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lslogins

user managementLinux
The lslogins command is one of the most frequently used commands in Linux/Unix-like operating systems. lslogins Display information about user accounts
See ExamplesView Syntax

Quick Reference

Command Name:

lslogins

Category:

user management

Platform:

Linux

Basic Usage:

lslogins [options] [arguments]

Common Use Cases

    Syntax

    lslogins [options] [username...]

    Options

    Option Description
    -a, --acc-expiration Display account expiration information
    -c, --colon-separate Display data in colon-separated format
    -e, --export Display data in export format
    -f, --failed Display information about the last failed login
    -G, --supp-groups Display information about supplementary groups
    -g, --groups=groups Only show users belonging to the specified groups
    -L, --locks Display password lock status
    -l, --logins Display login information
    -n, --newline Display each piece of information on a new line
    -o, --output list Define which output columns to use
    -p, --pwd Display password expiration information
    -r, --raw Display data in raw format
    -s, --system-accs Display system accounts
    -u, --user-accs Display user accounts
    -z, --print0 Delimit user entries with a null character
    --time-format=type Show time in the specified format: short, full, iso
    -h, --help Display help information
    -V, --version Display version information

    Examples

    How to Use These Examples

    The examples below show common ways to use the lslogins command. Try them in your terminal to see the results. You can copy any example by clicking on the code block.

    Basic Examples:

    lslogins
    Display information about all user accounts.
    lslogins -u 1000
    Display information about the user with UID 1000.

    Advanced Examples:

    lslogins --user-accs
    Display information about user accounts only (no system accounts).
    lslogins -o UID,USER,LAST-LOGIN,FAILED-LOGIN Display only specific columns of information. lslogins -l Show extended information about users. lslogins -g wheel Display users belonging to the wheel group. lslogins --time-format=iso Display time fields in ISO format. lslogins -u 1000-2000 Display information for users with UIDs between 1000 and 2000. lslogins -L Show users' lock status. lslogins -e Display information about user accounts and their expiration.

    Try It Yourself

    Practice makes perfect! The best way to learn is by trying these examples on your own system with real files.

    Understanding Syntax

    Pay attention to the syntax coloring: commands, options, and file paths are highlighted differently.

    Notes

    The 'lslogins' command is a utility for displaying information about user accounts and login sessions on a Linux system. It provides a comprehensive view of user-related data, combining information from various system files including /etc/passwd, /etc/shadow, /var/log/lastlog, and others. Key features of the lslogins command: 1. Comprehensive User Information: lslogins provides detailed information about user accounts, including user IDs, group memberships, home directories, shells, and account creation dates. 2. Login History: The command can display information about the last login times, failed login attempts, and terminal locations from which users have logged in. 3. Account Security Status: lslogins can show account and password expiration dates, password age, and whether accounts are locked or have password requirements. 4. Flexible Output Format: The output can be customized to show only selected columns of information, and can be formatted in various ways (plain text, colon-separated, export format, etc.) for different use cases. 5. Account Filtering: Users can filter the output to show only specific types of accounts (system accounts, regular user accounts) or accounts belonging to specific groups. 6. Group Information: The command can display primary and supplementary group memberships for each user, helping to understand access permissions. 7. Integration with System Security: lslogins helps administrators audit user accounts and monitor login patterns, which is essential for system security. Common use cases for lslogins include: - System administration and user management - Security auditing of user accounts - Monitoring login activity on the system - Checking account expiration and password status - Generating reports about user accounts - Identifying inactive accounts - Troubleshooting user login issues lslogins is part of the util-linux package and is available on most modern Linux distributions. It's particularly useful for system administrators who need to manage multiple user accounts and monitor system access. The command is more powerful and flexible than traditional tools like 'who', 'last', or 'lastlog', as it combines functionality from multiple commands into a single, versatile utility with extensive formatting options. This makes it especially valuable for scripting and automated system management tasks where consistent, parsable output is required.

    Related Commands

    These commands are frequently used alongside lslogins or serve similar purposes:

    who
    last
    lastlog
    getent
    passwd
    usermod
    id
    Explore All Commands

    Use Cases

    Learn By Doing

    The best way to learn Linux commands is by practicing. Try out these examples in your terminal to build muscle memory and understand how the lslogins command works in different scenarios.

    See ExamplesTry Lab Exercises
    $ lslogins
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