xref: /freebsd/usr.bin/script/script.1 (revision a1a4f1a0d87b594d3f17a97dc0127eec1417e6f6)
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32.\"	@(#)script.1	8.1 (Berkeley) 6/6/93
33.\" $FreeBSD$
34.\"
35.Dd June 6, 1993
36.Dt SCRIPT 1
37.Os BSD 4
38.Sh NAME
39.Nm script
40.Nd make typescript of terminal session
41.Sh SYNOPSIS
42.Nm
43.Op Fl a
44.Op Fl k
45.Op Fl q
46.Op Fl t Ar time
47.Op Ar file
48.Op Ar command ...
49.Sh DESCRIPTION
50.Nm Script
51makes a typescript of everything printed on your terminal.
52It is useful for students who need a hardcopy record of an interactive
53session as proof of an assignment, as the typescript file
54can be printed out later with
55.Xr lpr 1 .
56.Pp
57If the argument
58.Ar file
59is given,
60.Nm
61saves all dialogue in
62.Ar file .
63If no file name is given, the typescript is saved in the file
64.Pa typescript  .
65.Pp
66If the argument
67.Ar command ...
68is given,
69.Nm
70will run the specified command with an optional argument vector
71instead of an interactive shell.
72.Pp
73Options:
74.Bl -tag -width xxxxxxx
75.It Fl a
76Append the output to
77.Ar file
78or
79.Pa typescript ,
80retaining the prior contents.
81.It Fl k
82Log keys sent to program as well as output.
83.It Fl q
84Run in quiet mode, omit the start and stop status messages.
85.It Fl t Ar time
86Specify time interval between flushing script output file.  A value of 0
87causes
88.Nm
89to flush for every character I/O event.  The 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.
112.Nm Script
113works best with commands that do not manipulate the
114screen, the results are meant to emulate a hardcopy
115terminal.
116.Sh ENVIRONMENT
117The following environment variable is utilized by
118.Nm script :
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. If
126.Ev SHELL
127is not set, the Bourne shell
128is assumed. (Most shells set this variable automatically).
129.El
130.Sh SEE ALSO
131.Xr csh 1
132(for the
133.Em history
134mechanism).
135.Sh HISTORY
136The
137.Nm
138command appeared in
139.Bx 3.0 .
140.Sh BUGS
141.Nm Script
142places
143.Sy everything
144in the log file, including linefeeds and backspaces.
145This is not what the naive user expects.
146.Pp
147It is not possible to specify a command without also naming the script file
148because of argument parsing compatibility issues.
149.Pp
150When running in
151.Fl k
152mode, echo cancelling far from ideal.  The slave terminal mode is checked
153for ECHO mode to check when to avoid manual echo logging.  This does not
154work when in a raw mode where the program being run is doing manual echo.
155