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How To Create Disk Image on Mac OS X With dd Command
The dd command is a powerful tool for creating disk images on Mac OS X. Here's how to use it:rn rn Open Terminal. rn Insert the source disk (e.g. a USB drive) that you want to create an image of. rn Run the following command to list the available disk devices: rn rn rn rn diskutil listrn rn rn rn Id
How To Install FreeBSD on Raspberry Pi 2 Model B
To install FreeBSD on a Raspberry Pi 2 Model B, you can follow these steps:rn rn Download the FreeBSD image for Raspberry Pi 2 Model B from the official FreeBSD website. rn Write the image to a MicroSD card using a tool like Etcher. rn Insert the MicroSD card into the Raspberry Pi 2 Model B, connect
How To Find Out If 32 or 64 bit Unix OS Installed On Server
To find out if a 32-bit or 64-bit Unix operating system is installed on a server, you can use the uname command with the -m option. The -m option shows the machine hardware name, which indicates the architecture of the operating system. For example, you can run the following command:rn rn rn unam
How To Update macOS Using Command Line Software Update Tool
To update macOS using the command line software update tool, you can use the softwareupdate command. This command is part of the Apple Software Update utility and can be used to install system software updates, security updates, and other updates from the Apple servers. To check for available upd
How To See Characteristics of File Systems on Linux or Unix
To see the characteristics of file systems on Linux or Unix, you can use the stat command. The stat command displays information about the file system status and attributes, such as the file type, access rights, timestamps, and other information. For example, to see the characteristics of a file
How To Install Microsoft Visual Studio Code on Linux
Microsoft Visual Studio Code (VSCode) can be installed on Linux systems in several ways. Here's how to install it on a Debian-based system like Ubuntu:rn rn Download the DEB package for your architecture (32-bit or 64-bit) from the Visual Studio Code website: https://code.visualstudio.com/download r
Debian / Ubuntu Linux Delete Old Kernel Images Command
In Debian and Ubuntu Linux, old kernel images can be deleted using the dpkg command. To delete old kernel images, follow these steps:rn rn Run the following command to list all installed kernel packages: rn rn rn rn dpkg -l | grep linux-imagern rn rn rn Look for the older kernel images that you want
FreeBSD Install Rsnapshot Filesystem Snapshot Backup Utility
To install the Rsnapshot filesystem snapshot backup utility on FreeBSD, you can use the pkg package manager. Here's how:rn rn Make sure you have the pkg package manager installed on your FreeBSD system. If you don't have it installed, you can install it by running the following command as root: rn r
ip route add network command for Linux explained
The ip route add command in Linux is used to add a new route to the IP routing table. The syntax for the ip route add command is as follows:rn rn rn ip route add network/mask dev interface rn rn rnwhere:rn rn network/mask : This is the IP address and netmask for the network you want to route. rn dev
How to summarize detailed system resource usage for given command on a Linux or Unix
To summarize the detailed system resource usage for a given command on Linux or Unix, you can use the time command. The time command provides information about the resources used by a command, including the real time elapsed, user time, and system time. Here's how:rn rn Open a terminal window. rn Ty
How to find out macOS version information from Terminal command prompt
You can find the version of macOS installed on your Mac from the Terminal command prompt by using the sw_vers command. Here's how:rn rn Open Terminal. rn Type the following command and press Enter: rn rn rn rn sw_versrn rn rnThis will display the version of macOS installed on your Mac, including the
How to find out AES-NI (Advanced Encryption) Enabled on Linux System
To find out if AES-NI (Advanced Encryption Standard New Instructions) is enabled on a Linux system, you can use the following methods:rn rn Check the output of the lscpu command: rn rn rn rn lscpu | grep "AES" rn rn rnIf AES-NI is enabled, the output should include the following lines:rn rn rn AES-N
Fedora Linux – How to Use dnf Command With A Proxy Server
The "dnf" command is the package manager for Fedora Linux. If you are behind a proxy server, you can configure dnf to use the proxy by setting the http_proxy and https_proxy environment variables. Here's how:rn rn Open a terminal window. rn Set the http_proxy and https_proxy environment variables to
How to install Composer on Debian / Ubuntu Linux
Composer is a dependency manager for PHP, which helps you manage the packages and libraries required for your PHP projects. Here's how to install Composer on Debian or Ubuntu Linux:rn rn Open a terminal window. rn Download the Composer installer script by running the following command: rn rn rn rn c
How to Force Apache To Show a HTTP-410 Gone Status Code
To force Apache to show a HTTP-410 Gone status code, you need to add a custom error response in your Apache configuration file. Here's how to do it:rn rn Open the Apache configuration file, usually located at "/etc/httpd/conf/httpd.conf" or "/etc/apache2/httpd.conf", using a text editor as root or u
How To Read CPUID Instruction For Each CPU on Linux With x86info and cpuid Commands
The "x86info" and "cpuid" commands are tools in Linux that allow you to read the CPUID information for each CPU in your system. Here's how to use them: Using "x86info":rn rn Open a terminal window. rn Run the following command to display information about your CPU using "x86info": rn rn rn rn x86
How to change root password on Alpine Linux
The root password on an Alpine Linux system can be changed using the "passwd" command. Here's how to do it:rn rn Open a terminal window. rn Log in as root or switch to the root user using the "su" command: rn rn rn rn surn rn rn rn Run the following command to change the root password: rn rn rn rn p
How to find out zone information for given country on Linux or Unix
The zone information for a given country in a Linux or Unix system can be found using the "tzselect" command. Here's how to use it:rn rn Open a terminal window. rn Run the following command: rn rn rn rn tzselectrn rn rn rn Follow the prompts to select the country, and then select the appropriate
How to backup and restore a partition table on Linux
The partition table on a Linux system can be backed up and restored using various tools and methods. Here's one way to do it using the "sfdisk" command: To backup the partition table:rn rn Open a terminal and log in as root or with superuser privileges. rn Run the following command to backup the
How to secure and lock down Apple OS X 10.11 (El Capitan) with osxlockdown
"osxlockdown" is a third-party security tool that can be used to secure and lock down Apple OS X 10.11 (El Capitan) systems. It provides various options for securing and hardening the OS X operating system, such as disabling automatic login, limiting access to the terminal, and setting strict permis
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