There are several UNIX command line tools available for Windows operating systems, including: Cygwin: Cygwin is a Linux-like environment for Windows that provides a collection of tools and utilities, including shells, compilers, editors, and other development tools. It offers a UNIX-like environment on Windows, allowing users to run many UNIX commands and utilities natively. Windows … Read more

Keepalived is a free, open-source software package that provides failover and load-balancing services for Linux-based systems. It is commonly used to manage web servers and proxies, including nginx. In this example, we will set up a failover cluster with two nginx servers, one acting as the master and the other as a backup. Here are … Read more

To convert tabs to spaces in a file using a Bash shell, you can use the expand command. Here’s how to do it: Open a terminal and navigate to the directory where the file is located. Run the expand command followed by the name of the file you want to convert. For example, if your … Read more

In Linux, you can create a RAM disk, also known as a RAM filesystem or a tmpfs, which is a portion of your system’s memory that is used as a virtual disk. This can be useful for storing temporary files, speeding up disk-intensive operations, and reducing wear on physical disks. Here’s how to create a … Read more

To install the Linux kernel headers and development files on a Fedora Linux system, you can use the dnf package manager. Here’s how to do it: Open a terminal and update the dnf package manager’s cache by running the following command: sudo dnf makecache Install the kernel headers and development files by running the following … Read more

To list the files contained in an RPM package, you can use the rpm command with the -ql option. Here’s how to do it: Open a terminal and run the following command to list the files contained in an RPM package: rpm -ql package-name Replace package-name with the name of the RPM package that you … Read more

To create a bootable USB pen drive in Linux, you can use the dd command to write the ISO image to the USB drive. Here’s how to do it: Insert the USB pen drive into a USB port on your computer. Open a terminal and type the following command to find the device name of … Read more

By default, the history command in Bash shows a list of recently executed commands with their respective line numbers. However, it does not display the date and time when each command was executed. (www.utahcnacenters.com) To show the date and time for each command in the Bash history, you can set the HISTTIMEFORMAT environment variable. Here’s … Read more

The lsscsi command can be used to list all SCSI / SATA hard disks and CD / DVD drives on a Linux system. Here’s how to use it: Open a terminal on your Linux system. Type the following command and press Enter: lsscsi This will display a list of all SCSI / SATA devices on … Read more

If you have a named statistics dump file in Linux and want to convert the date and time in the file to a different format, you can use the date command. Here’s an example: Assuming you have a named statistics dump file named named_stats.txt with the following content: +++ Statistics Dump +++ (1614223000) … The … Read more