File comaprsons for the Huge data files ( around 60G) - Need optimized and teh best way to do this Post: 303025153

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imgrep

IMGREP(1p)						     Internet Message commands							IMGREP(1p)

NAME

       imgrep - search for mail/news messages

SYNOPSIS

       imgrep [OPTIONS] [FOLDER] [RANGE]

DESCRIPTION

       The imgrep command enumerates mail/news messages matched given patterns.

       This command is provided by IM (Internet Message).

OPTIONS

       -s, --src=FOLDER,FOLDER...
	    message source: "+folder:[range[,range..]]".

	    "--src=+xxx" is equivalent to "+xxx".

       -f, --format=STRING
	    Output format: "number", "folder", or "path".

	    (default: "number" for single target folder, "path" for multiple target folders)

       -c, --casefold={on,off}
	    Case sensitivity.  (This option affects both fieldname and pattern.)

	    Default value is "on".

       -e, --expression=STRING
	    Search expression:

	    Usable keyword

		    & &&    logical AND

		    | ||    logical OR

		    !	    logical NOT

		    ( )     parens

		    fieldname=pattern	    search pattern for the field

	    Special fieldname:

		    head    Entire header

		    body    Entire body

		    all     Entire message

       -d, --delimiter=STRING
	    Mail header delimiter.

	    Default value is "

|
----
".

       -D, --dupchecktarget=STRING
	    Duplicate check target ('none', 'message-id', or 'message-id+subject').  Default value is 'none'.

       -q, --quiet={on,off}
	    Do not show any messages.

       -v, --verbose={on,off}
	    Print verbose messages when running.

       --debug=DEBUG_OPTION
	    Print debug messages when running.

       -h, --help
	    Display help message and exit.

       --version
	    Output version information and exit.

COPYRIGHT

       IM (Internet Message) is copyrighted by IM developing team.  You can redistribute it and/or modify it under the modified BSD license.  See
       the copyright file for more details.

IM151								    2011-05-25								IMGREP(1p)