vi /etc/profile文件
段落最后添加 相应的文件路径
#set java
export JAVA_HOME=/usr/local/jdk
export CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar
export PATH=$JAVA_HOME/bin:$PATH
#set tomcat
export CATALINA_BASE=/usr/local/tomcat
export CATALINA_HOME=/usr/local/tomcat
#set grails
export GRAILS_HOME=/usr/local/grails-1.3.7
export PATH=$PATH:$GRAILS_HOME/bin