Looks like less to me. How did you open the file? Double click from file explorer? Then you need to check your default applications.
this post was submitted on 25 Apr 2025
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It's less after I removed it, it revert itself back to normal
As others have said, less is super useful, you should keep it installed. There are better ways to open text files with your preferred editor than removing all alternatives.
Put EDITOR=youreditor in your env and keep less. Less is fine and it's usually default for man pages too.
I could be mistaken, but that editor looks like nano, which is just a super simple text editor. Ctrl-x should bring quit the editor and ask if you want to save.
How were you editing PKGBUILD files before? A GUI based editor?
nano doesn't look like that afaik. It could be vi ? maybe emacs?
It could be nano but I had to press Q to exit which is not nano key binding (Ctrl + X), I never edit PKGBUILD in terminal before, I'll edit it in Kate if I had to
Idk how to revert it, but for me it looks like less
Dude you're a time saver, it's actually less a text editor I never heard of before after I removed it PKGBUILD revert back to what it was before, it probably come with man page package I installed recently
Less is not an editor, it's a "pager" which is a read-only viewer for files, or for command output that doesn't fit in a single screen, or whatever. Generally to control which you want programs use you set the PAGER environment variable.
The old grandaddy pager was called "more", as in "there's more text than fits on the screen". The successor is called "less". For most purposes, less is more.
Another way to fix this, would have been to navigate to the pkgbuild file in question, right click, open with, Kate. I’m more familiar with Gnome than KDE but I assume there’s an option to make Kate your default for opening files of that type.
After my first comment i digged into the man page of paru and found that another, although temporary, way is to use -fm <command> flag
How did you open this? Maybe something overrode your default text editor application (look in settings for Default Applications).
Also maybe check your EDITOR env variable (echo $EDITOR), though that is only used when a different CLI program wants to open an editor for you (in CLI)
Another commenter said less and it's actually less doing this, it come with man package and set itself as default editor for PKGBUILD