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Annotation of researchv10dc/man/manb/dcheck.8, revision 1.1

1.1     ! root        1: .TH DCHECK 8 
        !             2: .UC 4
        !             3: .SH NAME
        !             4: dcheck \- file system directory consistency check
        !             5: .SH SYNOPSIS
        !             6: .B /etc/dcheck
        !             7: [
        !             8: .B \-i
        !             9: numbers ]
        !            10: [ filesystem ]
        !            11: .SH DESCRIPTION
        !            12: .B N.B.:
        !            13: .I Dcheck
        !            14: is obsoleted for normal consistency checking by
        !            15: .IR fsck (8).
        !            16: .PP
        !            17: .I Dcheck
        !            18: reads the directories in a file system
        !            19: and compares
        !            20: the link-count in each i-node with the number of directory
        !            21: entries by which it is referenced.
        !            22: If the file system is not specified,
        !            23: a set of default file systems
        !            24: is checked.
        !            25: .PP
        !            26: The
        !            27: .B \-i
        !            28: flag
        !            29: is followed by a list of i-numbers;
        !            30: when one of those i-numbers turns up
        !            31: in a directory,
        !            32: the number, the i-number of the directory,
        !            33: and the name of the entry are reported.
        !            34: .PP
        !            35: The program is fastest if the
        !            36: raw version of the special file is used,
        !            37: since the i-list is read in large chunks.
        !            38: .SH FILES
        !            39: Default file systems vary with installation.
        !            40: .SH "SEE ALSO"
        !            41: fsck(8), icheck(8), filsys(5), clri(8), ncheck(8)
        !            42: .SH DIAGNOSTICS
        !            43: When a file turns up for which the link-count and the number
        !            44: of directory entries disagree,
        !            45: the relevant facts are reported.
        !            46: Allocated files which have 0 link-count and no entries are also
        !            47: listed.
        !            48: The only dangerous situation
        !            49: occurs when there are more entries than links;
        !            50: if entries are removed,
        !            51: so the link-count drops to 0,
        !            52: the remaining entries point to thin air.
        !            53: They should be removed.
        !            54: When there are more links than entries, or there is
        !            55: an allocated file with neither links nor entries,
        !            56: some disk space may be lost but the situation will not degenerate.
        !            57: .SH BUGS
        !            58: Since
        !            59: .I dcheck
        !            60: is inherently two-pass in nature, extraneous diagnostics
        !            61: may be produced if applied to active file systems.
        !            62: .PP
        !            63: .I Dcheck
        !            64: is obsoleted by
        !            65: .I fsck
        !            66: and remains for historical reasons.

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