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Download all files in a directory using WGET
To download all files in the directory using WGET in Linux, the following command can be used wget -H -r –level=1 -k -p http://www.tldp.org/HOWTO/Serial-Programming-HOWTO/ -r,…
NMap tutorial for beginners-part 2
NMap tutorial for beginners-part 2 It’s assumed that you are root. Many options won’t work or better to say will switch to other…
NMap tutorial for beginners – Part 1
Nmap-Part 1 (Network Mapper) Running on console/command prompt First part of two tier tutorial. Nmap is great security tool developed by “Fyodor”. Basically it…
Adding sequence to a table
This TIP can be used to add a sequence in a column for a table The syntax for creating a sequence is CREATE SEQUENCE sequence_name MINVALUE…
How to use the copy command in Oracle SQL
How to use the copy command in Oracle SQL Syntax: COPY {FROM database | TO database | FROM database TO database} {APPEND|CREATE|INSERT|REPLACE} destination_table [(column, column,…
Oracle SQL tuning- Identifying bottlenecks
To start with PL/SQL or SQL tuning the first step should be to identify the bottleneck in the whole code. Idetifying individual SQL queries that are giving problems is no difficult task.
But identifying some PL/SQL block can be a difficult job.
Difference between UNIX and LINUX
Most of you might have wondered what the difference between UNIX and Linux is. Here is some of the useful information. UNIX Vs Linux….
CPU Naming Schemes – x86 (386,486,586), AMD 64, IA64 & EM64T
INSTALLING SOFTWARES USING CHECKINSTALL SO THAT IT CAN BE SAFELY REMOVED FROM YOUR MACHINE Installing from a tarball (.tar.gz or .tar.bz2) is not difficult, but…