Answer / tajudidn

check out the how many user has login in, and maintain the
user account,maintain the momory space required of different
user

Answer / durgesh srivastava

i can maintain a users and her password information ther r
two types of file in a system like /etc/shadow
and /etc/passwd./etc/shadow is maintain a user password
information and /etc/passwd is maintain a user
informaition.and this file is totaly divid in to colons and
per colouns maintain a user and her password in formation
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