Free Knowledge Resources


Linux Manual Pages


Free Software * Books

Source Code

Free Media

Linux

ipcmk(1)


NAME

   ipcmk - make various IPC resources

SYNOPSIS

   ipcmk [options]

DESCRIPTION

   ipcmk  allows you to create shared memory segments, message queues, and
   semaphore arrays.

OPTIONS

   Resources can be specified with these options:

   -M, --shmem size
          Create a shared memory segment of size bytes.  The size argument
          may  be followed by the multiplicative suffixes KiB (=1024), MiB
          (=1024*1024), and so on for GiB, etc.  (the  "iB"  is  optional,
          e.g.,  "K"  has  the  same  meaning as "KiB") or the suffixes KB
          (=1000), MB (=1000*1000), and so on for GB, etc.

   -Q, --queue
          Create a message queue.

   -S, --semaphore number
          Create a semaphore array with number of elements.

   Other options are:

   -p, --mode mode
          Access permissions for the resource.  Default is 0644.

   -V, --version
          Display version information and exit.

   -h, --help
          Display help text and exit.

SEE ALSO

   ipcrm(1), ipcs(1)

AUTHOR

   Hayden A. James hayden.james@gmail.com

AVAILABILITY

   The ipcmk command is part of the util-linux package  and  is  available
   from  Linux  Kernel Archive ftp://ftp.kernel.org/pub/linux/utils/util-
   linux/.



Opportunity


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


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.



Free Books


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.



Education


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.


birds banner