grep - to exclude lines beginning with pattern

11132
13069
11137
11142
13070

Can I use grep command to exclude all lines beginning with 13?
I dont want to use grep -v 13 as potentially there will be a number with something like 11013 that I would exclude in error..

You can have a regex as a search pattern for grep.

grep -v '^13' myfile

Vino

Perfect- couldnt remember the syntax..

Thanks!!