How to use the vi editor in Linux
The vi editor is a standard editor for all Unix and Linux systems. Its power is not inferior to any latest text editor. Here is a brief introduction to its usage and a small...
Tagged: Linux
How to list directory contents in Linux
ls – list directory contents. List information about the FILEs (the current directory by default). Sort entries alphabetically if none of -cftuvSUX nor –sort is specified. How to list directory contents in Linux Use...
How to list contents of directories in a tree-like format in Linux
Tree is a recursive directory listing program that produces a depth indented listing of files, which is colorized ala dircolors if the LS_COLORS environment variable is set and output is to tty. With no...
Linux command to view user login information
On Linux, To display the currently logged-in user session, you can use the command: w 20:22:13 up 1:29, 1 user, load average: 0.00, 0.01, 0.00: the current system time and system running time, the...
View Linux process with ps command
ps – report a snapshot of the current processes ps displays information about a selection of the active processes. If you want a repetitive update of the selection and the displayed information, use top(1)...
How to view network status in Linux with ss utility
ss – another utility to investigate sockets. ss is used to dump socket statistics. It allows showing information similar to netstat. It can display more TCP and state informations than other tools. Use Example...
How to create mysql database in Linux
MySQL is an open-source relational database management system. Its name is a combination of “My”, the name of co-founder Michael Widenius’s daughter, and “SQL”, the abbreviation for Structured Query Language. In this post, I’m...
Easy way to install OpenVPN Server in Linux
VPN (Virtual Private Network), between the client and the host to establish an encrypted tunnel, the client’s request to encrypt all the way to send to the VPN server. The mainstream VPN is divided...
How to create or remove SWAP partitions in Linux
As you all know, when the Linux system is consuming physical memory, the inactive pages are moved from physical memory to the SWAP space, and the SWAP space can exist as a dedicated SWAP...
How to Flush DNS Cache on Linux
Everyone knows that the DNS server is one of the core components of the Internet. Without the DNS server, users have to use IP addresses to access websites. This is almost an impossible task,...
[Linux Basics] How to change time zone
If your Linux system time zone is not configured correctly, you must manually adjust to the correct local time zone. NTP synchronizes time processing only calculates the offset between local time and UTC time....
Using the Dig command to query DNS records in Linux
Dig ( Domain Information Groper) is a powerful command-line tool that can be used for DNS record queries. Using the dig command, you can query information about various DNS records, including hostname records (A,...
