更新mc后，使用mcedit编辑文件时Ctrl-O切换控制台功能异常

Hey there, let's figure out why your mcedit's Ctrl-O shortcut started acting weird after an update. Here are the most likely causes and fixes:

Possible Causes #

• Configuration Reset During Update
  Most mc updates won't overwrite your custom config, but occasionally they can reset default settings or add new entries that override your old setup. The Ctrl-O shortcut might have been reconfigured to run a "one-shot" shell command instead of keeping the console open.

• Default Keybinding Changes in New Versions
  Newer mc releases sometimes tweak default keybindings based on user feedback or industry standards. It's possible the team moved the "persistent shell" functionality to a different shortcut (like Ctrl+Z or another combo) and repurposed Ctrl-O for quick command execution that auto-returns to the editor.

• Terminal Emulator Compatibility Glitch
  If your terminal emulator (e.g., gnome-terminal, konsole) was updated around the same time, it might now intercept or misinterpret the Ctrl-O signal before mc can process it. Some terminals use Ctrl-O for their own shortcuts (like scrolling or toggling output), which could interfere with mc's behavior.

Fixes to Try #

1. Check and Edit mc's Configuration File
   Open your mc config file (usually located at ~/.mc/ini or ~/.config/mc/ini) in a text editor. Look for the [editor] section, then verify or add this line:

   bind ^O shell
   

   If you see bind ^O shell_once instead, change it to shell—this tells mc to keep the console open until you exit it manually. Save the file, restart mc, and test Ctrl-O again.

2. Reconfigure Keybindings via mc's UI
   Launch mc, press F9 to open the top menu, navigate to Options > Configuration > Editor. In the editor settings window, find the "Shell command" option and ensure its keybinding is set to Ctrl-O. If it's mapped to something else, reassign it using the UI controls.

3. Test in a Different Terminal
   Try running mc in a simpler terminal emulator like xterm or alacritty. If Ctrl-O works as expected there, the issue is with your primary terminal's settings. Check your terminal's shortcut preferences to make sure Ctrl-O isn't assigned to another function (like "Pause output" or similar) that's conflicting with mc.

内容的提问来源于stack exchange，提问作者PF4Public