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Basics of an OS (Wintel, Unix, Mainframe)


IT OS datacenter For backgound of DTAP, software librarie for the business, see DTAP lcm scm chapter.

For a glossary IT see that chapter.


working on this I´m working mostly on other pages at this moment (feb 2012).
Found this was subject to do as dedicated subject. Links and parapgraph´s will be moved to here.

For the most time this page will be a mesh-up. As soon I see the hit-ratio will grow I will do a clean-up. -->


File System

linux logo

Unix

Filesystems within Unix are set up to storage by mountpoints.

There are many implementatons and versions.
Windows logo

Windows



Mainframe img

Mainframe





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System Clock



clock

Time zones

(wiki)
cet (greenwichmeantime)
zones (greenwich-mean-time)
summer time (greenwich-mean-time)


linux logo

Unix / Linux

local time zone file is:
In Linux: /etc/TIMEZONE
In Unix: /etc/localtime


The TZDB resides on:
In Linux: /usr/share/zoneinfo/
In Unix: /usr/share/lib/zoneinfo/


clock

Java time zone and DST implementation


Java Runtime Environment/JDK doesn't use the OS TZDB; instead, it has its own implementation of time zone information and DST rules.

geniaal

Date Time indication

Date_(Unix) (wiki) ~/user: data "+%Y-%m-%d %H;%M:%D"
Java Runtime Environment/JDK doesn't use the OS TZDB; instead, it has its own implementation of time zone information and DST rules.

The way of coding this is propagated by many others like:



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Internationalization



clock

Definitions





clock

leet numeron





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Scheduling

linux logo

Unix / Linux

Concurrency Utilities -Overview (oracle)
The Concurrency Utilities include a high-performance, flexible thread pool; a framework for asynchronous execution of tasks; a host of collection classes optimized for concurrent access; synchronization utilities such as counting semaphores; atomic variables; locks; and condition variables.

j-schedule (ibm)
The java.util.Timer and java.util.TimerTask classes, which I'll refer to collectively as the Java timer framework, make it easy for programmers to schedule simple tasks.

quartz
Quartz is a full-featured, open source job scheduling service that can be integrated with, or used along side virtually any Java EE or Java SE application - from the smallest stand-alone application to the largest e-commerce system



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Compress Zip pack

linux logo

Unix / Linux

Gzip gunzip
pack unpack zcat pcat compress
tar

Windows

Microsoft
Winzip



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Editors

teach

System editors

VI (unix)
VI Vim is unilx (linux) classic editor. Vi commands
Vi commands
teach
Notepad++ Ultraedit
Task can be ++ ultraedit etc n many languages. To have taks recoded in an other language there is rosetta. rosetta code



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Languages

Generic


teach
Rosetta
Task can be coded in many languages. To have taks recoded in an other language there is rosetta. rosetta code


linux logo

Unix / Linux


oldtime
C
C is an old aged language. It used to build operating system software at that level it is like assembler.


C is a general-purpose, procedural, imperative computer programming language developed in 1972 by Dennis Ritchie at the Bell Telephone Laboratories for use with the UNIX operating system. C evolved from its predecessor, B.

oldtime
Android NDK SDK
Smart Telephone apps have become boomnig. As they are based on Unix-like OS systems the old tooling is found.
The NDK is a toolset that allows you to implement parts of your app using native-code languages such as C and C++.

Smart Telephone apps have become boomnig. As they are based on Unix-like OS systems the old tooling is found.
Managing Projects from Eclipse with ADT Eclipse and the ADT plugin provide GUIs and wizards to create all three types of projects (Android project, Library project, and Test project)
quichot
Unix Shells
Unix shell scripting is something wit a lot of special characters and meanings difficult to understand.

The variable expansing is somenthing weird to deal with.
{ } variabel expansion (gnu bash


The text is not processed as it visible. Ther is pointer to strings of words.
Word Splitting, "@" (gnu bash)


Microsoft
Windows logo
quichot

C C#

Winzip



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Monitoring

Tools

linux logo

Unix / Linux

open files
IBM Usage and examples of lsof, pfiles, procfiles commands (IBM- United States)
grid hadoop
ganglia (wiki)
ganglia berkeley BSD-licensed
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Windows





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Database management Systems

suppliers

Oracle

11.2 Compatiblity - server side 1 version difference
11.2 install_overview
11.2 P
blogs versions
Interoperablity client - server is not open to see.

Microsoft

SQL Server Audit Records (2012)
SQL Server Audit (Database Engine) (2012)
The Transaction Log (SQL Server) (2012)
Data Collection (programmable)
Interoperablity client - server is not open to see.



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© 2012 J.A.Karman (26 feb 2012 - more to do)