Search a string in directory

Search a string in directory

Shell Script

for i in `ls *`
do
echo $i
cat $i | grep search-string
done

Why HibernateSession.flush()

Reference:

http://docs.jboss.org/hibernate/core/3.3/reference/en/html/objectstate.html#objectstate-flushing

Default behavior:

Flushing the session forces Hibernate to synchronize the in-memory state of the session with the database but does not commit the changes to database.

Usage:

• To force database validation (database constraints) and handle the error no need to wait until commit
• To check duplicate (Force the row to be inserted)
• To get an assigned id
• To update the size of session

Eclipse Maven

Set eclipse work space:

mvn -Declipse.workspace="your Eclipse Workspace" eclipse:configure-workspace
mvn -Declipse.workspace="your Eclipse Workspace" eclipse:add-maven-repo
mvn -Declipse.workspace=D:\eclipse-ws\20120229 eclipse:add-maven-repo
mvn -Declipse.workspace=D:\eclipse-ws\20120229 eclipse:configure-workspace

Create eclipse project resource files:

mvn ecliplse:clean
mvn ecliplse:eclise

Run Single test class or method:

mvn test -Dtest=ClassName

mvn test -Dtest=ClassName#methodName

mvn test -Dtest=com.gwt.server.service.CertServTest
mvn test -Dtest=com.gwt.server.service.CertServTest#testCertDetail

Running a Single Test

Linux File Permission

Linux File Permission 

Linux/Unix Cheat Sheet

http://www.redhat.com/docs/manuals/linux/RHL-6.2-Manual/getting-started-guide/ch-doslinux.html