└─$ cat pass.txt
January
Febuary
March
April
May
Password
Secret
└─$ for i in $(cat pass.txt); do echo $i; echo ${i}2020; echo ${i}2021; done 1 ⨯
January
January2020
January2021
Febuary
Febuary2020
Febuary2021
March
March2020
March2021
April
April2020
April2021
May
May2020
May2021
Password
Password2020
Password2021
Secret
Secret2020
Secret2021
└─$ for i in $(cat test.txt); do echo $i; echo ${i}\!; done
January
January!
January2020
January2020!
January2021
January2021!
Febuary
Febuary!
Febuary2020
Febuary2020!
Febuary2021
Febuary2021!
March
March!
March2020
March2020!
March2021
March2021!
April
April!
April2020
April2020!
April2021
sudo hashcat --force --stdout test.txt -r /usr/share/hashcat/rules/best64.rule | awk 'length($0) > 7'