curl Command Resume Broken Download

I know wget can resume a failed download. I am on a Mac OS X and do now want to install wget command. How can I resume a failed download using curl command on Linux…

Linux / Unix: chroot Command Examples

I am a new Linux and Unix user. How do I change the root directory of a command? How do I change the root directory of a process such as web-server using a chroot command…

Mac OS X: Force Quit An Unresponsive Full Screen Application Shortcut Key

S ometime my VLC application gets crashed on a Mac OS X system. The screen goes blank and VLC stays hang running on my desktop or MacBook. How can I solve this issue and quit…

Linux / Unix: Find And List All Hidden Files Recursively

I am a new Unix system shell user. I need to find and list all hidden files including directories on a Linux or Unix-like system. How can I recursively list all hidden files and directories?…

HowTo: Use ps, kill, nice, and killall To Manage processes in FreeBSD and OS X Unix Operating System

I ‘m a new Unix system user. How can I manage process on a FreeBSD operating systems?   A process is nothing but an executing program on FreeBSD or Unix-like system. Each process on the…

How To Find Out FreeBSD Version and Patch Level Number

H ow do I find out my FreeBSD server version and patch level of the installed system using command line option?   You can use any one of the following command to display the FreeBSD…

How to Prevent & Disable Mac OS X From Sleeping From the Command Line Terminal Application

I ‘m running a process to complete backup and covert images in Mac OS X laptop. I do not wish to disable sleep manually from my OS X power options (Energy Saver). How do I…

How to display cpu wise usage using top command on FreeBSD Unix operating system

I recently switched from Linux to FreeBSD. On Linux, I press 1 which show me a breakdown of CPU usage per CPU, but it is not working on FreeBSD. How do I find out the…

How to get common name (CN) from SSL certificate using openssl command

I configured and installed a TLS/SSL certificate in /etc/ssl/ directory on Linux server. I was wondering if can I find out the common name (CN) from the certificate using the Linux or Unix command line…

10 Alpine Linux apk Command Examples

I am new Alpine Linux system admin user. How do I use apk command line utility for the package management on Apline Linux server running in cloud or a Linux container? How can I use…