yppasswd, ypchfn, ypchsh - change your password in the NIS database
yppasswd [-f] [-l] [-p] [user] ypchfn [user] ypchsh [user]
In the old days, the standard passwd(1), chfn(1) and chsh(1) tools could not be used under Linux to change the users NIS password, shell and GECOS information. For changing the NIS information, they were replaced by their NIS counterparts, yppasswd, ypchfn and ypchsh. Today, this versions are deprecated and should not be used any longer. Using the command line switches, you can choose whether to update your password -p, your login shell -l, or your GECOS field -f, or a combination of them. yppasswd implies the -p option, if no other option is given. If you use the -f or -l option, you also need to add the -p flag. ypchfn implies the -f option, and ypchsh -l. When invoked without the user argument, the account information for the invoking user will be updated, otherwise that of user will be updated. This option is only available to the super-user. If the yppasswdd daemon on the server supports it, you can give the root password of the server instead of the users [old] password. All tools will first prompt the user for the current NIS password needed for authentication with the yppasswdd(8) daemon. Subsequently, the program prompts for the updated information: yppasswd or -p Change the user's NIS password. The user is prompted for the new password. While typing the password, echoing is turned off, so the password does not appear on the screen. An empty password is rejected, as are passwords shorter than six characters. The user will then be requested to retype the password to make sure it wasn't misspelled the first time. ypchsh or -l Change the user's login shell. The user is prompted for a new shell, offering the old one as default: Login shell [/bin/sh]: _ To accept the default, simply press return. To clear the shell field in your passwd(5) file entry (so that the system's default shell is selected), enter the string none. ypchfn or -f Change the user's full name and related information. Traditionally, some applications expect the GECOS field (field 4) of the passwd(5) file to contain the user's real name (as opposed to the login name) plus some additional information like the office phone number. This information is displayed by finger(1) and probably some other tools, too. When setting the full name, ypchfn displays the following prompts, with the defaults in brackets: Name [Joe Doe]: Location [2nd floor, bldg 34]: Office Phone [12345]: Home Phone []: To accept a default, simply press return. To clear a field, enter the string none.
chfn(1), chsh(1), finger(1), passwd(5), passwd(1), ypcat(1), yppasswdd(8), ypserv(8), ypwhich(1)
yppasswd is part of the yp-tools package, which was written by Thorsten Kukuk <kukuk@linux-nis.org>.
Personal Opportunity - Free software gives you access to billions of dollars of software at no cost. Use this software for your business, personal use or to develop a profitable skill. Access to source code provides access to a level of capabilities/information that companies protect though copyrights. Open source is a core component of the Internet and it is available to you. Leverage the billions of dollars in resources and capabilities to build a career, establish a business or change the world. The potential is endless for those who understand the opportunity.
Business Opportunity - Goldman Sachs, IBM and countless large corporations are leveraging open source to reduce costs, develop products and increase their bottom lines. Learn what these companies know about open source and how open source can give you the advantage.
Free Software provides computer programs and capabilities at no cost but more importantly, it provides the freedom to run, edit, contribute to, and share the software. The importance of free software is a matter of access, not price. Software at no cost is a benefit but ownership rights to the software and source code is far more significant.
Free Office Software - The Libre Office suite provides top desktop productivity tools for free. This includes, a word processor, spreadsheet, presentation engine, drawing and flowcharting, database and math applications. Libre Office is available for Linux or Windows.
The Free Books Library is a collection of thousands of the most popular public domain books in an online readable format. The collection includes great classical literature and more recent works where the U.S. copyright has expired. These books are yours to read and use without restrictions.
Source Code - Want to change a program or know how it works? Open Source provides the source code for its programs so that anyone can use, modify or learn how to write those programs themselves. Visit the GNU source code repositories to download the source.
Study at Harvard, Stanford or MIT - Open edX provides free online courses from Harvard, MIT, Columbia, UC Berkeley and other top Universities. Hundreds of courses for almost all major subjects and course levels. Open edx also offers some paid courses and selected certifications.
Linux Manual Pages - A man or manual page is a form of software documentation found on Linux/Unix operating systems. Topics covered include computer programs (including library and system calls), formal standards and conventions, and even abstract concepts.