Quote:
Originally Posted by vgersh99
instead of while/getline combo for reading the files, you could could use a separate combos of FILENAME/ARGV and read the files into arrays. Checking the content of 'filea' in multiple read-in arrays should be straight-forward.
Search the forums for the terms mentioned above and it should give you enough as a starting hint.
Good luck.
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All,
Here is my effort:
Code:
BEGIN {FS=","}
for (i=0;i< ARGC;i++)
{ARGV[i]=="fileb"{b[$1]++}
ARGV[i]=="filec"{c[$1]++}
ARGV[i]=="filed"{d[$1]++}
ARGV[i]=="filea"{if (($1 in b ) && ( $1 in c) && ($1 in d)) print $1,"Y" OFS
else
if (($1 in d) && !($1 in c) && !($1 in b)) print $1 OFS,"Y"
else
if (($1 in b) && ($1 in c) && !($1 in d)) print $1,"Y"OFS
else print $1 OFS OFS
}} OFS=","
