script - make typescript of terminal session
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 file name is given, the typescript is saved
in the file typescript.
- -a, --append
- Append the output to file or typescript, retaining the prior
contents.
- -c, --command command
- 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.
- -e, --return
- Return the exit code of the child process. Uses the same format as bash
termination on signal termination exit code is 128+n.
- -f, --flush
- 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'.
- --force
- Allow the default output destination, i.e. the typescript file, to be a
hard or symbolic link. The command will follow a symbolic link.
- -q, --quiet
- Be quiet.
- -t, --timing[=file]
- Output timing data to standard error, or to file when given. 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.
- -V, --version
- Output version information and exit.
- -h, --help
- Output help and exit.
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.
The following environment variable is utilized by script:
- SHELL
- If the variable SHELL exists, the shell forked by script
will be that shell. If SHELL is not set, the Bourne shell is
assumed. (Most shells set this variable automatically).
csh(1) (for the history mechanism), scriptreplay(1).
The script command appeared in 3.0BSD.
Script places everything in the log file, including linefeeds and
backspaces. This is not what the naive user expects.