xref: /freebsd/usr.bin/script/script.1 (revision 1e413cf93298b5b97441a21d9a50fdcd0ee9945e)
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32.\"	@(#)script.1	8.1 (Berkeley) 6/6/93
33.\" $FreeBSD$
34.\"
35.Dd January 22, 2004
36.Dt SCRIPT 1
37.Os
38.Sh NAME
39.Nm script
40.Nd make typescript of terminal session
41.Sh SYNOPSIS
42.Nm
43.Op Fl akq
44.Op Fl t Ar time
45.Op Ar file Op Ar command ...
46.Sh DESCRIPTION
47The
48.Nm
49utility makes a typescript of everything printed on your terminal.
50It is useful for students who need a hardcopy record of an interactive
51session as proof of an assignment, as the typescript file
52can be printed out later with
53.Xr lpr 1 .
54.Pp
55If the argument
56.Ar file
57is given,
58.Nm
59saves all dialogue in
60.Ar file .
61If no file name is given, the typescript is saved in the file
62.Pa typescript .
63.Pp
64If the argument
65.Ar command
66is given,
67.Nm
68will run the specified command with an optional argument vector
69instead of an interactive shell.
70.Pp
71The following options are available:
72.Bl -tag -width indent
73.It Fl a
74Append the output to
75.Ar file
76or
77.Pa typescript ,
78retaining the prior contents.
79.It Fl k
80Log keys sent to program as well as output.
81.It Fl q
82Run in quiet mode, omit the start and stop status messages.
83.It Fl t Ar time
84Specify time interval between flushing script output file.
85A value of 0
86causes
87.Nm
88to flush for every character I/O event.
89The default interval is
9030 seconds.
91.El
92.Pp
93The script ends when the forked shell (or command) exits (a
94.Em control-D
95to exit
96the Bourne shell
97.Pf ( Xr sh 1 ) ,
98and
99.Em exit ,
100.Em logout
101or
102.Em control-D
103(if
104.Em ignoreeof
105is not set) for the
106C-shell,
107.Xr csh 1 ) .
108.Pp
109Certain interactive commands, such as
110.Xr vi 1 ,
111create garbage in the typescript file.
112The
113.Nm
114utility works best with commands that do not manipulate the screen.
115The results are meant to emulate a hardcopy terminal, not an addressable one.
116.Sh ENVIRONMENT
117The following environment variable is utilized by
118.Nm :
119.Bl -tag -width SHELL
120.It Ev SHELL
121If the variable
122.Ev SHELL
123exists, the shell forked by
124.Nm
125will be that shell.
126If
127.Ev SHELL
128is not set, the Bourne shell
129is assumed.
130(Most shells set this variable automatically).
131.El
132.Sh SEE ALSO
133.Xr csh 1
134(for the
135.Em history
136mechanism).
137.Sh HISTORY
138The
139.Nm
140command appeared in
141.Bx 3.0 .
142.Sh BUGS
143The
144.Nm
145utility places
146.Sy everything
147in the log file, including linefeeds and backspaces.
148This is not what the naive user expects.
149.Pp
150It is not possible to specify a command without also naming the script file
151because of argument parsing compatibility issues.
152.Pp
153When running in
154.Fl k
155mode, echo cancelling is far from ideal.
156The slave terminal mode is checked
157for ECHO mode to check when to avoid manual echo logging.
158This does not
159work when in a raw mode where the program being run is doing manual echo.
160