.\" Copyright (c) 1980, 1990, 1993 .\" The Regents of the University of California. All rights reserved. .\" .\" Redistribution and use in source and binary forms, with or without .\" modification, are permitted provided that the following conditions .\" are met: .\" 1. Redistributions of source code must retain the above copyright .\" notice, this list of conditions and the following disclaimer. .\" 2. Redistributions in binary form must reproduce the above copyright .\" notice, this list of conditions and the following disclaimer in the .\" documentation and/or other materials provided with the distribution. .\" 4. Neither the name of the University nor the names of its contributors .\" may be used to endorse or promote products derived from this software .\" without specific prior written permission. .\" .\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE .\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE .\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF .\" SUCH DAMAGE. .\" .\" @(#)script.1 8.1 (Berkeley) 6/6/93 .\" $FreeBSD$ .\" .Dd December 4, 2013 .Dt SCRIPT 1 .Os .Sh NAME .Nm script .Nd make typescript of terminal session .Sh SYNOPSIS .Nm .Op Fl adkpqr .Op Fl F Ar pipe .Op Fl t Ar time .Op Ar file Op Ar command ... .Sh DESCRIPTION The .Nm utility 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 .Xr lpr 1 . .Pp If the argument .Ar file is given, .Nm saves all dialogue in .Ar file . If no file name is given, the typescript is saved in the file .Pa typescript . .Pp If the argument .Ar command is given, .Nm will run the specified command with an optional argument vector instead of an interactive shell. .Pp The following options are available: .Bl -tag -width indent .It Fl a Append the output to .Ar file or .Pa typescript , retaining the prior contents. .It Fl d When playing back a session with the .Fl p flag, do not sleep between records when playing back a timestamped session. .It Fl F Ar pipe Immediately flush output after each write. This will allow a user to create a named pipe using .Xr mkfifo 1 and another user may watch the live session using a utility like .Xr cat 1 . .\".It Fl f .\"Create .\".Ar file.filemon .\"or .\".Pa typescript.filemon .\"using .\".Xr filemon 4 . .It Fl k Log keys sent to the program as well as output. .It Fl p Play back a session recorded with the .Fl r flag in real time. .It Fl q Run in quiet mode, omit the start, stop and command status messages. .It Fl r Record a session with input, output, and timestamping. .It Fl t Ar time Specify the interval at which the script output file will be flushed to disk, in seconds. A value of 0 causes .Nm to flush after every character I/O event. The default interval is 30 seconds. .El .Pp The script ends when the forked shell (or command) exits (a .Em control-D to exit the Bourne shell .Pf ( Xr sh 1 ) , and .Em exit , .Em logout or .Em control-D (if .Em ignoreeof is not set) for the C-shell, .Xr csh 1 ) . .Pp Certain interactive commands, such as .Xr vi 1 , create garbage in the typescript file. The .Nm utility works best with commands that do not manipulate the screen. The results are meant to emulate a hardcopy terminal, not an addressable one. .Sh ENVIRONMENT The following environment variables are utilized by .Nm : .Bl -tag -width SHELL .It Ev SCRIPT The .Ev SCRIPT environment variable is added to the sub-shell. If .Ev SCRIPT already existed in the users environment, its value is overwritten within the sub-shell. The value of .Ev SCRIPT is the name of the .Ar typescript file. .It Ev SHELL If the variable .Ev SHELL exists, the shell forked by .Nm will be that shell. If .Ev SHELL is not set, the Bourne shell is assumed. .Pq Most shells set this variable automatically . .El .Sh SEE ALSO .Xr csh 1 .\".Xr filemon 4 .\".Po .\"for the .\".Em history .\"mechanism .\".Pc . .Sh HISTORY The .Nm command appeared in .Bx 3.0 . .Pp The .Fl d , .Fl p and .Fl r options first appeared in .Nx 2.0 and were ported to .Fx 9.2 . .Sh BUGS The .Nm utility places .Sy everything in the log file, including linefeeds and backspaces. This is not what the naive user expects. .Pp It is not possible to specify a command without also naming the script file because of argument parsing compatibility issues. .Pp When running in .Fl k mode, echo cancelling is far from ideal. The slave terminal mode is checked for ECHO mode to check when to avoid manual echo logging. This does not work when the terminal is in a raw mode where the program being run is doing manual echo. .Pp If .Nm reads zero bytes from the terminal, it switches to a mode when it only attempts to read once a second until there is data to read. This prevents .Nm from spinning on zero-byte reads, but might cause a 1-second delay in processing of user input.