Linux For 循环多个文件夹中的文件 - bash shell
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For loop for files in multiple folders - bash shell
提问by fanjabi
I need to have files from many directories in a for loop. As for now, I have the following code:
我需要在 for 循环中包含来自许多目录的文件。至于现在，我有以下代码：
for f in ./test1/*;
...
for f in ./test2/*;
...
for f in ./test3/*;
...
In each loop I'm doing the same thing. Is there a way to get files from multiple folders?
在每个循环中，我都在做同样的事情。有没有办法从多个文件夹中获取文件？
Thanks in advance
提前致谢
采纳答案by evgeny
Try for f in ./{test1,test2,test3}/*or for f in ./*/*depending on what you want.
尝试for f in ./{test1,test2,test3}/*或for f in ./*/*取决于你想要什么。
回答by Phil
You can give multiple "words" to for, so the simplest answer is:
你可以给多个“词” for，所以最简单的答案是：
for f in ./test1 ./test2 ./test3; do
...
done
There are then various tricks to reduce the amount of typing; namely globbing and brace expansion.
然后有各种技巧来减少打字量；即通配符和大括号扩展。
# the shell searchs for matching filenames
for f in ./test?; do
...
# the brace syntax expands with each given string
for f in ./test{1,2,3}; do
...
# same thing but using integer sequences
for f in ./test{1..3}
