I am attempting to to only keep customers that contain certain words. Here is an example

< newname.txt awk 'BEGIN {FS=","} $7~/USA|United States/' > usa.txt

The problem I am having is if they had usa, UNITED STATES or UnItEd StAtEs then they would not export due to them being capitals. How can I run this command without writing the same word multiple times with capitals/lowercase.

2 Answers 2


You can try to cheat it with using tolower or toupper:

awk 'BEGIN {FS=","} tolower($7)~/usa|united states/'


awk 'BEGIN {FS=","} toupper($7)~/USA|UNITED STATES/'

You can use the IGNORECASE flag (!=0) to ignore the case on all regular expressions. At least that is gawk.

As requested: an example

echo "eXaMpLe"|awk '{IGNORECASE=1}
/example/ { print $0; }
  • 1
    You've got half an answer: please show a demonstration. Jun 18, 2015 at 22:25

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