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Top Forums Shell Programming and Scripting Split: File into multiple and keeping the same 3 lines from input into all output files Post 302742219 by rdcwayx on Monday 10th of December 2012 07:30:33 PM
Old 12-10-2012
no output after run the command, but you will have several new files generated : file1 file2 etc.

Code:
awk 'NR<4{s=s==""?$0:s RS $0;next} {a=s RS $0;getline;print a RS $0 > "file" ++i ;a=""}' infile

 

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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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