如何自动删除文件名中的文件扩展名 [英] How to automatically remove the file extension in a file name

问题描述

我正在尝试使用bash编写一个脚本，该脚本要求从文件名中删除文件扩展名，如下所示

I am trying to make a script in bash that requires the removal of the the file extension from a file name, like the following

original:   something.zip
removed version: something

我当时想我可以使用cut，但是我担心这样的情况会出现，即文件名可能包含多个句点，等等，类似于以下内容

And I was thinking I could use cut for this, but I am worried that a situation could arise where there might be a file name that has more than one period, etc, something similar to the following

something.v2.zip

已经说过，我想知道是否有人对我从文本/文件名行中删除最后一个句号和后面的文本有什么建议?任何帮助将不胜感激，谢谢！

having said that, I was wondering if anyone had any recommendations as to what I could do to just remove the last period and the text after it from a line of text/filename? any help would be appreciated, thanks!

推荐答案

 f=file.zip
 echo ${f%.zip}

 file

'％'是参数修饰符，表示从'％'字符后的变量值的右侧删除，在此情况下为字符串.zip.您可以使用

The '%' is a parameter modifier, it means, delete from the right side of the value of the variable whatever is after the '%' char, in this case, the string .zip. You can make this more general to remove any trailing extension, by using a wild card like

 echo ${f%.*}

 file

IHTH

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