Append the output to file or typescript, retaining the prior contents.
Log keys sent to program as well as output.
Run in quiet mode, omit the start and stop status messages.
Specify time interval between flushing script output file. A value of 0 causes script to flush for every character I/O event. The default interval is 30 seconds.
The script ends when the forked shell (or command) 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. The script utility works best with commands that do not manipulate the screen. The results are meant to emulate a hardcopy terminal, not an addressable one.