UNIX for Dummies Questions & Answers

Hi,

I am trying to use AWK to do some editing and formating of large tables of numbers and I am having trouble getting it to work. For brevities sake, I won't show the whole table, but I have a sample set of code:

und$ awk '{($2+0) > 50;print $1}' temp
2000 147
2008 128
2002 100
1999 47
2010 1000

When I enter the awk command it prints the whole list, but I would expect that it should not print 1999 47. Is there a syntax error?

Code:

awk '($2+0) > 50 {print $1}' temp

Thanks a lot! I am working through Unix for Computational Biology and I guess they didn't explain the curly brackets in the parts I read.