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Full Discussion: Help with greping a field
Top Forums UNIX for Dummies Questions & Answers Help with greping a field Post 40064 by oombera on Monday 8th of September 2003 09:45:17 AM
Old 09-08-2003
I'm not sure exactly how to help with this...

If you're sure the Invoice number will always be on the last line of the file and that there are no other colons (:) on the line, then you could use:

tail -1 text | awk -F":" '{print $2}'

If you're sure the last line will always be the same length, then you could use:

tail -1 text | awk '{print substr ($0, 280, 71)}'

From looking at your data, I don't think you could make either of these assumptions, but I'm not sure what else to suggest.
 

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IGAWK(1)							 Utility Commands							  IGAWK(1)

NAME
igawk - gawk with include files SYNOPSIS
igawk [ all gawk options ] -f program-file [ -- ] file ... igawk [ all gawk options ] [ -- ] program-text file ... DESCRIPTION
Igawk is a simple shell script that adds the ability to have ``include files'' to gawk(1). AWK programs for igawk are the same as for gawk, except that, in addition, you may have lines like @include getopt.awk in your program to include the file getopt.awk from either the current directory or one of the other directories in the search path. OPTIONS
See gawk(1) for a full description of the AWK language and the options that gawk supports. EXAMPLES
cat << EOF > test.awk @include getopt.awk BEGIN { while (getopt(ARGC, ARGV, "am:q") != -1) ... } EOF igawk -f test.awk SEE ALSO
gawk(1) Effective AWK Programming, Edition 1.0, published by the Free Software Foundation, 1995. AUTHOR
Arnold Robbins (arnold@skeeve.com). Free Software Foundation Nov 3 1999 IGAWK(1)
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