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mirror of https://git.FreeBSD.org/src.git synced 2024-12-04 09:09:56 +00:00

procstat(1): Add EXAMPLES section

* Add some examples showing binary, arguments and file info from living
  processes.
* Show information from core dumps including an attempt using an old core file.
* While here, fix warning 'no blank before trailing delimiter' reported by igor.

Approved by:	manpages (0mp@)
Differential Revision:	https://reviews.freebsd.org/D25467
This commit is contained in:
Fernando Apesteguía 2020-10-05 14:07:32 +00:00
parent 3d17b350e5
commit fd92b91c71
Notes: svn2git 2020-12-20 02:59:44 +00:00
svn path=/head/; revision=366449

View File

@ -25,7 +25,7 @@
.\"
.\" $FreeBSD$
.\"
.Dd September 14, 2020
.Dd October 5, 2020
.Dt PROCSTAT 1
.Os
.Sh NAME
@ -710,6 +710,51 @@ auxiliary vector value
.El
.Sh EXIT STATUS
.Ex -std
.Sh EXAMPLES
Show binary information about the current shell:
.Bd -literal -offset indent
$ procstat binary $$
PID COMM OSREL PATH
46620 bash 1201000 /usr/local/bin/bash
.Ed
.Pp
Same as above but showing information about open file descriptors:
.Bd -literal -offset indent
$ procstat files $$
PID COMM FD T V FLAGS REF OFFSET PRO NAME
46620 bash text v r r------- - - - /usr/local/bin/bash
46620 bash ctty v c rw------ - - - /dev/pts/12
46620 bash cwd v d r------- - - - /tmp
46620 bash root v d r------- - - - /
46620 bash 0 v c rw------ 7 372071 - /dev/pts/12
46620 bash 1 v c rw------ 7 372071 - /dev/pts/12
46620 bash 2 v c rw------ 7 372071 - /dev/pts/12
46620 bash 255 v c rw------ 7 372071 - /dev/pts/12
.Ed
.Pp
Show the arguments used to launch
.Xr init 8 :
.Bd -literal -offset indent
$ procstat arguments 1
PID COMM ARGS
1 init /sbin/init --
.Ed
.Pp
Extract binary information from a core dump:
.Bd -literal -offset indent
$ procstat binary core.36642
PID COMM OSREL PATH
36642 top 1201000 /usr/bin/top
.Ed
.Pp
Trying to extract information from a core file generated in a different major
.Fx
version might show an error like this:
.Bd -literal -offset indent
$ procstat mplayer.core
procstat: kinfo_proc structure size mismatch
procstat: procstat_getprocs()
.Ed
.Sh SEE ALSO
.Xr fstat 1 ,
.Xr ps 1 ,