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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
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svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=366449
@ -25,7 +25,7 @@
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.\"
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.\" $FreeBSD$
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.\"
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.Dd September 14, 2020
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.Dd October 5, 2020
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.Dt PROCSTAT 1
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.Os
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.Sh NAME
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@ -710,6 +710,51 @@ auxiliary vector value
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.El
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.Sh EXIT STATUS
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.Ex -std
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.Sh EXAMPLES
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Show binary information about the current shell:
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.Bd -literal -offset indent
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$ procstat binary $$
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PID COMM OSREL PATH
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46620 bash 1201000 /usr/local/bin/bash
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.Ed
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.Pp
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Same as above but showing information about open file descriptors:
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.Bd -literal -offset indent
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$ procstat files $$
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PID COMM FD T V FLAGS REF OFFSET PRO NAME
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46620 bash text v r r------- - - - /usr/local/bin/bash
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46620 bash ctty v c rw------ - - - /dev/pts/12
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46620 bash cwd v d r------- - - - /tmp
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46620 bash root v d r------- - - - /
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46620 bash 0 v c rw------ 7 372071 - /dev/pts/12
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46620 bash 1 v c rw------ 7 372071 - /dev/pts/12
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46620 bash 2 v c rw------ 7 372071 - /dev/pts/12
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46620 bash 255 v c rw------ 7 372071 - /dev/pts/12
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.Ed
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.Pp
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Show the arguments used to launch
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.Xr init 8 :
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.Bd -literal -offset indent
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$ procstat arguments 1
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PID COMM ARGS
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1 init /sbin/init --
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.Ed
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.Pp
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Extract binary information from a core dump:
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.Bd -literal -offset indent
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$ procstat binary core.36642
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PID COMM OSREL PATH
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36642 top 1201000 /usr/bin/top
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.Ed
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.Pp
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Trying to extract information from a core file generated in a different major
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.Fx
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version might show an error like this:
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.Bd -literal -offset indent
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$ procstat mplayer.core
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procstat: kinfo_proc structure size mismatch
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procstat: procstat_getprocs()
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.Ed
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.Sh SEE ALSO
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.Xr fstat 1 ,
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.Xr ps 1 ,
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