This subchapter looks at su, a UNIX (and Linux) command.
Teach Yourself UNIX/Linux System Administration and Shell Programming
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This subchapter looks at su, a UNIX (and Linux) command.
su is used to switch user accounts.
You can use the su command to switch another user account. This allows a system administrator to fix things signed in to a particular user’s account rather than from the root account, including using the user’s settings and privileges and accesses rather than those of root.
On November 8, 2010, Ramesh Natarajan named this the number 44 most frequently used UNIX/Linux command at this web page 50 Most Frequently Used UNIX / Linux Commands (With Examples).
Coding example: I am making heavily documented and explained open source code for a method to play music for free — almost any song, no subscription fees, no download costs, no advertisements, all completely legal. This is done by building a front-end to YouTube (which checks the copyright permissions for you).
View music player in action: www.musicinpublic.com/.
Create your own copy from the original source code/ (presented for learning programming).
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free downloadable system administrator and shell programming book
Because I no longer have the computer and software to make PDFs, the book is available as an HTML file, which you can convert into a PDF.
Teach Yourself UNIX/Linux System Administration and Shell Programming
Building a free downloadable text book on computer programming for university, college, community college, and high school classes in computer programming.
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Some or all of the material on this web page appears in the
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This web site handcrafted on Macintosh computers using Tom Bender’s Tex-Edit Plus and served using FreeBSD .
†UNIX used as a generic term unless specifically used as a trademark (such as in the phrase “UNIX certified”). UNIX is a registered trademark in the United States and other countries, licensed exclusively through X/Open Company Ltd.
Names and logos of various OSs are trademarks of their respective owners.
Copyright © 2012 Milo
Created: February 23, 2012
Last Updated: September 3, 2012
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