Grep options

 To grep two words on a file 

            grep -E 'RoleName|RoleId' /tmp/roles.txt

            grep -e RoleName -e RoleId /tmp/roles.txt

To grep Before and after lines from a file

            grep -B1 -A1 RoleId /tmp/roles.txt

To find the IAM Roles on a AWS account

        aws iam list-roles > /tmp/roles.txt