如何在bash中使用相同的名称但扩展名相同的目录复制多个文件？

Question

The requirement is to make copies of n(n>10000) files in the same linux directory. The extension of the files has to be intact and can probably add numbers to distinguish among files.

For eg if one file is text1.txt the other could be text2.txt

But I have to create multiple copies from multiple files and not from a single file.

Please help.

Answer 1

Bash pattern substitution might help you here. If you eg want to copy all .txt files, you can do it like this:

for file in *.txt # add any other name wildcards
do
    filename=${file%.*} # removes everything after the last dot
    extension=${file##*.} # removes everything before the last dot
    cp "$file" "${filename}-copy.${extension}" # adds the -copy suffix to every copy
done

Answer 2

您可能希望研究logrotate之类的工具，该工具可以包含例如glob并定期旋转每个文件。