hadoop.sh

append_jardir_to_classpath()
{
    jardir=$1
    
    for j in `ls $jardir/*.jar`
    do
        if [ -z "$CLASSPATH" ]
        then
            CLASSPATH=$j
        else
            CLASSPATH=$CLASSPATH:$j
        fi
    done
}

append_jardir_to_classpath ~/hadoop
append_jardir_to_classpath ~/hadoop/lib
append_jardir_to_classpath ~/hive/lib
append_jardir_to_classpath ~/pig
append_jardir_to_classpath ~/pig/lib

HADOOP_HOME=~/hadoop
HIVE_HOME=~/hive
PIG_HOME=~/pig

PATH=$PATH:~/hadoop/bin:~/hive/bin:~/pig/bin

export HADOOP_HOME HIVE_HOME CLASSPATH