Pig安装

tar -xzvf pig-0.12.1.tar.gz

export PIG_HOME=~/pig-0.12.1
export PATH=$PATH:$PIG_HOME/bin

pig -help

The Pig command script
#
# Environment Variables
#
#     JAVA_HOME                The java implementation to use.    Overrides JAVA_HOME.
#
#     PIG_CLASSPATH Extra Java CLASSPATH entries.
#
#     PIG_USER_CLASSPATH_FIRST If set, add user provided classpath entries to
#                              the top of classpath instead of appending them.
#                              Default is unset, i.e. the classpath entries are
#                              placed normally at the end of a pre-defined classpath.
#
#     HADOOP_HOME/HADOOP_PREFIX     Environment HADOOP_HOME/HADOOP_PREFIX(0.20.205)
#
#     HADOOP_CONF_DIR     Hadoop conf dir
#
#     PIG_HEAPSIZE    The maximum amount of heap to use, in MB. 
#                                        Default is 1000.
#
#     PIG_OPTS            Extra Java runtime options.
#
#     PIG_CONF_DIR    Alternate conf dir. Default is ${PIG_HOME}/conf.
#
#     HBASE_HOME       Optionally, the HBase installation directory.
#                      Defaults to ${PIG_HOME}/share/hbase
#
#     HBASE_CONF_DIR - Optionally, the HBase configuration to run against
#                      when using HBaseStorage. Defaults to ${HBASE_HOME}/conf