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How to use if/else if with substr?

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# 1  
Old 04-03-2014
How to use if/else if with substr?
I have a command like this:

Code:
listdb ID923 -l |gawk '{if (substr($0,37,1)==1 && NR == 3)print "YES" else if (substr ($0,37,1)==0 && NR == 3)  print "NO"}'

This syntax doesn't work. But I was able to get this to work:

Code:
listdb ID923 -l |gawk '{if (substr($0,37,1)==1 && NR == 3)print "YES"}'

What is the error I am making?
Any help is appreciated; I am relatively new to awk
# 2  
Old 04-03-2014
It would help if you gave some sample outupt. It helps to break up the awk from a single line and use multi-lines to show the
inner-clauses of if, for example...pretend this was just awk
script the code would look like
Code:
{
if (substr($0,37,1)==1 && NR == 3)
    print "YES" 
 else if (substr ($0,37,1)==0 && NR == 3)  
      print "NO"
}

you also didn't post why "this doesn't work". Provide some sample input and show the results of what you say.
# 3  
Old 04-03-2014
Quote:
Originally Posted by newbie2010
I have a command like this:

Code:
listdb ID923 -l |gawk '{if (substr($0,37,1)==1 && NR == 3)print "YES" else if (substr ($0,37,1)==0 && NR == 3)  print "NO"}'

This syntax doesn't work. But I was able to get this to work:

Code:
listdb ID923 -l |gawk '{if (substr($0,37,1)==1 && NR == 3)print "YES"}'

What is the error I am making?
Any help is appreciated; I am relatively new to awk
Code:
listdb ID923 -l |gawk '{if (substr($0,37,1)==1 && NR == 3)print "YES"; else if (substr ($0,37,1)==0 && NR == 3)  print "NO"}'

Did you miss semicolon ?
# 4  
Old 04-03-2014
Looking at the awk code,
you are missing either a newline or a semicolon or
a { block }:
Code:
gawk '{if (substr($0,37,1)==1 && NR == 3) {print "YES"} else if (substr ($0,37,1)==0 && NR == 3) print "NO"}'

It's probably a good habit to always put the if-action in a { block }:
Code:
gawk '{if (substr($0,37,1)==1 && NR == 3) {print "YES"} else if (substr ($0,37,1)==0 && NR == 3) {print "NO"}}'

This User Gave Thanks to MadeInGermany For This Post:
newbie2010
# 5  
Old 04-04-2014
Thanks!
Belated, but I found this out right before your post, MadeInGermany. But thanks for confirming. Sometimes it's hard to see those punctuation marks! Everything works now.

Thanks, All!
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