UNIX for Dummies Questions & Answers

I have i/p file with following text -->
456 StreetA Rd (702) 456-7890
123 StreetB Rd 345-5678
789 StreetC Rd 123-8765
356 StreetD Rd (702) 657-3456


I want o/p file like below -->
456 StreetA Rd (702) 456-7890
123 StreetB Rd (702) 345-5678
789 StreetC Rd (702) 123-8765
356 StreetD Rd (702) 657-3456

Basically If text "(702)" is missing in each line, then i want to append (702) after text 'Rd '

assume the name of the input file is a.txt

you do

grep " Rd (702)" a.txt > b.txt

grep -v "Rd (702)" a.txt | sed -e '/s/rd/rd \(702\)/' >> b.txt

Now you required output will be in the file b.txt

Thanks
R Ramkumar

Code:

sed -e '/[^)] [-0-9][-0-9]*$/s/[^ ][^ ]*$/(702) &/' myFile.txt