":": add page

[Magrid0]

• The page(s) are in the correct platform directories: common, linux, osx, windows, sunos, android, etc.
• The page(s) have at most 8 examples.
• The page description(s) have links to documentation or a homepage.
• The page(s) follow the content guidelines.
• The PR title conforms to the recommended templates.
• Version of the command being documented (if known):

Adding page requested on #12070

closes #12070

[tldr-bot]

Hello! I've noticed something unusual when checking this PR:

• The page pages/common/:.md seems to be a copy of pages/common/true.md (93% matching).

Is this intended? If so, just ignore this comment. Otherwise, please double-check the commits.

[tricantivu]

Maybe https://manned.org/:.1 or https://pubs.opengroup.org/onlinepubs/9699919799/utilities/V3_chap02.html#colon?

The implementation of the command true in coreutils is not the same as :

[vitorhcl]

Windows does not allow colons in a filename, so should we name the file as "colon.md"?

[kbdharun]

Windows does not allow colons in a filename, so should we name the file as "colon.md"?

Yeah, that would work the best in most cases, but since this command is GNU-specific UNIX-specific I think we can just leave the symbol as it is.

[tricantivu]

Windows does not allow colons in a filename, so should we name the file as "colon.md"?

Yeah, that would work the best in most cases, but since this command is GNU-specific I think we can just leave the symbol as it is.

: is not GNU specific, the features added to true are (i.e --help and --version)

[vitorhcl]

Yeah, that would work the best in most cases, but since this command is GNU-specific I think we can just leave the symbol as it is.

IMHO we should still rename it to collon.md because there are many cases that you can look for documentation for a different platform. For example: virtual machines, SSH, containers, use your main machine instead of a very limited one, remote access... So we should guarantee all pages can be downloaded on any platform.

[sebastiaanspeck]

Yeah, that would work the best in most cases, but since this command is GNU-specific I think we can just leave the symbol as it is.

IMHO we should still rename it to collon.md because there are many cases that you can look for documentation for a different platform. For example: virtual machines, SSH, containers, use your main machine instead of a very limited one, remote access... So we should guarantee all pages can be downloaded on any platform.

Agreed, but name it colon.md