:

for i in `find . -name "*" -type f |grep -e "[A-Z]"`; do j=`echo $i | tr '[A-Z]' '[a-z]' | sed s/\-1$//`; mv $i $i-1; mv $i-1 $j; done

如果你不需要关心效率，就试试下面的方法。

zip -r foo.zip foo/*
unzip -LL foo.zip

如果你使用Arch Linux，你可以从AUR安装rename)包，它提供了renamexm命令作为/usr/bin/renamexm可执行文件和一个手册页面。

它是一个非常强大的工具，可以快速重命名文件和目录。

转换为小写字母

rename -l Developers.mp3 # or --lowcase

转换为大写

rename -u developers.mp3 # or --upcase, long option

其他选项

-R --recursive # directory and its children

-t --test # Dry run, output but don't rename

-o --owner # Change file owner as well to user specified

-v --verbose # Output what file is renamed and its new name

-s/str/str2 # Substitute string on pattern

--yes # Confirm all actions

如果需要，您可以从这里获取示例Developers.mp3文件;)

上面的大多数答案都很危险，因为它们不处理包含奇数字符的名称。对于这种情况，最安全的方法是使用find的-print0选项，该选项将以ASCII NUL而不是\n终止文件名。

下面是一个脚本，它只改变文件而不改变目录名，以免混淆find:

find .  -type f -print0 | xargs -0n 1 bash -c \
's=$(dirname "$0")/$(basename "$0");
d=$(dirname "$0")/$(basename "$0"|tr "[A-Z]" "[a-z]"); mv -f "$s" "$d"'

我对它进行了测试，它适用于包含空格、各种引号等的文件名。这很重要，因为如果您以根用户身份运行树中的其他脚本，其中包括由

touch \;\ echo\ hacker::0:0:hacker:\$\'\057\'root:\$\'\057\'bin\$\'\057\'bash

．.． 你猜怎么着……

这在macOS上也能很好地工作:

ruby -e "Dir['*'].each { |p| File.rename(p, p.downcase) }"

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?