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Top Forums Shell Programming and Scripting Count delimiter(~|*) each row in a file and return 1 or 0 Post 302958864 by Don Cragun on Tuesday 27th of October 2015 01:56:04 AM
Old 10-27-2015
Quote:
Originally Posted by MOHANP12
Hi Don Cragun

Thanks

Code:
delim_flag=0
awk -F '[~][|][*]' 'BEGIN{delim_flag=0} NF != 30 {delim_flag=1} END{print delim_flag}' "filname"`


This code is working fine. This code test that file contain delimiter as ~|* if any character is missing in any line example ~| or ~* or |* then return 1 or 0

Thanks man you save my day
Note that your code above has an unmatched backquote at the end of the awk command. And, the awk command and the assignment to the shell variable delim_flag are completely independent and do not affect each other in any way.

Furthermore, the awk command I suggested (modified to look for 29 field delimiters instead of 3:
Code:
awk -F '[~][|][*]' 'NF!=30{x=1;exit}END{print x+0}' file

produces the same results as your awk command, but runs faster if any lines are found in your input file that do not contain the desired number of field delimiters. (Your code reads every line in the input file; my suggested code stops reading the input file as soon as it finds a line that does not contain the specified number of fields.)

If you are trying to set a shell variable to a value to indicate whether or not an error (a line with the wrong number of delimiters) was found, the way to do that would be something like:
Code:
delim_flag="$(awk -F '[~][|][*]' 'NF!=30{x=1;exit}END{print x+0}' file)"

 

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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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