Modify pno.sh

Signed-off-by: Eli Qiao <taget@linux.vnet.ibm.com>
add example/awk

Signed-off-by: Eli Qiao <taget@linux.vnet.ibm.com>
modify password of intronet
add compute length of string

Signed-off-by: Eli Qiao <taget@linux.vnet.ibm.com>
add test cases

Signed-off-by: Eli Qiao <taget@linux.vnet.ibm.com>