User

Abstract

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• Person authorized to use the system

Linux User

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Based on Unix & POSIX

# List All Users
cut -d: -f1 /etc/passwd
 
# Obtain User Info
id <USER_NAME>
 
# Obtain Current User Info
who

Terminologies

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UID

• Stands for User IDentification
• A number that is assigned to each User by System Administrator
• One is assigned to Superuser (UNIX)

User Group

• Assigned a Group IDentification (GID)
• User can be members of the group