Ok, so after spending 2 days, I am not able solve it and I am almost out of time now. It might be a very silly question, so please bear with me. My awk script does something like this:
BEGIN{ n=50; i=n; }
FNR==NR {
# Read file-1, which has just 1 column
ids[$1]=int(i++/n);
next
}
{
# Read file-2 which has 4 columns
# Do something
next
}
END {...}
It works fine. But now I want to extend it to read 3 files. Let's say, instead of hard-coding the value of "n", I need to read a properties file and set value of "n" from that. I found this question and have tried something like this:
BEGIN{ n=0; i=0; }
FNR==NR {
# Block A
# Try to read file-0
next
}
{
# Block B
# Read file-1, which has just 1 column
next
}
{
# Block C
# Read file-2 which has 4 columns
# Do something
next
}
END {...}
But it is not working. Block A is executed for file-0, I am able to read the property from properties files. But Block B is executed for both files file-1 and file-2. And Block C is never executed.
Can someone please help me solve this? I have never used awk before and the syntax is very confusing. Also, if someone can explain how awk reads input from different files, that will be very helpful.
Please let me know if I need to add more details to the question.