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SNAPSHOT-DIR(1C)                                              SNAPSHOT-DIR(1C)


NAME

       snapshot-dir - create a snapshot database of a directory tree


SYNOPSIS

       snapshot-dir [-vN] directory [directory...] [:output=database-name]
       [:old=database-name] [:devcross=true]


DESCRIPTION

       snapshot-dir

       Finds all files in the directory, recursively, and writes to the
       [database-name] or to standard output a description of each file
       including name, file modes, sizes, dates, and an MD5 checksum of each
       REG file, and the contents of each symbolic link.

       The database can be further processed by other programs that can
       determine what has changed in a file system.

       The directory arguments can also be regular file names.

       The -v argument lets you specify a verbosity level.

       If :old=database-name is given then the old database will be used as a
       cache of md5 values. The md5 of a regular file will only be recomputed
       for files which have been apparently changed according to the operating
       system reported status. Programs can of course modify a file and then
       set the status values back, so do not use this technique during
       security audits.

       If :devcross=false is specified then all entries which do not reside on
       the same "device" as the starting directory will be ignored. This is
       useful for creating a snapshot that can be compared with a filesystem
       backup tape.

       # snapshot-dir /tmp/gjc
       ("/tmp/gjc/."
        (dev 8 0)
        (ino . 8034)
        (mode DIR XOTH ROTH XGRP RGRP XUSR WUSR RUSR)
        (nlink . 3)
        (uid . 148)
        (gid . 0)
        (rdev . 36789)
        (size . 512)
        (atime . 815151544)
        (mtime . 815085346)
        (ctime . 815085346)
        (blksize . 8192)
        (blocks . 2)
        (flags . 0)
        (gen . 815085365)
       )
       ("/tmp/gjc/foo"
        (dev 8 0)
        (ino . 8059)
        (mode DIR XOTH ROTH XGRP RGRP XUSR WUSR RUSR)
        (nlink . 3)
        (uid . 148)
        (gid . 0)
        (rdev . 36821)
        (size . 512)
        (atime . 815151319)
        (mtime . 815151527)
        (ctime . 815151527)
        (blksize . 8192)
        (blocks . 2)
        (flags . 0)
        (gen . 815085366)
       )
       ("/tmp/gjc/foo/test.txt"
        (md5 . "bd7090333ff9eabec6a4c1f9461aaaff")
        (dev 8 0)
        (ino . 8085)
        (mode REG ROTH RGRP WUSR RUSR)
        (nlink . 1)
        (uid . 148)
        (gid . 0)
        (rdev . 36963)
        (size . 13)
        (atime . 815151527)
        (mtime . 815151537)
        (ctime . 815151537)
        (blksize . 8192)
        (blocks . 2)
        (flags . 0)
        (gen . 815151527)
       )


EXIT STATUS

       Errors result in a non-zero exit status.


AUTHOR

       gjc@world.std.com


SEE ALSO

       siod http://people.delphi.com/gjc/siod.html


FILES

       /usr/local/bin/snapshot-dir /usr/local/bin/siod
       /usr/local/lib/siod/find-files.scm

                                     LOCAL                    SNAPSHOT-DIR(1C)

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