How to extract some parts of a file to create some outfile


 
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Old 05-08-2009
Hallo ghostdog74,
Thanks for your reply. But I am sorry to say that I forgot to mention : in my input file there are not always only 6 lines. I just copied some lines.. This lines varies from 100 to 200. So it is necessary for the program to read +++++++++End.

Thanks a lot,
Mitra.
 
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FILTERGEN(8)						      System Manager's Manual						      FILTERGEN(8)

NAME
filtergen - packet filter compiler SYNOPSIS
filtergen [ -h | --help ] [ -V | --version ] [ -c | --compile ] [ -t target | --target=target ] [ -o outfile | --output=outfile ] infile filtergen [ -h | --help ] [ -V | --version ] [ -c | --compile ] [ -t target | --target=target ] [ -o outfile | --output=outfile ] [ -F pol- icy | --flush=policy ] DESCRIPTION
filtergen compiles a high-level filtering description language into a variety of target formats. USAGE
filtergen reads the ruleset from the infile specified on the command line (or standard input if infile is "-") and outputs to standard out- put (or outfile) via an optionally specified backend. Both short and GNU-style long option options are accepted: -c, --compile Only try to "compile" the input, and do not generate any output. This may be useful to check that an input file has no syntax errors in it before one attempts to use the result on a live server. -t target-filter, --target=target-filter If specified, target-filter will be used to select an output filter type, otherwise the default of iptables will be used. Supported backends are iptables, ipchains, ipfilter and cisco (for Cisco IOS access-lists). -F policy, --flush=policy Flush mode. Generate a set of rules for clearing all rules from the packet filter. Useful for firewall scripts that need to `shut- down' the firewall. You can supply a policy argument in place of the usual filename, to specify whether the flushed filter should default to accept, reject, or drop. It defaults to accept, equivalent to having no filter loaded at all. It is not necessary to specify an infile when using flush mode. -o outfile, --output=outfile Write output to outfile instead of standard output. -h, --help Show command help. -V, --version Show program version. BUGS
Not all backends implement all features. The packet filter is not optimised. SEE ALSO
fgadm(8), filter_syntax(5), filter_backends(7) AUTHOR
filtergen was originally written by Matthew Kirkwood. Jamie Wilkinson <jaq@spacepants.org> then rewrote a lot of the internals, added some features, and took on maintenance of the project. January 7, 2004 FILTERGEN(8)