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    egrep "[0-9]{2}" not working

    Hello, Im sorry to bother you with this, but I´m new to this and need help to get it working properly. I need to get only the lines that don´t start with number and have two digit number in them. I have this command: cat /etc/group | egrep -v "^[0-9]" | egrep "[0-9]{2}" And the problem is...