HADOOP-8386. hadoop script doesn't work if 'cd' prints to stdout (default behavior in Ubuntu). Contributed by Christopher Berner and Andy Isaacson. (harsh)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1391780 13f79535-47bb-0310-9956-ffa450edef68

hadoop-common-project/hadoop-common/CHANGES.txt

@@ -250,6 +250,10 @@ Trunk (Unreleased)
     HADOOP-3957. Change MutableQuantiles to use a shared thread for rolling
     over metrics. (Andrew Wang via todd)
 
+    HADOOP-8386. hadoop script doesn't work if 'cd' prints to stdout
+    (default behavior in some bash setups (esp. Ubuntu))
+    (Chiristopher Berner and Andy Isaacson via harsh)
+
   OPTIMIZATIONS
 
     HADOOP-7761. Improve the performance of raw comparisons. (todd)

hadoop-common-project/hadoop-common/src/main/bin/hadoop

@@ -19,7 +19,7 @@
 
 bin=`which $0`
 bin=`dirname ${bin}`
-bin=`cd "$bin"; pwd`
+bin=`cd "$bin" > /dev/null; pwd`
  
 DEFAULT_LIBEXEC_DIR="$bin"/../libexec
 HADOOP_LIBEXEC_DIR=${HADOOP_LIBEXEC_DIR:-$DEFAULT_LIBEXEC_DIR}

hadoop-hdfs-project/hadoop-hdfs/src/main/bin/hdfs

@@ -17,7 +17,7 @@
 
 bin=`which $0`
 bin=`dirname ${bin}`
-bin=`cd "$bin"; pwd`
+bin=`cd "$bin" > /dev/null; pwd`
 
 DEFAULT_LIBEXEC_DIR="$bin"/../libexec
 HADOOP_LIBEXEC_DIR=${HADOOP_LIBEXEC_DIR:-$DEFAULT_LIBEXEC_DIR}

hadoop-mapreduce-project/bin/mapred

@@ -17,7 +17,7 @@
 
 bin=`which $0`
 bin=`dirname ${bin}`
-bin=`cd "$bin"; pwd`
+bin=`cd "$bin" > /dev/null; pwd`
 
 DEFAULT_LIBEXEC_DIR="$bin"/../libexec
 HADOOP_LIBEXEC_DIR=${HADOOP_LIBEXEC_DIR:-$DEFAULT_LIBEXEC_DIR}

hadoop-yarn-project/hadoop-yarn/bin/yarn

@@ -47,7 +47,7 @@
 #
 
 bin=`dirname "${BASH_SOURCE-$0}"`
-bin=`cd "$bin"; pwd`
+bin=`cd "$bin" > /dev/null; pwd`
 
 DEFAULT_LIBEXEC_DIR="$bin"/../libexec
 HADOOP_LIBEXEC_DIR=${HADOOP_LIBEXEC_DIR:-$DEFAULT_LIBEXEC_DIR}