sed: case insensitive actions (search replace delete..)
In this article I will show you different ways to perform an action (as per your requirement) ignoring the case of the letters to be searched in a file Below is our sample file #
Linux
10 Basic examples of SED to perform per line action (print/delete)
In this article I will show you various sed expressions which can be used and combined to print or delete specific line from a file IMPORTANT NOTE: My examples provided are only to print the
How to save %pre installation log file after installation in Red Hat 7
We intend to write multiple scripts in the %pre and %post section of the kickstart files as per our requirement but since these scripts are executed in the background it is very important that we
what is the difference between sub-query and co-related sub-query?
Sub-query The inner query execute first, the outer query deprnds on inner query output. Correlated sub-query The outer query execute first, the inner query deprnds on outer query result. A correlated sub-query is where the
How to auto logout(timeout) a normal user and root user in Linux?
Below steps are validated on Red Hat Enterprise Linux 7. Auto-logout functionality is mostly used to logout a user if the session is idle for a while. Using this article you should be able to
How to disable consistent network device naming in Red Hat Linux 7
In my last article I shared the steps to protect GRUB2 from booting kernel without password in Linux With Red Hat Enterprise Linux 7 they have introduced a network device naming scheme wherein it provides
How to configure different types of network in Oracle Virtualbox (Linux)
There are multiple types of network which can be configured in Oracle VirtualBox, so before going ahead you must be clear on your requirement. Here let me give you a brief overview of the type
Choosing The Right VPN As A Linux User
We use Linux for many reasons. Security is just one of them, but it’s undeniable that Linux is more secure than other operating systems. Securing our data is especially important to us, since our devices