gshadowThe gshadow is group password file, It is used for encrypted passwords of group. It is also as like shadow file. It is located at /etc/gshadow.The normal user can's view this and root user only can view and edit.
Location : /etc/gshadow
1 - Group Name : It is name of group.
2 - Encrypted Password : It is current hash of the group's encrypted password. The encrypted password consists of characters from the 64-character alphabet a thru z, A thru Z, 0 thru 9, \. and /. If in encrypted password edited with ! or *, the user will not be able to use a unix password to log in.
3 - Administrators : The list of administrative users separated by comma. This will be done with "gpasswd -A"
4 - Members : The list of members separated by comma.
* Use man pages for more help.