bash 脚本中的通配符扩展
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wildcard expansion in bash script
提问by Morse
if I write this string in my script:
如果我在我的脚本中写这个字符串:
list=$(ls /path/to/some/files/*/*/*.dat)
it works fine. But what I need is
它工作正常。但我需要的是
files="files/*/*/*.dat"
list=$(ls /path/to/some/${files})
and it says
它说
ls: /path/to/some/files/*/*/*.dat: No such file or directory
How should I do it?
我该怎么做?
采纳答案by kev
Try this:
尝试这个:
list=$(find /path/to/some/files/ -mindepth 3 -maxdepth 3 -name '*.dat')
回答by chepner
If you only get that message where there truly are no matching .datfiles, add this to your script:
如果您只在确实没有匹配.dat文件的情况下收到该消息,请将其添加到您的脚本中:
shopt -s nullglob
It will cause the glob to expand to an empty list if there are no matching files, rather than being treated literally.
如果没有匹配的文件,它会导致 glob 扩展为空列表,而不是按字面意思处理。

