Linux getent Guide

Linux getent Guide

Complete beginner-friendly guide to getent on Linux, covering Arch Linux, CachyOS, and other distributions including database lookups, user information, and system database queries.

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Table of Contents

1. getent Basics
2. User Database
3. Group Database
4. Host Database
5. Troubleshooting

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getent Basics

Query Database

Basic usage:

# Query passwd database
getent passwd username

# Shows user information

All Entries

All users:

# All users
getent passwd

# Shows all user entries

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User Database

User Information

User lookup:

# User information
getent passwd username

# Shows:
# - Username
# - Password (x)
# - UID
# - GID
# - GECOS
# - Home directory
# - Shell

User ID

By UID:

# By UID
getent passwd 1000

# Finds user by UID

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‍‍‍ Group Database

Group Information

Group lookup:

# Group information
getent group groupname

# Shows group details

Group Members

Group members:

# Group members
getent group users

# Shows group members

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Host Database

Host Lookup

Host information:

# Host lookup
getent hosts hostname

# Shows host IP address

Services

Service lookup:

# Service lookup
getent services http

# Shows service information

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Troubleshooting

getent Not Found

Check installation:

# getent is part of glibc
# Usually pre-installed

# Check getent
which getent

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Summary

This guide covered getent usage, database lookups, and system database queries for Arch Linux, CachyOS, and other distributions.

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Next Steps

• id Guide - User and group IDs
• User and Groups - User management
• Networking - Network configuration
• getent Documentation: man getent

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This guide covers Arch Linux, CachyOS, and other Linux distributions. For distribution-specific details, refer to your distribution's documentation.