InfluxDB is a popular time-series database. Learn how to query InfluxDB. In this tutorial, I have installed Influxdb, you can…
Linux
Linux understand Page cache and buffer cache
In this tutorial, I have written about Page cache and buffer cache in Linux System. Most file-system cache data read…
Vulnerability of sudo (CVE-2019-14287)
Step by step Check Vulnerability of sudo CVE-2019-14287 in Linux. This vulnerability has been assigned CVE-2019-14287. The important thing is…
How to use nmap command
In this tutorial, How to use NMAP Security Scanner on Linux. How to scan port, service name and ping v.v…
nl command in Linux with example
In this tutorial, I use nl command to number lines of files in Linux. What does nl command mean? nl…
tr command in Linux with example
In this tutorial, I use the tr command to translate or delete characters. What does tr command mean? tr –…
uniq command in linux with example
In this tutorial, I use uniq command to report or omit repeated lines in Linux. What does uniq command mean?…
cut command in linux with example
In this tutorial, I am use cut command to remove sections from each line of files. What does cut command…
fmt command in linux with example
In this tutorial, I use fmt command to formatting a file, setting the column with and formatting uniform spaces. What…
chown Invalid argument centos solved problem
Good morning, I am working and change ownership folder my home, but I cannot run chown command. It is Error…