Built in to bash and other shells. https://www.gnu.org/software/bash/manual/html_node/Using-History-Interactively.html https://www.gnu.org/software/bash/manual

Built in to bash and other shells. https://www.gnu.org/software/bash/manual/html_node/Using-History-Interactively.html https://www.gnu.org/software/bash/manual/html_node/Using-His... I think people who work a lot at the command line mostly use aliases and little scripts in files.