History
History is the ability for the shell to remember previous commands you have
typed, providing the ability to cycle back to re-run commands.
shrs provides DefaultHistory which is a very basic memory based history,
which means that your history will not persist if you close the shell. On the
other hand, FileBackedHistoryPlugin from shrs_file_history provides FileBackedHistory which writes to a file on disk, providing
persistent completions.
To add file backed history to shrs, simply add the plugin to shell:
// The file defaults to ~/.config/shrs/history
myshell.with_plugin(FileBackedHistoryPlugin::new());