linux ubuntu装机到可实现java（eclipse，intellij IDEA，android）开发全过程

#!/bin/sh
#
#---------------------------------------------------------------------
#IntelliJ IDEA startup script.
#---------------------------------------------------------------------
#

message()
{
TITLE="Cannotstart IntelliJ IDEA"
if[ -t 1 ]; then
echo"ERROR: $TITLE\n$1"
elif[ -n `which zenity` ]; then
zenity--error --title="$TITLE" --text="$1"
elif[ -n `which kdialog` ]; then
kdialog--error --title "$TITLE" "$1"
elif[ -n `which xmessage` ]; then
xmessage-center "ERROR: $TITLE: $1"
elif[ -n `which notify-send` ]; then
notify-send"ERROR: $TITLE: $1"
else
echo"ERROR: $TITLE\n$1"
fi
}

UNAME=`whichuname`
GREP=`whichegrep`
GREP_OPTIONS=""
CUT=`whichcut`
READLINK=`whichreadlink`
XARGS=`whichxargs`
DIRNAME=`whichdirname`
MKTEMP=`whichmktemp`
RM=`whichrm`
CAT=`whichcat`
TR=`whichtr`

if[ -z "$UNAME" -o -z "$GREP" -o -z "$CUT"-o -z "$MKTEMP" -o -z "$RM" -o -z "$CAT"-o -z "$TR" ]; then
message"Required tools are missing - check beginning of \"$0\"file for details."
exit1
fi

OS_TYPE=`"$UNAME"-s`

#---------------------------------------------------------------------
#Locate a JDK installation directory which will be used to run theIDE.
#Try (in order):
,JDK_HOME, JAVA_HOME, "java" in PATH.
#---------------------------------------------------------------------
if[ -n "$IDEA_JDK" -a -x "$IDEA_JDK/bin/java" ];then
JDK="$IDEA_JDK"
elif[ -n "$JDK_HOME" -a -x "$JDK_HOME/bin/java" ];then
JDK="$JDK_HOME"
elif[ -n "$JAVA_HOME" -a -x "$JAVA_HOME/bin/java" ];then
JDK="$JAVA_HOME"
else
JAVA_BIN_PATH=`whichjava`
if[ -n "$JAVA_BIN_PATH" ]; then
if[ "$OS_TYPE" = "FreeBSD" -o "$OS_TYPE"= "MidnightBSD" ]; then
JAVA_LOCATION=`JAVAVM_DRYRUN=yesjava | "$GREP" ‘^JAVA_HOME‘ | "$CUT" -c11-`
if[ -x "$JAVA_LOCATION/bin/java" ]; then
JDK="$JAVA_LOCATION"
fi
elif[ "$OS_TYPE" = "SunOS" ]; then
JAVA_LOCATION="/usr/jdk/latest"
if[ -x "$JAVA_LOCATION/bin/java" ]; then
JDK="$JAVA_LOCATION"
fi
elif[ "$OS_TYPE" = "Darwin" ]; then
JAVA_LOCATION=`/usr/libexec/java_home`
if[ -x "$JAVA_LOCATION/bin/java" ]; then
JDK="$JAVA_LOCATION"
fi
fi

if[ -z "$JDK" -a -x "$READLINK" -a -x "$XARGS"-a -x "$DIRNAME" ]; then
JAVA_LOCATION=`"$READLINK"-f "$JAVA_BIN_PATH"`
case"$JAVA_LOCATION" in
*/jre/bin/java)
JAVA_LOCATION=`echo"$JAVA_LOCATION" | "$XARGS" "$DIRNAME"| "$XARGS" "$DIRNAME" | "$XARGS""$DIRNAME"`
if[ ! -d "$JAVA_LOCATION/bin" ]; then
JAVA_LOCATION="$JAVA_LOCATION/jre"
fi
;;
*)
JAVA_LOCATION=`echo"$JAVA_LOCATION" | "$XARGS" "$DIRNAME"| "$XARGS" "$DIRNAME"`
;;
esac
if[ -x "$JAVA_LOCATION/bin/java" ]; then
JDK="$JAVA_LOCATION"
fi
fi
fi
fi

if[ -z "$JDK" ]; then
message"No JDK found. Please validate either IDEA_JDK, JDK_HOME orJAVA_HOME environment variable points to valid JDK installation."
exit1
fi

VERSION_LOG=`"$MKTEMP"-t java.version.log.XXXXXX`
"$JDK/bin/java"-version 2> "$VERSION_LOG"
"$GREP""64-Bit|x86_64" "$VERSION_LOG" > /dev/null
BITS=$?
"$RM"-f "$VERSION_LOG"
if[ $BITS -eq 0 ]; then
BITS="64"
else
BITS=""
fi

#---------------------------------------------------------------------
#Ensure IDE_HOME points to the directory where the IDE is installed.
#---------------------------------------------------------------------
SCRIPT_LOCATION=$0
if[ -x "$READLINK" ]; then
while[ -L "$SCRIPT_LOCATION" ]; do
SCRIPT_LOCATION=`"$READLINK"-e "$SCRIPT_LOCATION"`
done
fi

IDE_HOME=`dirname"$SCRIPT_LOCATION"`/..
IDE_BIN_HOME=`dirname"$SCRIPT_LOCATION"`

#---------------------------------------------------------------------
#Collect JVM options and properties.
#---------------------------------------------------------------------
if[ -n "$IDEA_PROPERTIES" ]; then
IDE_PROPERTIES_PROPERTY="-Didea.properties.file=\"$IDEA_PROPERTIES\""
fi

MAIN_CLASS_NAME="$IDEA_MAIN_CLASS_NAME"
if[ -z "$MAIN_CLASS_NAME" ]; then
MAIN_CLASS_NAME="com.intellij.idea.Main"
fi

VM_OPTIONS_FILE="$IDEA_VM_OPTIONS"
if[ -z "$VM_OPTIONS_FILE" ]; then
VM_OPTIONS_FILE="$IDE_BIN_HOME/idea$BITS.vmoptions"
fi

if[ -r "$VM_OPTIONS_FILE" ]; then
VM_OPTIONS=`"$CAT""$VM_OPTIONS_FILE" | "$GREP" -v "^#.*"| "$TR" ‘\n‘ ‘ ‘`
VM_OPTIONS="$VM_OPTIONS-Djb.vmOptionsFile=\"$VM_OPTIONS_FILE\""
fi

IS_EAP="false"
if[ "$IS_EAP" = "true" ]; then
OS_NAME=`echo$OS_TYPE | "$TR" ‘[:upper:]‘ ‘[:lower:]‘`
AGENT_LIB="yjpagent-$OS_NAME$BITS"
if[ -r "$IDE_BIN_HOME/lib$AGENT_LIB.so" ]; then
AGENT="-agentlib:$AGENT_LIB=disablej2ee,disablealloc,delay=10000,sessionname=IntelliJIdea13"
fi
fi

COMMON_JVM_ARGS="\"-Xbootclasspath/a:$IDE_HOME/lib/boot.jar\"-Didea.paths.selector=IntelliJIdea13 $IDE_PROPERTIES_PROPERTY"
IDE_JVM_ARGS=""
ALL_JVM_ARGS="$VM_OPTIONS$COMMON_JVM_ARGS $IDE_JVM_ARGS $AGENT $REQUIRED_JVM_ARGS"

CLASSPATH="$IDE_HOME/lib/bootstrap.jar"
CLASSPATH="$CLASSPATH:$IDE_HOME/lib/extensions.jar"
CLASSPATH="$CLASSPATH:$IDE_HOME/lib/util.jar"
CLASSPATH="$CLASSPATH:$IDE_HOME/lib/jdom.jar"
CLASSPATH="$CLASSPATH:$IDE_HOME/lib/log4j.jar"
CLASSPATH="$CLASSPATH:$IDE_HOME/lib/trove4j.jar"
CLASSPATH="$CLASSPATH:$IDE_HOME/lib/jna.jar"
CLASSPATH="$CLASSPATH:$JDK/lib/tools.jar"
if[ -n "$IDEA_CLASSPATH" ]; then
CLASSPATH="$CLASSPATH:$IDEA_CLASSPATH"
fi
exportCLASSPATH

LD_LIBRARY_PATH="$IDE_BIN_HOME:$LD_LIBRARY_PATH"
exportLD_LIBRARY_PATH

#---------------------------------------------------------------------
#Run the IDE.
#---------------------------------------------------------------------
whiletrue ; do
eval"$JDK/bin/java" $ALL_JVM_ARGS -Djb.restart.code=88$MAIN_CLASS_NAME "$@"
test$? -ne 88 && break
done