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Full Discussion: Split file based on number of blank lines
Top Forums UNIX for Dummies Questions & Answers Split file based on number of blank lines Post 302895651 by Yoda on Tuesday 1st of April 2014 03:13:38 PM
Old 04-01-2014
Quote:
Originally Posted by Pratik4891
Thanks Yoda,could you please explain the solution ?
Sure, for each non-zero number of field records, the program construct a variable s with value separated by RS (newline by default)
Code:
s = s ? s RS $0 : $0

Once a zero number of field record is encountered and s value is not null, it stores the record as key into an associative array: A

Finally in the END rule, the program writes each key in the array to a file.
This User Gave Thanks to Yoda For This Post:
Pratik4891
 

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LEARN ABOUT DEBIAN

flow-split

flow-split(1)						      General Commands Manual						     flow-split(1)

NAME

       flow-split -- Split flow files into smaller files.

SYNOPSIS

       flow-split [-gGhn]  [-b big|little]  [-C comment]  [-d debug_level]  [-N nflows]  [-o outfile_basename]	[-T nseconds]  [-z z_level]

DESCRIPTION

       The flow-split utility will split a flow file into smaller files based on the the number of flows or the ammount of time that has passed.

OPTIONS

       -b big|little
		 Byte order of output.

       -C Comment
		 Add a comment.

       -d debug_level
		 Enable debugging.

       -g	 Split on source tag.

       -G	 Split on destination tag.

       -h	 Display help.

       -n	 Use symbols for tag field in filename.

       -N nflows Split after processing nflows.

       -o outfile_basename
		 The basename of the resulting files.

       -T nsecond
		 Split after processing an interval of nseconds flows.

       -z z_level
		 Configure compression level to  z_level.  0 is disabled (no compression), 9 is highest compression.

EXAMPLES

       Create 1 minute flow files from the flow archive in /flows/krc4.  Store the results in /flows/krc4.split

	 flow-cat /flows/krc4 | flow-split -T60 -o /flows/krc4.split/1min.

BUGS

       None known.

AUTHOR

       Mark Fullmer maf@splintered.net

SEE ALSO

       flow-tools(1)

																     flow-split(1)
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