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Top Forums UNIX for Dummies Questions & Answers Pull out multiple lines with grep patternfile Post 302784785 by FGPonce on Saturday 23rd of March 2013 04:47:18 AM
Old 03-23-2013
Pull out multiple lines with grep patternfile

Hi,
I'm trying to get lines from a file using identifiers in the first two columns. I have used:

cat MasterFile.txt | grep -f Pattern.txt

and the lines I want display on screen. If I try to put them in a file the file is created but stays empty:

cat MasterFile.txt | grep -f Pattern.txt > output.txt

Also: If I use the whole pattern file (tested with 12 top lines from my pattern file to start) it doesn't even display on screen.....

Any ideas how I can do this? Very frustrating that the process seems to work but then hit the brick wall!!!
 

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

NAME
flow-rptfmt -- Format the output of flow-report in ASCII or HTML SYNOPSIS
flow-rptfmt [-hHnp] [-a alarm_time] [-f format] [-F fields] [-m max_lines] [-s sort_field] DESCRIPTION
The flow-rptfmt utility processes the CSV output of flow-report into formatted ASCII or HTML. Sorting, maximum display lines, field fil- ter, header display, and name substitution are supported during post processing. Additionally an alarm can be set for use in CGI scripts to limit the CPU time of formatting. OPTIONS
-a alarm_time Exit after alarm_time seconds. -f ascii|html Set output format. Defaults to ASCII. -F display_fields Limit columns to display_fields -h Help. -H Display header information. -m max_lines Limit rows to max_lines. -n Enable symbol table lookups. -p Display in percent total form. -s sort_field Sort on sort_field. Prepend with + for ascending, - for descending sort. EXAMPLES
Format the output of daily-ip-protocol.txt in ASCII. Display the ip-protocol and octets fields in percent total format with symbols. Limit output to top 5 sorted by octets. cat daily-ip-protocol.txt | flow-rptfmt -fascii -Fip-protocol,octets -p -n -m5 BUGS
Sorting could be faster. Percent totals could be faster. May not work with flow-report prior to 0.68. AUTHOR
Mark Fullmer maf@splintered.net SEE ALSO
flow-tools(1) flow-rptfmt(1)
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