script—Make typescript of terminal session
script [-a] [file]
script makes a typescript of everything printed on your terminal. It is useful for students who need a hardcopy record of an interactive session as proof of an assignment, as the typescript file can be printed out later with lpr(1).
If the argument file is given, script saves all dialogue in file. If no filename is given, the typescript is saved in the file typescript.
-a Append the output to file or typescript, retaining the prior contents
The script ends when the forked shell exits (a control-D to exit the Bourne shell, sh(1), and exit, logout, or control-d (if ignoreeof is not set) for the C-shell, csh(1)).
Certain interactive commands, such as vi(1), create garbage in the typescript file. Script works best with commands that do not manipulate the screen; the results are meant to emulate a hardcopy terminal.