mjhjmtu

On a fresh ranger install I tried to open neofetch config with ranger and selected ed to see what is it. I am glad Ctrl+D worked to exit the ed, but now ranger opens all files with it. Restarting terminal didn't work. ~/.config/ranger is empty:

$ ls -la .config/ranger/
total 12
drwxr-xr-x 2 techtonik techtonik 4096 ліс 24 23:32 .
drwx------ 24 techtonik techtonik 4096 ліс 24 22:19 ..
-rw-r--r-- 1 techtonik techtonik 35 ліс 24 23:32 bookmarks
-rw-r--r-- 1 techtonik techtonik 0 ліс 24 23:32 history
-rw-r--r-- 1 techtonik techtonik 0 ліс 7 14:03 tagged

How to fix that?

UPD: $EDITOR is empty, rifle still runs the ed.

$ rifle -l ~/.config/neofetch/config.conf 
0:editor::$EDITOR -- "$@"
1:pager::"$PAGER" -- "$@"
$ echo $EDITOR

$ rifle ~/.config/neofetch/config.conf 
13949

UPD2: Ubuntu 18.10

UPD3: I don't see that ed is selected by OS

$ update-alternatives --display editor
editor - auto mode
 link best version is /bin/nano
 link currently points to /bin/nano
 link editor is /usr/bin/editor
 slave editor.1.gz is /usr/share/man/man1/editor.1.gz
 slave editor.fr.1.gz is /usr/share/man/fr/man1/editor.1.gz
 slave editor.it.1.gz is /usr/share/man/it/man1/editor.1.gz
 slave editor.ja.1.gz is /usr/share/man/ja/man1/editor.1.gz
 slave editor.pl.1.gz is /usr/share/man/pl/man1/editor.1.gz
 slave editor.ru.1.gz is /usr/share/man/ru/man1/editor.1.gz
/bin/ed - priority -100
 slave editor.1.gz: /usr/share/man/man1/ed.1.gz
/bin/nano - priority 40
 slave editor.1.gz: /usr/share/man/man1/nano.1.gz
/usr/bin/vim.basic - priority 30
 slave editor.1.gz: /usr/share/man/man1/vim.1.gz
 slave editor.fr.1.gz: /usr/share/man/fr/man1/vim.1.gz
 slave editor.it.1.gz: /usr/share/man/it/man1/vim.1.gz
 slave editor.ja.1.gz: /usr/share/man/ja/man1/vim.1.gz
 slave editor.pl.1.gz: /usr/share/man/pl/man1/vim.1.gz
 slave editor.ru.1.gz: /usr/share/man/ru/man1/vim.1.gz
/usr/bin/vim.tiny - priority 15
 slave editor.1.gz: /usr/share/man/man1/vim.1.gz
 slave editor.fr.1.gz: /usr/share/man/fr/man1/vim.1.gz
 slave editor.it.1.gz: /usr/share/man/it/man1/vim.1.gz
 slave editor.ja.1.gz: /usr/share/man/ja/man1/vim.1.gz
 slave editor.pl.1.gz: /usr/share/man/pl/man1/vim.1.gz
 slave editor.ru.1.gz: /usr/share/man/ru/man1/vim.1.gz

Check what editor, the os itself is pointing at. I think, ranger is looking at the now default for the os. Change the os's perfered editor, and I think it will change rangers.

sudo update-alternatives --config editor

Type the number of the one you want and hit enter.

In your case

auto mode

/bin/ed - priority -100

Each alternative has a priority associated with it. When a link group is in automatic mode, the alternatives pointed to by members of the group will be those which have the highest priority.

Set priority to 10

Change that and you should be good.

As pointed out by @toon in ranger tracker, ranger doesn't provide any editor selection dialogs if EDITOR is not set. It resorts to hardcoded vim, but Debian/Ubuntu hackers patch ranger to use sensible-editor, which is a bash script that is not connected with updates-alternatives in any way, and stores editor choice in ~/.selected_editor:

$ cat ~/.selected_editor 
# Generated by /usr/bin/select-editor
SELECTED_EDITOR="/bin/ed"

I guess this sensible-editor bash script was implemented as a hack, because update-alternatives works on a system level, and users without root needed to edit bash config to select their EDITOR (which doesn't work for everyone).

Instead of implicitly patching ranger, the Debian folks could explicitly set EDITOR=sensible-editor for user level sessions. "Explicit is better than implicit". At least this way we won't spend so much time here. Digging man I found that sensible-editor is explained in this policy page:

If it is very hard to adapt a program to make use of the EDITOR or PAGER variables, that program may be configured to use /usr/bin/sensible-editor and /usr/bin/sensible-pager as the editor or pager program respectively.

And according to this text, ranger should not be patched, because it is already aware and makes use of EDITOR.

Closing this with final rants, why the ed is given as the user-level choice of Linux editor in 2018 ???..