1.\" $FreeBSD: head/usr.bin/truss/truss.1 101285 2002-08-04 01:27:31Z mdodd $
2.\"
3.Dd November 23, 1997
4.Dt TRUSS 1
5.Os
6.Sh NAME
7.Nm truss
8.Nd trace system calls
9.Sh SYNOPSIS
10.Nm
11.Op Fl fdDS
12.Op Fl o Ar file
13.Fl p Ar pid
14.Nm
15.Op Fl fdDS
16.Op Fl o Ar file
17command
18.Op args
19.Sh DESCRIPTION
20The
21.Nm
22utility traces the system calls called by the specified process or program.
23Output is to the specified output file, or standard error by default.
24It does this by stopping and restarting the process being monitored via
25.Xr procfs 5 .
26.Pp
27The options are as follows:
28.Bl -tag -width indent
29.It Fl f
30Trace decendants of the original traced process created by fork(),
31vfork, etc.
32.It Fl d
33Include timestamps in the output showing the time elapsed
34since the trace was started.
35.It Fl D
36Include timestamps in the output showing the time elapsed
37since the last recorded event.
38.It Fl S
39Do not display information about signals received by the process.
--- 41 unchanged lines hidden ---
2.\"
3.Dd November 23, 1997
4.Dt TRUSS 1
5.Os
6.Sh NAME
7.Nm truss
8.Nd trace system calls
9.Sh SYNOPSIS
10.Nm
11.Op Fl fdDS
12.Op Fl o Ar file
13.Fl p Ar pid
14.Nm
15.Op Fl fdDS
16.Op Fl o Ar file
17command
18.Op args
19.Sh DESCRIPTION
20The
21.Nm
22utility traces the system calls called by the specified process or program.
23Output is to the specified output file, or standard error by default.
24It does this by stopping and restarting the process being monitored via
25.Xr procfs 5 .
26.Pp
27The options are as follows:
28.Bl -tag -width indent
29.It Fl f
30Trace decendants of the original traced process created by fork(),
31vfork, etc.
32.It Fl d
33Include timestamps in the output showing the time elapsed
34since the trace was started.
35.It Fl D
36Include timestamps in the output showing the time elapsed
37since the last recorded event.
38.It Fl S
39Do not display information about signals received by the process.
--- 41 unchanged lines hidden ---