Install JDK 1.6 (jdk-6u45-linux-x64.bin) under Linux system (x64)

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Install JDK 1.6 (jdk-6u45-linux-x64.bin) under Linux system (x64)



One, check to see if the JDK is installed:


# Rpm-qa |  --version


Second, download the installation file:



Http://www.oracle.com/technetwork/java/javase/downloads/java-archive-downloads-javase6-419409.html



Download the corresponding version of the JDK according to your liunx version, and if you install a 32-bit JDK on the X64, you will get an error.



To see how many bits of the system:


#uname-A





According to the result, download file: Jdk-6u45-linux-x64.bin






Linux x86:32 bit operating system;



Linux x64:64 bit operating system;



Jdk-6u45-linux-x64-rpm.bin after running will extract a RPM package, can be installed RPM-IUH command;



Jdk-6u45-linux-x64.bin will extract all files to the JDK subdirectory of the current directory after running;



Three, start the installation



(1), first build the folder, the new Java folder under USR:


#mkdir/usr/java


(2), copy the downloaded JDK to the Java directory;



(3), execute command gives installation file 777 permission:


# Cd/usr/java (mkdir java– This directory needs to be created)


A,jdk-6u45-linux-x64-rpm.bin File Installation:


# chmod 777 Jdk-6u45-linux-x64-rpm.bin ← Modify to executable #.
 /jdk-6u45-linux-x64-rpm.bin -ivh jdk-6u45-linux-x64.rpm← Select Yes until installation is complete

B,jdk-6u45-linux-x64.bin File Installation "Recommended installation of this file":


# chmod 777 Jdk-6u45-linux-x64.bin ← Enable the current user to have Execute permissions 
#. /jdk-6u45-linux-x64.bin            ← Select Yes until installation is complete



Installation prompt: error:failed dependencies:/bin/grep is needed by jdk1.6.0_65-2000:1.6.0_65-fcs.x86_64;



Solution: Add two parameters--nodeps and--force in Rpm-ivh jdk-6u45-linux-x64.rpm--nodeps--force;



Four, configure environment variables:



(1), execute the command, open the file:


# Vi/etc/profile


(2), add the configuration environment variable:


Export java_home=/usr/java/jdk1.6. 0_45export java_bin=/usr/java/jdk1.6.0_45/binexport PATH=$ PATH: $JAVA _home/binexport CLASSPATH=.: 
$JAVA _home/lib/dt.jar: $JAVA _home/lib/tools.jarexport Java_ HOME java_bin PATH CLASSPATH


Save File:



Press ESC first to enter control mode, and then


#:wq (Save and exit)


Press the ESC key to jump to command mode:
: w save file but do not exit VI
: W file saves the modification to file without exiting VI
: w! Force save, do not exit VI
: Wq save file and Exit VI
: wq! Force save file and Exit VI
: Q Do not save files, back Vhuvi
: q! Do not save file, Force exit VI
: e! Discard all changes and edit from the last time the file was saved



(3) The implementation takes effect


#. /etc/profile (there are spaces between dots and/)


If you are executing. /etc/profile prompt: Command not found



Solution:



File edit content Error, enter the editing mode: I modify the file;



Then enter the control mode ESC,:WQ save exit;



Finally executed. /etc/profile file entry into force;



VI mode, enter: Set Nu can display the line number.



Five, uninstall:


#java-version


Six, uninstall the JDK:



To view JDK information:


#rpm-Q JDK


Uninstalling the JDK:


#rpm-E--nodeps jdk-1.6.0_45-fcs.i586


Confirm Uninstall again:


#rpm-Q JDK





Install JDK 1.6 (jdk-6u45-linux-x64.bin) under Linux system (x64)


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