To install Tomcat on Linux using commands, you can follow the steps below:

1. Open your Linux terminal.
2. Update the system package manager by typing the command:

sudo apt-get update

This command updates the package lists for upgrades and installs on your system.

• Install Java Development Kit (JDK) by typing the command:

sudo apt-get install default-jdk

This command installs the default JDK package that includes the Java Runtime Environment (JRE) and the Java Development Kit (JDK).

• Download the latest version of Tomcat from the official Apache Tomcat website by typing the command:

wget https://downloads.apache.org/tomcat/tomcat-<VERSION>/bin/apache-tomcat-<VERSION>.tar.gz

Replace <VERSION> with the latest version number of Tomcat.

• Extract the downloaded Tomcat archive by typing the command:

tar -xvzf apache-tomcat-<VERSION>.tar.gz

This command extracts the contents of the archive to a new directory named apache-tomcat-<VERSION>.

• Move the extracted Tomcat directory to the /usr/share/ directory by typing the command:

sudo mv apache-tomcat-<VERSION> /usr/share/

• Create a symbolic link to the Tomcat directory by typing the command:

sudo ln -s /usr/share/apache-tomcat-<VERSION> /usr/share/tomcat

This command creates a symbolic link named tomcat to the Tomcat directory.

• Set the JAVA_HOME environment variable by typing the command:

export JAVA_HOME=/usr/lib/jvm/java-1.11.0-openjdk-amd64

This command sets the JAVA_HOME environment variable to the path of the Java Development Kit (JDK) that you installed in step 3.

• Start Tomcat by typing the command:

/usr/share/tomcat/bin/startup.sh

This command starts the Tomcat server.

1. Verify that Tomcat is running by typing the command:

sudo systemctl status tomcat

This command should output the status of Tomcat, indicating that it is active and running.