May 10, 2020

How to remove password from /etc/shadow

The /etc/shadow file stores actual password in encrypted format and other passwords related information such as user name, last password change date, password expiration values, etc,. Historically, the /etc/passwd file […]
January 2, 2020

How to run multiple commands with ‘docker run’ command

Sometimes we need to run multiple shell commands in docker when we start the docker container To run multiple commands in docker, use /bin/bash -c and […]
January 16, 2019

Nodejs 8 installs nodejs 6 version on Centos/Amazon/Ubuntu Linux. How to solve the issue?

Yesterday while updating nodejs on my jenkins slave server(Amazon linux), I was contineouslly failing. The thing is I already had a nodejs 6 installed and I […]
March 26, 2018

How to add task in cron

Each user has their own cron file including the root user. If the cron task requires administrative privilege then it can be added to the root […]
March 25, 2018

How to setup password less login on Linux

SSH gives secure remote connection to the remote systems. It is used commonly in Linux and systems administration area. We can duplicate keys to remote and […]