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pattern match question

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# 1  
Old 08-16-2009
pattern match question
I have a pattern match problem I could use your help with

I have a file in the following format (names.txt)

jae,doe
john,doe
jay,doe

I need to loop through the file using FOR and check the names in names.txt against another file (information.txt).

information.txt is in the following format
jae,doe xxxxx xxxxxx xxxxxxxx xxxxxxx xxxxxx xxxxxxx xxxxxxxxx xxxxxx

or could be

xxxxxx xxxxxx jae,doe xxxxx xxxxxx xxxxxxxx xxxxxxxx xxxxxxxxx

at various points throughout the file

I need to be able to match $x (the variable from the for loop) against this information.txt file and print the line only if $x is in the first column of the file. In this particular situation $x can occur in the second, 3rd, 4th or 5th etc columns of the file. Anything but $x in the first column needs to be ignored.

Any ideas friends?

thanks
# 2  
Old 08-16-2009
Use grep...

Code:
grep $x

# 3  
Old 08-16-2009
If i got u right...Try...

Code:
 
awk 'NR==FNR{arr[$1]++}NR!=FNR{for(i in arr){if(i!=$1);print}}' names.txt information.txt

Last edited by malcomex999; 08-17-2009 at 05:44 AM..
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