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Forum: UNIX for Dummies Questions & Answers 05-02-2013

Remove lines in a positional file based on string value

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No need for a while loop to read line by line....

No need for a while loop to read line by line. You can achieve this by using below awk code:
awk 'substr($0,11,1)=="Y"' input > output

Forum: UNIX for Dummies Questions & Answers 05-02-2013

Remove lines in a positional file based on string value

1,480

Posted By

Perhaps a simpler approach?

$ cat sample31.txt
DTLDETAIL1YAPPLE
DTLDETAIL2YBALL
DTLDETAIL3NCAT
DTLDETAIL4NDOG
DTLDETAIL5YFISH

$ awk '{if (substr($0,11,1)=="Y") print $0}' <sample31.txt
DTLDETAIL1YAPPLE
DTLDETAIL2YBALL...

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