The Command Line

01-the-shell.md 02-print-working-directory-pwd-command.md 03-change-directory-cd-command.md 04-list-directories-ls-command.md 05-touch-command.md 06-file-command.md 07-cat-command.md 08-less-command.md 09-history-command.md 10-copy-cp-command.md 11-move-mv-command.md 12-make-directory-mkdir-command.md 13-remove-rm-command.md 14-find-command.md 15-help-command.md 16-man-command.md 17-whatis-command.md 18-alias-command.md 19-exit-command.md