How to install curl on Debian Linux 9/8

I am a new Debian Linux 9 user. I switched from Windows server and I trying to run the curl command from a shell script but getting the following error: bash: curl: command not found…

How to Change a USER and GROUP ID on Linux For All Owned Files

I would like to know how to change a UID (USER ID)/GID (GROUP ID) and all belonging files on Linux operating system. Say, I want to change UID from 1005 to 2005 and GID from…

How To See Characteristics of File Systems on Linux or Unix

H ow do I display the characteristics of file systems such as inodes, blocks, block size, file system name, state, lifetime writes, fsck status and more on Linux or Unix-like operating system?   You can…

How To Install Microsoft Visual Studio Code on Linux

V isual Studio code (VScode) is the cross-platform Chromium-based code editor is being open sourced today by Microsoft. How do I install Microsoft Visual Studio Code on a Debian or Ubuntu or Fedora Linux desktop?…

Debian / Ubuntu Linux Delete Old Kernel Images Command

I ‘m a new Ubuntu Linux user and noticed that old kernel still exists in my system. Why doesn’t Ubuntu remove old kernels automatically? How do I delete old unused kernel images to free disk…

How to summarize detailed system resource usage for given command on a Linux or Unix

H ow do I determine the system resource usage during of execution of a particular command on a Linux, OS X Unix, BSD and Unix-like operating system?   You need to use /usr/bin/time (hereinafter referred…

How to find out AES-NI (Advanced Encryption) Enabled on Linux System

The Intel Advanced Encryption Standard (AES) or New Instructions (AES-NI) engine enables extremely fast hardware encryption and decryption for openssl, ssh, vpn, Linux/Unix/OSX full disk encryption and more.   How do I check support for…

How to install Composer on Debian / Ubuntu Linux

I‘m trying to upgrade my Mediawiki installation and I’m getting an error that read as follows: Error: your composer.lock file is not up to date, run “composer update” to install newer dependencies How do I…

How to Force Apache To Show a HTTP-410 Gone Status Code

I removed www.example.com/foo/file.html from my domain. But, it is still being crawled by Google/Yahoo and many other bots. How do I return a HTTP-410 gone error i.e. tell these bots that resource permanently does not…

How To Read CPUID Instruction For Each CPU on Linux With x86info and cpuid Commands

Is there a CPU-Z like a freeware/open source software that detects the central processing unit (CPU) of a modern personal computer in Linux operating system? How can I get detailed information about the CPU(s) gathered…