Checking if our password is based on a dictionary word on linux command line

There is a package in linux that can be used to check the our password, if it is based on a dictionary word, and that is libcrack (or libcrack2 in debian based).

To install the package:

• In redhat family:

# yum install cracklib -y

• In debian family:

# apt install libcrack2

To use, just run cat and pipe it against cracklib-check command, and supply your password after that. Do not forget to type ctrl-d or ctrl-c to get back to the shell, once done.

$ cat | cracklib-check

password 

password: it is based on a dictionary word

$ cat | cracklib-check

Xeir3oongex*

Xeir3oongex*: OK