linux_commands

Linux commands that saved my days.

Recover lost OS entries on your GRUB.

When you install one linux on your machine and your GRUB does not display the others systems. This is useful for GRUB to recognize it later.

sudo apt-get update

sudo apt-get install os-prober

sudo os-prober

sudo update-grub

Install nvm for node

sudo apt install curl

curl https://raw.githubusercontent.com/creationix/nvm/master/install.sh | bash

The nvm installer script creates environment entry to login script of the current user. You can either logout and login again to load the environment or execute the below command to do the same.

source ~/.profile

Install the latest version of node.js. Here node is the alias for the latest version.

nvm install node

To install a specific version of node:

nvm install 12.18.3

You can also select a different version for the current session. The selected version will be the currently active version for the current shell only.

nvm use 12.18.3

To find the default Node version set for the current user, type:

nvm run default --version

Install snap

sudo apt install snapd

Install .NET Core

Install snap ☝️, then

sudo snap install dotnet-sdk --classic

Install Dbeaver (database manager)

sudo snap install dbeaver-ce

Install Java

Install default JRE and JDK

sudo apt install default-jre

sudo apt install default-jdk

Install a especific version

sudo apt install openjdk-8-jdk

sudo apt install openjdk-8-jre

or

sudo apt install openjdk-9-jdk

sudo apt install openjdk-9-jre

or

sudo apt install openjdk-11-jdk

sudo apt install openjdk-11-jre

Set default Java JDK

sudo update-alternatives --config java

Then select your preffered JDK.

Start and stop some database services

For MYSQL

sudo service mysql start

sudo service mysql stop

For Mongo

sudo service mongod start

sudo service mongod stop