developer.com - Reference Click here to support our advertisers SHOPPING JOB BANK CLASSIFIEDS DIRECTORIES REFERENCE Online Library LEARNING CENTER JOURNAL NEWS CENTRAL DOWNLOADS COMMUNITY CALENDAR ABOUT US Journal: Get the weekly email highlights from the most popular journal for developers! Current issue developer.com developerdirect.com htmlgoodies.com javagoodies.com jars.com intranetjournal.com javascripts.com All Categories : Linux developer.com - Reference Click here to support our advertisers SHOPPING JOB BANK CLASSIFIEDS DIRECTORIES REFERENCE Online Library LEARNING CENTER JOURNAL NEWS CENTRAL DOWNLOADS COMMUNITY CALENDAR ABOUT US Journal: Get the weekly email highlights from the most popular journal for developers! Current issue developer.com developerdirect.com htmlgoodies.com javagoodies.com jars.com intranetjournal.com javascripts.com Linux - 41 - Users The Superuser Account WARNING User Accounts: /etc/passwd Listing 41.1. The /etc/passwd file created when Linux is first installed. User Names Passwords NOTE User ID Group ID Comments Home Directory Login Command Default System User Names Adding Users CAUTION Deleting Users Groups Listing 41.2. The default /etc/group file. Default System Groups Adding a Group Adding a User to New Groups Deleting a Group The su Command Summary