I always used the following command to filter out my contacts email addresses from a directory in Kali Linux:
grep -rIhEo "\b[a-zA-Z0-9._-]+@[a-zA-Z0-9._-]+\.[a-zA-Z0-9._-]+\b" >> 1A
I tried it in Ubuntu now and its not working. There is no error message, just its doing something but without result and end. Why?
I tried with Ubuntu 12.04 and Xubuntu 12.04.