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Linux Articles

Managing VMware images from command line using vmrun tool

Managing VMware images in VMware Server 2.x can be done in several ways. One way is to utilise Web based GUI and the second way is the command line. To login to the Web based GUI (SSL) https://hostname:8333/ui/# http://hostname:8222/ui/# (How to disable redirect to SSL could be found here) Let’s get focused on Shell commands – […]

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UNIX Calendar – missing days in 1752

Try on this in Linux or UNIX platform: [email protected] [~]$ cal 9 1752 September 1752 Su Mo Tu We Th Fr Sa 1 2 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 [email protected] [~]$ Surprised? Where are those missing 11 days? A month with whole of […]

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How to disable SSL and redirect to port 8333 VMWare Server 2.0

This article describes how to disable SSL protocol and redirect to port 8333 in VMware Server 2.0 in Linux By default there are two ways in order to log-in to the VMware console; either using SSL connection (port 8333) or without it (port 8222). However logging without SSL is only allowed from a localhost on which […]

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Top Memory and CPU consumers UNIX, LINUX

Linux OS #current user: $ ps u USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND user 16038 0.0 0.1 4852 784 pts/0 Ss+ Oct28 0:00 /bin/bash #to display the top CPU consumer $ ps aux | sort -nk +3 | tail -1 #to display the top memory consumer $ ps aux | […]

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Installing Oracle SQL Developer in Ubuntu – complete script

Here is a complete script to install Oracle SQL Developer in UBUNTU Linux using alien to convert RPM to DEB package and next install it by dpkg. 1. Download SQL Developel from Oracle website and place it into a /home/user/Downloads directory http://www.oracle.com/technetwork/developer-tools/sql-developer/downloads/index.html 2. Execute the following script: #!bin/bash sudo apt-get install -y sun-java6-jdk alien cd […]

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GRUB 2 Restore after Windows installation

GRUB 2 Restore after Windows (re)installation Scenario: Multiple OS in one machine – Linux Grub2 Boot Loader doesn’t start after Windows (re) installation. A selfish Windows OS starts automatically by default. It happens when installing Linux and Windows. This can be easily avoided by installing multiple operating systems in the following order; first Windows then […]

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Oracle database startup shutdown script

Automate Oracle Database startup shutdown script orarun – script automates database start, stop, status query tasks, also allows user to manage isqlplus console and em database control Usage: orarun {start|stop|status|isqlstart|isqlstop|emstart|emstop} orarun start|stop|status  – starts/stops database, query for database status orarun isqlstart/isqlstop – starts/stops isqlplus console orarun emstart/emstop  – starts/stops enterprise manager database control Requirements: configured […]

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Enter the Linux

Introduction to Linux Linux is the name usually given to any Unix-like computer operating system that uses the Linux kernel. Linux is one of the most prominent examples of free software and open source development: typically all underlying source code can be freely modified, used, and redistributed by anyone. The name “Linux” comes from the […]

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Convert Videos AVI to MPG

Convert Videos AVI to MPG #!/bin/sh ######################################################################## #avi2mpgconv.sh – video converter avi2mpg #Script by: [email protected] (eMarcel.com) (c)2009 GPL #Purpose: To convert digital camera’s avi videos to mpg format, #it allows you to convert avi videos to mpg format which is much smaller #Howto use: $sh avi2mpgconv.sh <videos’ directory path> #suitable for Ubuntu (easy to modify […]

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Vi Reference Card – quick how-to

Modes Vi has two modes: insertion mode, and command mode. The editor begins in command mode, where cursor movement and text deletion and pasting occur. Insertion mode begins upon entering an insertion or change command. [ESC] returns the editor to command mode (where you can quit, for example by typing :q!). Most commands execute as […]

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