Login shell script

[rawatds]

Hi
I want a shell script which run when user is trying to change its password in UNIX .
The string for password should validate the following :
1) Should be 2-8 character in length
2) There should be no !,@,#,$ character
3) 1st character should always be letter
4) at least 1 character is in lower case

thnaks in advance
rawat

 

[PHV]

man goodpw

Hope This Helps, PH.
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[rawatds]

Hi
I search in the man goodpw but in my /usr/lib i couldnot find goodpw file
also in passwd file in /etc/default i could get only for minimun character i.e. PASSLENGTH=6
but not for other constraints .
Any help
Regards
rawat