pig安装
第一步：下载安装包：http://mirrors.cnnic.cn/apache/pig/ （我的hadoop版本是1.2.1,我先下的pig-0.15总是提示不支持，于是我直接删了，重新下载的pig-0.13）
第二步：将下载的安装包解压：tar -xvf pig-0.13.0.tar.gz
第三步：配置环境：
1 export JAVA_HOME=/usr/lib/jvm/java-6-openjdk-i386 2 export JRE_HOME=$JAVA_HOME/jre 3 export CLASSPATH=$JAVA_HOME/bin:$JRE_HOME/bin:$CLASSPATH 4 export HADOOP_HOME=/home/xunying/hadoop-1.2.1 5 export PIG_INSTALL=/home/xunying/soft/pig-0.13.0 6 export PATH=$JAVA_HOME/bin:$JRE_HOME/bin:$HADOOP_HOME/bin:$PIG_INSTALL/bin:$PATH第四步
第四步：测试：pig
xunying@xunying-OptiPlex-3020:~/soft$ pig Warning: $HADOOP_HOME is deprecated. 15/09/15 21:46:30 INFO pig.ExecTypeProvider: Trying ExecType : LOCAL 15/09/15 21:46:30 INFO pig.ExecTypeProvider: Trying ExecType : MAPREDUCE 15/09/15 21:46:30 INFO pig.ExecTypeProvider: Picked MAPREDUCE as the ExecType 2015-09-15 21:46:30,584 [main] INFO org.apache.pig.Main - Apache Pig version 0.13.0 (r1606446) compiled Jun 29 2014, 02:29:34 2015-09-15 21:46:30,584 [main] INFO org.apache.pig.Main - Logging error messages to: /home/xunying/soft/pig_1442324790584.log 2015-09-15 21:46:30,597 [main] INFO org.apache.pig.impl.util.Utils - Default bootup file /home/xunying/.pigbootup not found 2015-09-15 21:46:30,673 [main] INFO org.apache.pig.backend.hadoop.executionengine.HExecutionEngine - Connecting to hadoop file system at: hdfs://localhost:9000 2015-09-15 21:46:30,803 [main] INFO org.apache.pig.backend.hadoop.executionengine.HExecutionEngine - Connecting to map-reduce job tracker at: localhost:9001 grunt>
这样就成功了，记得比较简陋，只是给自己来个学习笔记，希望有帮助
