# checkpw checkpw is a program that checks the validity of a users password on a Linux/PAM-based system. ``` Usage: ./checkpw [-u ] [-p ] [-i] [-v] [-h] Options: -u Specify username. -p Specify password. -i Enable interactive mode to prompt for missing username/password. -v Enable verbose mode. -h Show this help ``` Returns 0 on success, 1 otherwise. ``` echo $? ``` # Installation: ``` git clone https://git.xw3.org/hanez/checkpw.git cd checkpw gcc -lpam -lpam_misc -Werror -o checkpw checkpw.c ```