cshell script / linux related scripts

bash_profile for hadoop

# .bash_profile

# Get the aliases and functions
if [ -f ~/.bashrc ]; then
        . ~/.bashrc
fi

#JDK related exports
export JAVA_HOME=/bin/jdk1.6.0_31/bin/java
export PATH=$PATH:$HOME/bin
export PATH=$PATH:/bin/jdk1.6.0_31/bin

#Hadoop installations
export HADOOP_PREFIX=/bin/hadoop-1.2
export PATH=$PATH:/bin/hadoop-1.2/bin


#Hadoop - hive installations
export HIVE_HOME=/bin/hive-0.11
export PATH=$PATH:$HIVE_HOME/bin

cshell related - java compile script

#!/usr/bin/csh

#use dirname / dir to get script running location 
${0}: gets argument passed on. 
set my_var="myvar ${0}"
echo ${my_var}

if ( "${1}" == "" ) then

    echo "boo"

else 
    echo "no!"
endif 

#################################################
# 
# Comment goes here. 
#
#################################################

if (( $?CLASSPATH )) then
	# do nothing
else
	setenv CLASSPATH "."
endif

#assuming  all jars in /lib
setenv CLASSPATH ${CLASSPATH}:/app/lib/myJar.jar
setenv CLASSPATH ${CLASSPATH}:/app/lib/myJar2.jar

#set class path to search in our compiled to-location
setenv CLASSPATH ${CLASSPATH}:/app/bin

#set class path to include config
setenv CLASSPATH ${CLASSPATH}:/app/myConfig/


setenv JAVA_HOME "/app/java/jdk1.6.0_12"
echo "JAVA_INSTALLED_PATH=$JAVA_HOME"

set JAVA_MAIN_CLASS_TO_RUN ="MyMainClass" #rename this to the class to run from.

set mydate="`/bin/date +%Y%m%d`"

#compiles all files in /my/src
$JAVA_HOME/bin/javac -g -d /my/output/location/bin -sourcepath /my/src /my/src/*.java 

#runs java file 
$JAVA_HOME/bin/java ${JAVA_MAIN_CLASS_TO_RUN} "arg1" "arg2" "arg3"

echo "boo" > ${myfile} #writes to file
echo "boo" >> ${myfile} #appends to file

isql -a -b -c << HERE_DOCS > ${myfile} #get sql output to file 


HERE_DOCS

source ${MY_DIR}/script2.sh #executes other script. other script can use defined variables in this script too.