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I have a total of 31 directories. Every directory has a random name.

❯ ls -al total 32 drwxr-xr-x 34 shinokada staff 1088 Dec 28 17:16 . drwxr-xr-x 32 shinokada staff 1024 Dec 28 17:12 .. -rw-r--r--@ 1 shinokada staff 14340 Dec 28 17:16 .DS_Store drwxr-xr-x 5 shinokada staff 160 Dec 28 17:10 05618066 drwxr-xr-x 5 shinokada staff 160 Dec 28 17:08 0fef2d20 drwxr-xr-x 5 shinokada staff 160 Dec 28 17:09 11ff096d drwxr-xr-x 5 shinokada staff 160 Dec 28 17:09 1651ff1f drwxr-xr-x 5 shinokada staff 160 Dec 28 17:09 2123b256 ... and more

Now I'd like to rename them sample1 sample2 sample3 ...sample31.

How can I do it on a terminal(bash/zsh)?

Is there a quick way to do it rather than rename one by one?

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  • You can't be running Bash and Zsh at the same time. The answers will probably look different for each. Commented Dec 28, 2020 at 8:46
  • MacOS does not seem to ship a rename tool; there are several incompatible ones, so it's unclear which one you refer to, but if you have the Perl-based one, it can probably do what you are asking in a slick one-liner. Commented Dec 28, 2020 at 8:47

1 Answer 1

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This should do:

num=1; for dir in */ ; do mv "${dir}" "sample$num" ; ((num++)); done

I assume you don't want to rename the files, only directories inside your current working directory.

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2 Comments

I just needed to change num=0 to num=1. Thanks.
Sorry, I missed that you are starting from sample1. Thanks for pointing it out (I edited it in the answer).

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