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10.17.2006 at 10:26AM PDT, ID: 22027696
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8.2

awk one liner help

Asked by aflat362 in Programming Languages

Tags: , , , ,

I'm new to awk.  I'd like to have an awk program that does the following:

processes an input file
looks for lines in the input file that have a form feed character that is NOT preceeded by a newline character
regular expression for this:  /[^\n]\f/

If there is no matching pattern, simply write the current line to an output file.

If there is a matching pattern, insert a newline character before the form feed character and then write to same output file.

for reference, \f is a form feed character which is hex '0C'  the newline character I want to insert is a CRLF or hex '0D 0A'

I know the basic syntax of an awk command and here's kind of what I want to do:

awk 'program' inputfile.txt > outputfile.txt

I have tested the regular expression - I just need help putting the syntax together for the "program" part of it
to do what I described above.

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[+][-]10.17.2006 at 10:33AM PDT, ID: 17749943

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[+][-]10.17.2006 at 10:45AM PDT, ID: 17750096

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About this solution

Zone: Programming Languages
Tags: awk, liner, insert, newline, one
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Solution Provided By: ozo
Participating Experts: 1
Solution Grade: A
 
 
[+][-]10.17.2006 at 10:48AM PDT, ID: 17750118

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[+][-]10.17.2006 at 10:50AM PDT, ID: 17750139

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[+][-]10.17.2006 at 11:51AM PDT, ID: 17750700

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