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Annotation of 43BSDTahoe/man/man8/fstat.8, revision 1.1

1.1     ! root        1: .\" Copyright (c) 1987 Regents of the University of California.
        !             2: .\" All rights reserved.
        !             3: .\"
        !             4: .\" Redistribution and use in source and binary forms are permitted
        !             5: .\" provided that the above copyright notice and this paragraph are
        !             6: .\" duplicated in all such forms and that any documentation,
        !             7: .\" advertising materials, and other materials related to such
        !             8: .\" distribution and use acknowledge that the software was developed
        !             9: .\" by the University of California, Berkeley.  The name of the
        !            10: .\" University may not be used to endorse or promote products derived
        !            11: .\" from this software without specific prior written permission.
        !            12: .\" THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
        !            13: .\" IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
        !            14: .\" WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
        !            15: .\"
        !            16: .\"    @(#)fstat.8     5.4 (Berkeley) 7/9/88
        !            17: .\"
        !            18: .TH FSTAT 8 "July 9, 1988"
        !            19: .UC 4
        !            20: .SH NAME
        !            21: fstat \- file status
        !            22: .SH SYNOPSIS
        !            23: .B fstat
        !            24: [
        !            25: .B \-u
        !            26: user ] [
        !            27: .B \-p
        !            28: pid ] [
        !            29: .B filename... 
        !            30: ]
        !            31: .SH DESCRIPTION
        !            32: .I Fstat
        !            33: identifies open files.
        !            34: A file is considered open if a process has it open,
        !            35: if it is the working directory for a process,
        !            36: or if it is an active pure text file.
        !            37: If no options are specified,
        !            38: .I fstat
        !            39: reports on all open files.
        !            40: .PP
        !            41: Options:
        !            42: .TP 6
        !            43: .B  \-u
        !            44: Report all files open by a specified user.
        !            45: .TP 6
        !            46: .B  \-p
        !            47: Report all files open by a specified process id.
        !            48: .TP 6
        !            49: .B filename...
        !            50: Restrict reports to the specified files.
        !            51: If the file is a block special file,
        !            52: .I fstat
        !            53: additionally reports on any open files on that device,
        !            54: treating it as a mounted file system.  
        !            55: .PP
        !            56: The following fields are printed
        !            57: .TP 6
        !            58: .B  USER
        !            59: The username of the owner of the process.
        !            60: .TP 6
        !            61: .B CMD
        !            62: The command name of the process.
        !            63: .TP 6
        !            64: .B PID
        !            65: The process id.
        !            66: .TP 6
        !            67: .B FD
        !            68: The file number in the per-process open file table.  The special
        !            69: names "text" and "wd" mean that the file is the pure text inode
        !            70: or the working directory for the process.  If the file number is
        !            71: followed by an asterick (*), then the file is not an inode, but
        !            72: either a socket, fifo, or has an error of some kind. In this case
        !            73: the rest of the entry is variable format, doesn't correspond
        !            74: to the rest of the
        !            75: headings, and is
        !            76: enclosed in parenthesis.
        !            77: The following paragraph describing sockets will explain the
        !            78: variable format.
        !            79: .TP 6
        !            80: .B DEVICE
        !            81: Major minor number of the device this file exists on.
        !            82: .TP 6
        !            83: .B INODE
        !            84: The inode number of the file.
        !            85: .TP 6
        !            86: .B SIZE
        !            87: The size in bytes of the file.
        !            88: .TP 6
        !            89: .B TYPE
        !            90: The type of the file. (see sys/file.h)
        !            91: .PP
        !            92: Sockets
        !            93: .sp1 6
        !            94: The formating of open sockets depends on the protocol domain.  In
        !            95: all cases the first field is the domain name, the second field
        !            96: is the socket type (stream, dgram, etc), and the third is the socket
        !            97: flags field (in hex).  The remaining fields are protocol dependent.  For tcp,
        !            98: it is the address of the tcpcb, and for udp,
        !            99: the inpcb (socket pcb).  For unix domain sockets, its the address of the socket
        !           100: pcb and the address of the connected pcb (if connected).  Otherwise
        !           101: the protocol number and address of the socket itself are printed. The
        !           102: idea is not to duplicate netstat, but to make available enough
        !           103: information for further analysis.  For example, the addresses mentioned
        !           104: above are the addresses which the "netstat -A" command would print for
        !           105: tcp, udp, and unixdomain.  Note that since pipe(2) is implemented
        !           106: with sockets, a pipe appears as a connected unix domain stream socket.
        !           107: A unidirectional unix domain socket indicates the direction of
        !           108: flow with an arrow ("<-" or "->"), and a full duplex socket shows
        !           109: a double arrow ("<->").
        !           110: .dt
        !           111: .SH BUGS
        !           112: Socket information clutters the output.
        !           113: .PP
        !           114: Since \fIfstat\fP takes a snapshot of the system, it is only correct for
        !           115: a very short period of time.
        !           116: .SH "SEE ALSO"
        !           117: ps(1), pstat(8)

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