P

.profile file

customizing.profile File

passwd command

assigning user password withHow to Add a User

passwd file

fields in

Default passwd File Entries

Fields in the passwd File

user ID number assignment andReserved UID Numbers

passwords (user)

agingWhere User Account and Group Information Is Stored

assigning to usersHow to Add a User

changing

by userUser Passwords

frequency ofUser Passwords

choosingUser Passwords

encryptionWhere User Account and Group Information Is Stored

precautionsUser Passwords

PATH environment variable

PATH Environment Variable

Shell and Environment Variable Descriptions

permissions

file defaultsDefault File Permissions (umask)

primary groups

UNIX Groups

UNIX Groups

PS1 environment variableShell and Environment Variable Descriptions

pseudo user loginsReserved UID Numbers

pseudo-ttysReserved UID Numbers