git-symbolic-ref - Read, modify and delete symbolic refs


   git symbolic-ref [-m <reason>] <name> <ref>
   git symbolic-ref [-q] [--short] <name>
   git symbolic-ref --delete [-q] <name>


   Given one argument, reads which branch head the given symbolic ref
   refers to and outputs its path, relative to the .git/ directory.
   Typically you would give HEAD as the <name> argument to see which
   branch your working tree is on.

   Given two arguments, creates or updates a symbolic ref <name> to point
   at the given branch <ref>.

   Given --delete and an additional argument, deletes the given symbolic

   A symbolic ref is a regular file that stores a string that begins with
   ref: refs/. For example, your .git/HEAD is a regular file whose
   contents is ref: refs/heads/master.


   -d, --delete
       Delete the symbolic ref <name>.

   -q, --quiet
       Do not issue an error message if the <name> is not a symbolic ref
       but a detached HEAD; instead exit with non-zero status silently.

       When showing the value of <name> as a symbolic ref, try to shorten
       the value, e.g. from refs/heads/master to master.

       Update the reflog for <name> with <reason>. This is valid only when
       creating or updating a symbolic ref.


   In the past, .git/HEAD was a symbolic link pointing at
   refs/heads/master. When we wanted to switch to another branch, we did
   ln -sf refs/heads/newbranch .git/HEAD, and when we wanted to find out
   which branch we are on, we did readlink .git/HEAD. But symbolic links
   are not entirely portable, so they are now deprecated and symbolic refs
   (as described above) are used by default.

   git symbolic-ref will exit with status 0 if the contents of the
   symbolic ref were printed correctly, with status 1 if the requested
   name is not a symbolic ref, or 128 if another error occurs.


   Part of the git(1) suite


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.


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.