Business Linux Operating Systems

Linux

Linux

Unix and Linux are different operating systems with have some common commands. Source code for Linux is freely available to the public and Unix is not available. Linux operating system is a free/open source and Some versions of Unix are proprietary and others are a free/open source. Linux Operating system can be used for desktop systems and for servers. But the Unix is mainly used in servers, mainframes and high-end computers.

AIX is an operating system based on Unix versions from IBM. It is mainly designed for IBM’s workstations and for the server hardware platforms. And HP-UX is the operating system from HP ( Hewlett Packard ) based on Unix versions.  HP-UX and AIX are stable operating system compare with Linux. HP-UX and AIX are platform dependent and they are limited to their own hardware. But in the case of Linux, it is platform independent and can be used with any hardware. Since HP-UX and AIX are platform dependent, they are optimised for the hardware and the performance is better than Linux operating systems.  AIX is outperforming Linux from 5 to 10 percent.

Unix

AT&T Unix, started in the 1970s at the Bell Labs and newer versions of Unix have developed and some of them are listed below. In 1980, AT&T licensed Unix to third-party vendors and leading to the development of different variants. Some of them are;

  • Berkeley Unix, FreeBSD and its variants
  • Solaris from Sun Microsystem
  • HP-UX from Hewlett-Packard
  • AIX from IBM
  • MacOs from Apple
  • Microsoft’s Xenix

Unix installations are costlier since it requires some special hardware. MacOS needs apple computers, AIX needs IBM hardware and HP-UX needs HP hardware etc.

Linux

Linux is a free and open source operating system based on Unix. Linux kernel was first developed by Linus Torvalds in 1991. Linux was originally developed for personal computers but nowadays it is using personal computers as well as in server systems. Since it is very flexible, it can be installed in any hardware systems. Linux operating system is available for mobile phones, tablets, video game consoles, mainframes and supercomputers. Some of the best distros for small business are;

  • Centos
  • ClearOS
  • OpenSUSE
  • IPFire
  • Ubuntu
  • Manjaro
  • Slackware

Linux Vs Unix

Linux Unix
The Source Code of Linux is freely available to its Users. The Source Code of Unix is not available for the general public.
Linux primarily uses Graphical User Interface with an optional Command Line Interface. Unix primarily uses Command Line Interface.
Linux OS is portable and can be executed in different Hard Drives. Unix is not portable.
Linux is very flexible and can be installed on most of the Home Based Pcs. Unix has a rigid requirement of the Hardware. Hence, cannot be installed on every other machine.
Linux is mainly used in Home Based PC, Mobile Phones, Desktops, etc. Unix is mainly used in Server Systems, Mainframes and High-End Computers.
Different Versions of Linux are: Ubuntu, Debian, OpenSuse, Redhat, Solaris, etc. Different Versions of Unix are: AIS, HP-UX, BSD, Iris, etc.
Linux Installation is economical and doesn’t require much specific and high-end hardware. Unix Installation is comparatively costlier as it requires more specific hardware circuitry.
The Filesystems supported by Linux are as follows: xfs, ramfs, nfs, vfat, cramfsm ext3, ext4, ext2, ext1, ufs, autofs, devpts, ntfs The Filesystems supported by Unix are as follows: zfs, js, hfx, gps, xfs, vxfs.
Linux is developed by an active Linux Community worldwide. Unix is developed by AT&T Developers.

Hardware architecture

Most commercial versions of UNIX distributions are coded for specific hardware. Like HP-UX for PA-RISC (Hewlett-Packard) and Itanium machines (Intel) and AIX is for Power processors ( IBM ). Since these distributions are limited, the developers can optimise their code for these architectures to get maximum utilisation of resources.  Since it uses proprietary hardware, Unix distributions are not cost effective.

  • HP-UX needs HP or Intel hardware
  • AIX needs IBM Hardware

Linux operating system is not dependent on the hardware, so it can be installed in any of the server systems which have a processor. Since the developers cannot assume the hardware architecture and they need to prepare the code for some general hardware specifications and that’s why Linux operating system has less performance than the commercial Unix variants.

  • Linux is open to all hardware

Licensing

GNU General Public License (GPL), is a form of copyleft and is used for the Linux kernel and many of the components from the GNU Project. Free software projects, although developed through collaboration, are often produced independently of each other. AIX and HP-UX are using proprietary licenses.

HP-UX

Developer Hewlett-Packard Enterprise
Written in C
OS family Unix (System V)
Initial release 1982; 36 years ago
Kernel type Monolithic with dynamically loadable modules
License Proprietary

 

IBM AIX

Developer IBM
Written in C
OS family Unix
Initial release 1986; 32 years ago
Kernel type Monolithic with dynamically loadable modules
License Proprietary

 

Linux

Developer Community, Linus Torvalds
Written in Primarily C and assembly
OS family Unix-like
Initial release September 17, 1991; 26 years ago
Kernel type Monolithic (Linux kernel)
License GPLv2[7] and other free and open-source licenses (the name “Linux” is a trademark[b])

 

Softwares and Tools

Softwares and tools in Linux are general to all hardware. But in the case of Unix, separate tools and software which leverage to get the maximum performance. So the performance of the systems is higher than the Linux operating system by comparing the hardware configuration. Unix has good performance than Linux systems. While considering the cost estimation, Linux will get more votes.

System Management Interface Tool ( SMIT ) with AIX is the tools used for package management, System Administration Manager (SAM) on HP-UX. Linux operating system uses rpm or dpkg etc. based on the variants.

Software Installation and Patch Management

R H Linux

HP-UX

AIX

Install rpm -i file swinstall –s depot software installp –a [-c] FileSet
Update rpm -U/F file swinstall –s depot software installp –a FileSet
List rpm -q swlist –l product lslpp –L all
Remove rpm -e swremove software installp –u FileSet
Patches rpm -u swinstall installp
List Patches rpm -q -a swlist –l product lslpp –L all
Patch check up2date/yum security_patch_check compare_report

File system

While talking about the file systems, Linux scores more than the other Unix versions. Unix supports two or three file systems locally. But Linux supports almost all the file systems available on any operating system.

 

System Filesystem
AIX jfs, gpfs
HP-UX hfs, vxfs

Kernel

The kernel is the core of the operating system and the source code of the kernel are not freely available for the commercial versions of Unix. For the Linux operating system, the users can check and verify the code and even modify it if required.

Support

The commercial versions of Unix come with a license cost. Since these operating systems are purchased, the vendor will provide technical support to the end users to the smooth running of the operating systems.

In the case of the Linux operating system, we need to use the open source forums and community for getting support from the users and developers around the world or hire some freelancers for fixing the issues.

Related References

Information Technology – What is Greer’s Third Law?

Greer's Third Law, Acronyms, Abbreviations, Terms, And Definitions, What is Greer's Third Law

Greer’s Third Law

Greer’s Third Law

A computer program does what you tell it to do, not what you want it to do

Related References

Database – What is a Composite Primary Key?

Database Table

Database Table

What is a Composite Primary Key?

A Composite Primary key is Primary key What a primary key, which is defined by having multiple fields (columns) in it.  Like a Primary Key what a composite Primary Key is depends on the database.  Essentially a Composite Primary Key:

  • Is a combination of Fields (columns) which uniquely identifies every row.
  • Is an index in database systems which use indexes for optimization
  • Is a type of table constraint
  • Is applied with a data definition language (DDL) alter command
  • And may define parent-Child relationship between tables

Related References

Netezza / PureData – What client tools to use with Netezza

IBM Netezza / IBM PureData for Analytics

IBM Netezza / IBM PureData for Analytics

 

Occasionally, a client will want a list of tools to work with Netezza / PureData, other than the Netezza Administrator Client.  Honestly, there are several tools which could be used, if they have odbc and/or jdbc connectivity.  However, these are the tools which keep being used across different customers.

Open Source

For customers willing to work with an open source tool Aginity for Netezza provides a significant set of capabilities, including script generation, which can be a significant productivity accelerator for development and operation support teams.

Aginity for Netezza

Free From IBM

For customer who do not want to work with open source tools, then IBM Data studio is an acceptable tool and has the added benefit of being free from IBM.

IBM Data Studio

IBM Software > Products > Data management platform > Data management > IBM Data Studio

Related References

Where to download IBM Data Studio?

IBM Data Studio Client

IBM Data Studio Client

IBM data studio is offered free from IBM, and can be helpful when working with DB2 and Puredata/Netezza using a JDBC driver.

What you need to Down Load IBM Data Studio

  • You will need an IBM ID and password

Basic down load steps

IBM Sign In Screen

IBM Sign In Screen

  • Enter you IBM ID, and password, then click ‘sign in’.
  • On the IBM Data Studio Client, license page, check ‘I agree’ and then click ‘I confirm’
IBM Data Studio Client License Screen

IBM Data Studio Client License Screen

  • On the IBM Data Studio Client, download page, Select the desired method tab, Then
    • Select the desired product or products and click ‘Download now.
IBM Data Studio Client Download Files Screen

IBM Data Studio Client Download Files Screen

 

Related References

IBM Data Studio

IBM Software > Products > Data management platform > Data management > IBM Data Studio

IBM Data Studio Client (Download)

IBM Support

Download and install IBM Data Studio Version 4.1.x

IBM Support

System requirements for IBM Data Studio Version 4.1.x

IBM Knowledge Center

Data Studio, Data Studio 4.1.1, Overview, Overview of IBM Data Studio

 

Aginity for Netezza – How to disable and/or Enable the Autocomplete Function

Aginity for Netezza an out complete feature, which auto completes brackets, quotes, and comment character, which some folks find useful and helpful.  However, if you are an old-school style coder like me, you may find these annoying, to say the least.  Usually, when I’m coding I want to write straight through without the need to think about how the application may be trying to help me, which means I usually end up cleanup all the autocomplete added characters after the fact.  Disabling this feature is quick and easy and can be easily be reinstated later, if you find you want to leverage some or all of the autocomplete features.

Aginity Tools Options

Aginity Tools Options

 

To Disable the Autocomplete Functions

  • Navigate to: Tools > Options
  • Then, Navigate to: Query Analyzer > Code autocomplete
  • Then, Uncheck the feature or features you wish to disable and press, ‘OK
Disable Aginity Code Autocomplete Options Disable

Disable Aginity Code Autocomplete Options Disable

To Enable the Autocomplete Functions

  • Navigate to: Tools > Options
  • Then, Navigate to: Query Analyzer > Code autocomplete
  • Then, Check the feature or features you wish to enable and press, ‘OK
Enable Aginity Code Autocomplete Options Disable

Enable Aginity Code Autocomplete Options Disable

Related References

Useful Tools for Technical Consultants and Developers

Here is a quick list of technical consultant and developer tools (free or open source), which have proven useful over the years to me.  Hopefully, this information will be of use to you has well.

Text and Code Editors

Notepad++

Notepad++, which I have been using for years now, is a free source code editor which supports several programming languages running under the MS Windows environment (governed by GPL License).  I have repeatedly found Notepad++ extraordinarily useful.  Especially, the language features (e.g. Shell, XML, SQL) or needing to work with files and data without the worry of hidden character.

Image and Screenshot Tools

Greenshot

Greenshot is a light-weight screenshot software tool for Windows, which can be very helpful for capturing application screenshots.  Greenshot allows quick creation of screenshots, easy annotation, highlighting and obfuscating using the built-in image editor and sending the screenshot to a file, the clipboard, a printer or as e-mail attachment

PhotoScape

PhotoScape is an easy photo editing software editing, fixing and enhance photos, screenshots, and images.

Useful Open Source Tools for Project Plans

Google – gantterforgoogledrive

This tool can be to create projects and Gantter charts, when you don’t have a project planning tool available. this tools does seam to have some size and complexity limitations.

Microsoft Project Viewer

This is a useful Microsoft Project plan view for those times when you have MS project available.

ProjectLibre OPENPROJ

I have found this tool to be a useful substitute for MS Project and I have not had any issues with size or complexity limitations.  I have also found the export and import capability useful when working on projects teams who do no use a consistent project planning tool.  Additionally, if you are or have been a MS Project user, you should most of the functionality moderately intuitive, at least, I didn’t have any problems adapting.

Diagram Viewers

Microsoft Visio 2016 Viewer

The Microsoft Visio Viewer can be very handy when you need to view Visio diagrams and there are not enough licenses to go around, or you just need to read them and have no need to create or update the diagrams.

Google chrome addin 

if you are a chrome user you may want to consider this alternative.  Especially, if you are a MAc and/or Linux user.