bash 如何去除文件名中的特殊字符？
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How to remove special characters in file names?
提问by Andy
When creating playlists I often came across files that would break the playing process. Such would be files with spaces or apostrophes. I would fix it with the following command
在创建播放列表时，我经常遇到会破坏播放过程的文件。这将是带有空格或撇号的文件。我会用以下命令修复它
for file in *.; do mv "$file" `echo $file | tr " " '_'` ; done **(for spaces)**
Now I more often come across files with commas, apostrophes, brackets and other characters. How would I modify the command to remove such characters?
现在我更经常遇到带有逗号、撇号、方括号和其他字符的文件。我将如何修改命令以删除这些字符？
Also tried rename 's/[^a-zA-Z0-9_-]//' *.mp4but it doesnt seem to remove spaces or commas
也试过了，rename 's/[^a-zA-Z0-9_-]//' *.mp4但似乎没有删除空格或逗号
回答by heemayl
Your renamewould work if you add the gmodifier to it, this performs all substitutions instead of only the first one:
rename如果g向其中添加修饰符，您会工作，这将执行所有替换而不是仅执行第一个替换：
$ echo "$file"
foo bar,spam.egg
$ rename -n 's/[^a-zA-Z0-9_-]//' "$file"
foo bar,spam.egg renamed as foobar,spam.egg
$ rename -n 's/[^a-zA-Z0-9_-]//g' "$file"
foo bar,spam.egg renamed as foobarspamegg
You can do this will bashalone, with parameter expansion:
您可以bash单独执行此操作，并带有参数扩展：
For removing everything except
a-zA-Z0-9_-from file names, assuming variablefilecontains the filename, using character class[:alnum:]to match all alphabetic characters and digits from currentlocale:"${file//[^[:alnum:]_-]/}"or explicitly, change the
LC_COLLATEtoC:"${file//[^a-zA-Z0-9_-]/}"
为了删除除
a-zA-Z0-9_-文件名之外的所有内容，假设变量file包含文件名，使用字符类[:alnum:]匹配来自 current 的所有字母字符和数字locale："${file//[^[:alnum:]_-]/}"或明确地，更改
LC_COLLATE为C："${file//[^a-zA-Z0-9_-]/}"
Example:
例子：
$ file='foo bar,spam.egg'
$ echo "${file//[^[:alnum:]_-]/}"
foobarspamegg
回答by Jairo Bernal
for file in *; do mv "$file" $(echo "$file" | sed -e 's/[^A-Za-z0-9._-]/_/g'); done &
