sa2(8)

NAME

   sa2  -  Create a report from the current standard system activity daily
   data file.

SYNOPSIS

   /usr/lib/sysstat/sa2

DESCRIPTION

   The sa2 command is a shell procedure variant of the sar  command  which
   writes  a daily report in the sarDD or the sarYYYYMMDD file, where YYYY
   stands for the current year, MM for the current month and  DD  for  the
   current  day.   By  default the report is saved in the /var/log/sysstat
   directory.  The sa2 command will also remove reports more than one week
   old  by  default.   You  can  however  keep  reports for a longer (or a
   shorter) period by setting the HISTORY environment variable.  Read  the
   sysstat(5) manual page for details.

   The  sa2  command  accepts  most of the flags and parameters of the sar
   command.

   The sa2 command is designed to be started  automatically  by  the  cron
   command.

EXAMPLES

   To  run  the  sa2 command daily, place the following entry in your root
   crontab file:

   5 19 * * 1-5 /usr/lib/sysstat/sa2 -A &

   This will generate by default  a  daily  report  called  sarDD  in  the
   /var/log/sysstat   directory,  where  the  DD  parameter  is  a  number
   representing the day of the month.

   Debian note
   The Debian sysstat package has already placed such  an  entry  in  your
   system        crontab.         Please        refer        to        the
   /usr/share/doc/sysstat/README.Debian file for details.

FILES

   /var/log/sysstat/sarDD
   /var/log/sysstat/sarYYYYMMDD
          The standard  system  activity  daily  report  files  and  their
          default  location.  YYYY stands for the current year, MM for the
          current month and DD for the current day.

AUTHOR

   Sebastien Godard (sysstat <at> orange.fr)

SEE ALSO

   sar(1), sadc(8), sa1(8), sadf(1), sysstat(5)

   http://pagesperso-orange.fr/sebastien.godard/



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.