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
If the argument
saves all dialogue in
If no file name is given, the typescript is saved in the file
Append the output to
retaining the prior contents.
Run the COMMAND rather than an interactive shell.
This makes it easy for a script to capture the output of a program that
behaves differently when its stdout is not a tty.
Flush output after each write. This is nice for telecooperation:
One person does `mkfifo foo; script -f foo' and another can
supervise real-time what is being done using `cat foo'.
Output timing data to standard error. This data contains two fields,
separated by a space. The first field indicates how much time elapsed since
the previous output. The second field indicates how many characters were
output this time. This information can be used to replay typescripts with
realistic typing and output delays.
The script ends when the forked shell exits (a
the Bourne shell
exit , logout
is not set) for the
Certain interactive commands, such as
create garbage in the typescript file.
works best with commands that do not manipulate the
screen, the results are meant to emulate a hardcopy
The following environment variable is utilized by
If the variable
exists, the shell forked by
will be that shell. If
is not set, the Bourne shell
is assumed. (Most shells set this variable automatically).