rename: fix 'rename' command has two different versions

[principis]

Fixes #3125
Moved rename to the linux folder and added explanation for rename.ul.
Added rename.ul

• The page (if new), does not already exist in the repo.
• The page is in the correct platform directory (common/, linux/, etc.)
• The page has 8 or fewer examples.
• The PR title conforms to the recommended templates.
• The page follows the content guidelines.
• The page description includes a link to documentation or a homepage (if applicable).

Let me know if any changes are necessary! :)

[tldr-bot]

The build for this PR has failed with the following error(s):

pages/linux/rename.md:4: TLDR004 Command descriptions should end in a period
pages/linux/rename.ul.md:5: TLDR004 Command descriptions should end in a period
pages/linux/rename.ul.md:1: TLDR009 Page should contain a newline at end of file

Please fix the error(s) and push again.

[sbrl]

Great work, @principis!

Thanks for helping untangle this. I've left a comment below for you to review.

[tldr-bot]

The build for this PR has failed with the following error(s):

pages/linux/rename.ul.md:5: TLDR004 Command descriptions should end in a period

Please fix the error(s) and push again.

[sbrl]

Oops, totally forgot about the end in a full stop thing.

I've committed a fix for you, if that's ok @principis?

[principis]

@sbrl is fine for me. I still need to make some changes according to what's discussed in #3125 but I'm currently short on time. I'll finish it friday or saturday. (Rename the files, and add perl-rename)

[mebeim]

Thank you @principis for taking the time to address this. Please see my comments below.

[principis]

@mebeim thanks for all the fixes. I just resolved everything because I changed a lot to what was discussed in #3125

I was thinking about an example for prename/perl-rename but couldn't immediately find something. According to the man page (prename/perl-rename), it shouldn't overwrite files without asking but in my testing it did... Can someone confirm?

[mebeim]

By the way, I prename does indeed rename without a warning on my machine (Debian 9.9).

[mebeim]

Ping @principis could you please apply my last unresolved suggestion so that this can finally be merged?

[principis]

@mebeim I'm so sorry, I've had terrible internet the past few weeks because I'm not at home... (~35 KB/s) and few time. I thought I still wanted to make some changes, but it's difficult to do anything from here so merging is fine. Sorry for the delay.

[mebeim]

@principis no problem at all! Thank you again for your work 😄