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Shell Programming and Scripting

AWK file comparing and composing

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# 8  
Old 05-30-2011
Thanks,

your suggestions are really appreciated.

I'm learning a lot, thanks to you all!
# 9  
Old 05-30-2011
awk
Code:
awk '{
	if (NR==FNR)
		_[$1]=$2
	else{
		if(exists _[$1])
			print $1" "$2" "_[$1]
		else
			__[$1]=sprintf("%s default",$0)
	}
}
END{
	for(i in __)
		print __[i]
}' b a

# 10  
Old 05-30-2011
Humm...

thanks but can you help me with some comments?

_[].. is completely unclear.

and...it's my fault.

thanks
# 11  
Old 05-30-2011
_[] is array, _ is the array name.

Think it as a[$1], a is the array name. then you will understand it.
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