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Full Discussion: awk problem with syntax
Top Forums Shell Programming and Scripting awk problem with syntax Post 302869027 by Don Cragun on Tuesday 29th of October 2013 01:26:44 PM
Old 10-29-2013
Yoda's fix will give you a working program that counts the number of lines from line number 101 through line number 199 that contain "lemons" and that contain "dogs" and print them at the end. But, you didn't tell us what this script is supposed to do.

Another way to read what you were trying to do would be print lines 101 through 199 from your input file and at the end print the number of lines in the entire file that contaied "dogs" and the number of lines in the entire file that contained "lemons". If that was your intent, the one character change marked in red below to your original script should work:
Code:
awk -v sw="lemons|dogs" 'NR>100 && NR<200;BEGIN { c=split(sw,a,"[|]"); } { for (w in a) { if ($0 ~ a[w]) d[a[w]]++; } }
END { for (i in a) { o=o (a[i]"="(d[a[i]]?d[a[i]]:0)","); }
  sub(",*$","",o); print o;
}' /home/jahitt/data.txt

Although I prefer more readable code like:
Code:
awk -v sw="lemons|dogs" '
NR>100 && NR<200
BEGIN { c=split(sw,a,"[|]")
}
{       for (w in a) {
                if ($0 ~ a[w])
                        d[a[w]]++
        }
}
END {   for (i in a) {
                o=o (a[i]"="(d[a[i]]?d[a[i]]:0)",")
        }
        sub(",*$","",o)
        print o
}' /home/jahitt/data.txt

If your input file contained:
Code:
lemons and dogs
lemons only
cats and dogs
dogs only
cats only
lemons and cats and dogs

the above scripts produce:
Code:
dogs=4,lemons=3

but the output order is unspecified.
Last edited by Don Cragun; 10-29-2013 at 02:28 PM.. Reason: Fix typo; both scripts produce the same data.
This User Gave Thanks to Don Cragun For This Post:
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wc

WC(1)									FSF								     WC(1)

NAME

       wc - print the number of bytes, words, and lines in files

SYNOPSIS

       wc [OPTION]... [FILE]...

DESCRIPTION

       Print  byte, word, and newline counts for each FILE, and a total line if more than one FILE is specified.  With no FILE, or when FILE is -,
       read standard input.

       -c, --bytes
	      print the byte counts

       -m, --chars
	      print the character counts

       -l, --lines
	      print the newline counts

       -L, --max-line-length
	      print the length of the longest line

       -w, --words
	      print the word counts

       --help display this help and exit

       --version
	      output version information and exit

AUTHOR

       Written by Paul Rubin and David MacKenzie.

REPORTING BUGS

       Report bugs to <bug-coreutils@gnu.org>.

COPYRIGHT

       Copyright (C) 2002 Free Software Foundation, Inc.
       This is free software; see the source for copying conditions.  There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICU-
       LAR PURPOSE.

SEE ALSO

       The full documentation for wc is maintained as a Texinfo manual.  If the info and wc programs are properly installed at your site, the com-
       mand

	      info wc

       should give you access to the complete manual.

wc (coreutils) 4.5.3						   February 2003							     WC(1)
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