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Sponsored by: Search | Newsletter | Conference | Tech Jobs O’Reilly’s Emerging Technology Conference: May 13-16, 2002 Articles Linux Apache MySQL Perl PHP Python BSD Essentials What is LAMP? The Best of ONLamp.com aboutSQL Big Scary Daemons FreeBSD Basics HTTP Wrangler Linux in the Enterprise Linux Network Administration The Linux Professional Perl P5P Digest Archive PHP Admin Basics PHP Phanatics Python_News Security Alerts Alphabetical Directory of Linux Commands This directory of Linux commands is from Linux in a Nutshell, 3rd Edition. Click on any of the 379 commands below to get a description and list of available options. All links in the command summaries point to the online version of the book on Safari Tech Books Online. Buy it now Read it online useradd [options] [user] System administration command. Create new user accounts or update default account information. Unless invoked with the -D option, user must be given. useradd will create new entries in system files. Home directories and initial files may also be created as needed. Options -c comment Comment field. -d dir Home directory. The default is to use user as the directory name under the home directory specified with the -D option. -e date Account expiration date. date is in the format MM/DD/YYYY. Twodigit year fields are also accepted. The value is stored as the number of days since January 1, 1970. This option requires the use of shadow passwords. -f days Permanently disable account this many days after the password has expired. A value of -1 disables this feature. This option requires the use of shadow passwords. -g group Initial group name or ID number. If a different default group has not been specified using the -D option, the default group is 1. -G groups Supplementary groups given by name or number in a comma-separated Sponsored by:
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