How to manage Zsh command history

In Zsh, command history stores previously executed commands, allowing quick recall and repetition. By optimizing how history is saved, searched, and shared across sessions, users can enhance efficiency and reduce retyping.

Zsh provides more flexible history handling than many other shells, offering features like extended history files, ignoring duplicates, and merging history lines. Adjusting environment variables and using widgets improves the user experience.

With a well-configured history system, navigating past commands becomes intuitive. Quickly retrieving complex lines or sequences streamlines workflows, enabling users to focus on their tasks rather than recollecting command syntax.

1. Print current history.

   $ history

   Shows recently run commands.

2. Set history parameters in ~/.zshrc.

   $ nano ~/.zshrc

   Add lines like:

   HISTSIZE=2000
   SAVEHIST=2000
   HISTFILE=~/.zsh_history
   setopt HIST_IGNORE_DUPS

3. Source the file to apply changes.

   $ source ~/.zshrc

   Ctrl+R searches history interactively.

4. Test the updated history behavior by repeating commands.

   Ensure HISTFILE permissions are appropriate to protect sensitive commands.