Linux and Unix, Open Source, Linux Howtos
Finding your device IP address(s) can be useful for various purpose. For instance, configuring a firewall, DNS and networking. IP addresses can be divided into two major categories, public and …
How to find your Public IP Address in Linux Read More
The primary function of the SAR command is to collect system performance data every day and store it in log files for later display, it collects sar statistics every 10 …
How to Check Avg CPU and Memory Usage from SAR Read More
sed command stands for Stream Editor. It is used to perform basic text transformations in Linux. sed is one of the important command, which plays major role in file manipulations. …
How to delete lines from a file using sed command Read More
NTP stand for Network Time Protocol, which synchronizes the clock between computer systems over the network. NTP server keep all the servers in-sync with accurate time to perform time based …
How to verify if NTP sync is working on Linux? Read More
It is an important task for Linux administrators to monitor disk space usage on any system that’s used for hosting critical applications, in order to prevents the system from becoming …
How to monitor disk space usage with shell script Read More
In servers, Network interfaces either physical or virtual can be enabled or disabled by running some commands. If any change is performed in NIC due to which the interface is …
How to Enable (UP)/Disable (DOWN) Network Interface Port (NIC) in Linux? Read More
As a Linux administrator you might use the command line calculator many times in a day for doing some math, using bc command. I used the bc command several times …
How to use Calculator in Linux command line Read More
As a Linux administrator you might perform a disk partition task quite often. Most of the time the partition table will be altered successfully after the disk partition in the …
How to Reload partition table without Reboot in Linux Read More
A hostname (also known as a Computer Name) is a name which is given to a device (It could be a system, switch, router, etc) that is connected to the …
Best 5 commands to check HostName in Linux Read More
When working on a Linux system, sometimes you need to figure out what processes are running and which PID or PPID is tied to it. It can be used for …
How to find the Process ID of a program in Linux Read More