Free Knowledge Resources


Linux Manual Pages


Free Software * Books

Source Code

Free Media

Linux

pcp.conf(5)


NAME

   pcp.conf - the Performance Co-Pilot configuration and environment file

SYNOPSIS

   /etc/pcp.conf

DESCRIPTION

   When  using  Performance  Co-Pilot  (PCP)  tools and utilities and when
   calling PCP library functions, a standard set of environment  variables
   are  defined  in  /etc/pcp.conf.  These variables are generally used to
   specify the location of various PCP pieces in the file system  and  may
   be  loaded  into  shell  scripts  by sourcing the /etc/pcp.env(5) shell
   script and queried by C/C++ programs using the  pmGetConfig(3)  library
   function.   If  a  variable  is already defined in the environment, the
   values in pcp.conf do not override those values,  i.e.  the  values  in
   pcp.conf serve as installation defaults only.

   Both the pcp.env and pcp.conf files are expected to be found in /etc by
   default.  If required, the pcp.conf file may be relocated and  PCP_CONF
   set  in  the  environment to specify the full path to the new location.
   The pcp.env file can not be relocated (this is the only hard coded path
   required by PCP).

   The syntax rules for pcp.conf are as follows :

   1.  the general syntax is
                 PCP_VARIABLE_NAME=variable value to end of line

   2.  lines that begin with # and all blank lines are ignored.

   3.  all variables must be prefixed with PCP_.  This is a security issue
       - variables that do not have this prefix will be silently ignored.

   4.  there should be no space between the variable name and the  literal
       =  and  no  space  between the = and the variable value (unless the
       value actually starts with a space).  This is required because  the
       pcp.conf  file  may  be  sourced  directly  by Makefiles as well as
       interpreted by the pcp.env script and the pmGetConfig function.

   5.  variable values may contain spaces and should not be  quoted.   The
       pcp.env  script  automatically  quotes all variable values from the
       character immediately following the = through to  the  end  of  the
       line.

   For further details and an explanation of the use of each variable, see
   the comments in the /etc/pcp.conf file itself.

ENVIRONMENT

   The PCP_CONF environment variable specifies an alternative path to  the
   pcp.conf file.

SEE ALSO

   PCPIntro(1),  pmconfig(1),  PCPIntro(3),  PMAPI(3),  pmGetConfig(3) and
   pcp.env(5).



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