How to set the default text editor in Zsh

In a Zsh environment, defining a default text editor ensures a uniform editing experience for commands that invoke editors automatically. Tools like crontab or system utilities rely on this default when no explicit editor is specified. Setting a preferred editor streamlines workflow and reduces confusion.

By configuring variables like EDITOR and VISUAL in Zsh’s startup files, editors become readily available without repeated manual selection. This approach provides consistent behavior across sessions and tasks, enhancing productivity.

Mastering editor configuration allows users and administrators to maintain stable, predictable editing sessions. Selecting a familiar or organizationally standard editor creates a coherent environment for text manipulation and system maintenance.

1. Open a terminal running Zsh.
2. Choose an editor and set the EDITOR variable.

   $ export EDITOR=vim
   $ echo $EDITOR
   vim

   Replace vim with nano or another preferred editor.

3. Set the VISUAL variable for consistency.

   $ export VISUAL=$EDITOR
   $ echo $VISUAL
   vim

   VISUAL is often checked before EDITOR.

4. Make the changes permanent by editing the ~/.zshrc file.

   $ nano ~/.zshrc

   Add lines like:

   export EDITOR=vim
   export VISUAL=vim

5. Source the file and test.

   $ source ~/.zshrc
   $ crontab -e

   If the wrong editor appears, verify that EDITOR and VISUAL are correctly set.