Maven Important commands and Lifecycle phases.

Maven_Phases__Commands.txt

Lifecycle Phase		Description
validate		Validates whether project is correct and all necessary information is available to complete the build process.
initialize		Initializes build state, for example set properties
generate-sources		Generate any source code to be included in compilation phase.
process-sources		Process the source code, for example, filter any value.
generate-resources		Generate resources to be included in the package.
process-resources		Copy and process the resources into the destination directory, ready for packaging phase.
compile		Compile the source code of the project.
process-classes		Post-process the generated files from compilation, for example to do bytecode enhancement/optimization on Java classes.
generate-test-sources		Generate any test source code to be included in compilation phase.
process-test-sources		Process the test source code, for example, filter any values.
test-compile		Compile the test source code into the test destination directory.
process-test-classes		Process the generated files from test code file compilation.
test		Run tests using a suitable unit testing framework(Junit is one).
prepare-package		Perform any operations necessary to prepare a package before the actual packaging.
package		Take the compiled code and package it in its distributable format, such as a JAR, WAR, or EAR file.
pre-integration-test		Perform actions required before integration tests are executed. For example, setting up the required environment.
integration-test		Process and deploy the package if necessary into an environment where integration tests can be run.
pre-integration-test		Perform actions required after integration tests have been executed. For example, cleaning up the environment.
verify		Run any check-ups to verify the package is valid and meets quality criterias.
install		Install the package into the local repository, which can be used as a dependency in other projects locally.
deploy		Copies the final package to the remote repository for sharing with other developers and projects.

To check for updates of all the dependencies present in the pom.xml:
mvn versions:display-dependency-updates

mvn validate > mvncmd.txt
mvn initialize > mvncmd.txt
mvn generate-sources > mvncmd.txt
mvn process-sources > mvncmd.txt
mvn generate-resources > mvncmd.txt
mvn process-resources > mvncmd.txt
mvn compile > mvncmd.txt
mvn process-classes > mvncmd.txt
mvn generate-test-sources > mvncmd.txt
mvn process-test-sources > mvncmd.txt
mvn generate-test-resources > mvncmd.txt
mvn process-test-resources > mvncmd.txt
mvn test-compile > mvncmd.txt
mvn process-test-classes > mvncmd.txt
mvn test > mvncmd.txt
mvn prepare-package > mvncmd.txt
mvn package > mvncmd.txt
mvn pre-integration-test > mvncmd.txt
mvn integration-test > mvncmd.txt
mvn post-integration-test > mvncmd.txt
mvn verify > mvncmd.txt
mvn install > mvncmd.txt
mvn deploy > mvncmd.txt
mvn pre-site > mvncmd.txt
mvn site > mvncmd.txt
mvn post-site > mvncmd.txt
mvn site-deploy > mvncmd.txt
mvn pre-clean > mvncmd.txt
mvn clean > mvncmd.txt
mvn post-clean > mvncmd.txt