If, while entering a command, you realize that you forgot the full command syntax or want to check something else, a mechanism has been introduced to let you interrupt the command line, execute another command or commands, and then resume with the interrupted line. To interrupt a command line enter ` ' (back-slash) as the last character and hit . The command string is then saved internally. To resume entering the interrupted command line, type ` ' (back-slash) again followed by . The saved command line will be displayed on the terminal and you may add more input.
NoteYou cannot edit or change the saved portion of the command after reentering the interrupted string, since your new input is handled as if it were a continuation of the original command line.