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Full Discussion: Regular Expression Error in AWK
Top Forums UNIX for Advanced & Expert Users Regular Expression Error in AWK Post 302205918 by madhunk on Monday 16th of June 2008 01:41:42 PM
Old 06-16-2008
Regular Expression Error in AWK
I have a file "fwcsales_filenames.txt" which has a list of file names that are supposed to be copied to another directory. In addition to that, I am trying to extract the date part and write to the log.

I am getting the regular expression error when trying to strip the date part using the "ll" command. But I was able to count the number of records for each filename inside the list.

Please let me know what mistake I am doing here while usine AWK to print the date part.

Code:
while read FILENAME
do
  cp ${FTP}/$FILENAME ${EXPORT}/nz.$FILENAME
  if [ $? -eq 0 ]
    then
      let NUM_COPIED=`expr $NUM_COPIED+1`
     DAY=$(ll $FTP | awk '/$FILENAME/ {print $6 $7 substr($8,1,5)}' )
     echo "*** FTP file from $DAY "
     RECORDS=$(cat $FTP/$FILENAME |wc -l )
     echo '*** Number of $FILENAME records = ' $RECORDS
  fi
  done < ${FTP}/fwcsales_filenames.txt

HTML Code:
Output:
awk: There is a regular expression error.
        Invalid pattern.
 The input line number is 1.
 The source line number is 1.
*** FTP file from
*** Number of $FILENAME records =  256
 

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LEARN ABOUT DEBIAN

igawk

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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