shadowv4.2.1

Introduction

shadow includes the following tools:

chage (1)change user password expiry information
chfn (1)change real user name and information
chsh (1)change login shell
expiry (1)check and enforce password expiration policy
gpasswd (1)administer the /etc/group file
login (1)begin session on the system
newgrp (1)log in to a new group
passwd (1)change user password
sg (1)execute command as different group ID
su (1)change user ID or become superuser
faillog (5)login failure logging file
gshadow (5)shadowed group file
login.defs (5)shadow password suite configuration
passwd (5)the password file
shadow (5)encrypted password file
chgpasswd (8)update group passwords in batch mode
chpasswd (8)update passwords in batch mode
faillog (8)display faillog records or set login failure limits
groupadd (8)create a new group
groupdel (8)delete a group
groupmod (8)modify a group definition on the system
grpck (8)verify integrity of group files
grpconv (8)convert to and from shadow passwords and groups
grpunconv (8)convert to and from shadow passwords and groups
lastlog (8)reports the most recent login of all users or of a given user
newusers (8)update and create new users in batch
nologin (8)politely refuse a login
pwck (8)verify integrity of password files
pwconv (8)convert to and from shadow passwords and groups
pwunconv (8)convert to and from shadow passwords and groups
useradd (8)create a new user or update default new user information
userdel (8)delete a user account and related files
usermod (8)modify a user account
vigr (8)edit the password, group, shadow-password or shadow-group file
vipw (8)edit the password, group, shadow-password or shadow-group file
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