Password Regex


        
            
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            Password Regular expression:

Site: https://regex101.com/

Password must contain at least one letter, at least one number, and be longer than six charaters.
Expression:
^(?=.*[0-9]+.*)(?=.*[a-zA-Z]+.*)[0-9a-zA-Z]{6,}$
Example text:
198633
Pedro
P3dro
P3droM

The password's first character must be a letter, it must contain at least 4 characters and no more than 15 characters and no characters other than letters, numbers and the underscore may be used
Expression:
^[a-zA-Z]\w{3,14}$
Example text:
198633
Pedro
P3dro
P3droM
Abcdefghijklmno
Abcdefghijklmnopa

Password must be at least 4 characters, no more than 8 characters, and must include at least one upper case letter, one lower case letter, and one numeric digit.
Expression:
^(?=.*\d)(?=.*[a-z])(?=.*[A-Z]).{4,8}$
Example text:
198633
Pedro
pedro
P3dro