advanced awk


 
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# 8  
Old 03-31-2010
Quote:
Originally Posted by alister
There's nothing wrong with those two lines. BEGIN and END are syntactically no different from any other pattern. So long as the corresponding action begins on the same line (the opening curly brace is sufficient), it's fine.
[...]
Exactly!
I posted a working code ...
See the OP's code Smilie

Last edited by radoulov; 03-31-2010 at 04:44 PM..
# 9  
Old 03-31-2010
My apologies, radoulov. I misunderstood what was going on (that's twice in this thread, the first was edited away Smilie).

Cheers,
Alister
# 10  
Old 03-31-2010
Another variation:
Code:
awk 'NF-1{g=$1} $NF==u{print g}' u=user1 infile

# 11  
Old 03-31-2010
Quote:
Originally Posted by alister
My apologies, radoulov.
No problem Smilie

---------- Post updated at 10:04 PM ---------- Previous update was at 10:01 PM ----------

Quote:
Originally Posted by Scrutinizer
[...]
Code:
$NF==u

Good point,
I suppose the OP meant == not ~ .

---------- Post updated at 10:21 PM ---------- Previous update was at 10:04 PM ----------

Quote:
Originally Posted by alister
There's nothing wrong with those two lines. BEGIN and END are syntactically no different from any other pattern. So long as the corresponding action begins on the same line (the opening curly brace is sufficient), it's fine.
[...]
Just to add that the special patterns BEGIN and END are actually syntactically different from the regular patterns because they require an action part.
# 12  
Old 04-01-2010
Thank you guys, you helped a lot Smilie
# 13  
Old 04-01-2010
Code:
nawk -v U="user1" 'NF>1{cgrp[x=$1]++ }($NF==U)&&cgrp[x]{print x}'

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