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What is the rpm statement for installing jdk in linux
Home Operation and Maintenance Linux Operation and Maintenance What is the rpm statement for installing jdk in linux?

What is the rpm statement for installing jdk in linux?

Jun 20, 2022 pm 05:05 PM
linux

The rpm statement for installing jdk in linux is "rpm -ivh jdk-...-linux-x64.rpm"; the rpm package is a way in Linux to install the required software through database management. The management program on the host can realize and manage the installation, viewing and deletion of software.

What is the rpm statement for installing jdk in linux?

#The operating environment of this tutorial: linux7.3 system, Dell G3 computer.

What is the rpm statement for installing jdk in linux

The rpm package is a management program that installs the required software on the host through database management; rpm is commonly developed by Red Hat For the installation, upgrade, uninstallation and query of software packages, Linux uses rpm to implement and manage the installation, viewing and deletion of software.

1. Download the jdk version of rpm, ORACLE official website, download the .rpm package.

2. Upload the downloaded JDK to the installation server

3. Authorize the rpm file

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chmod +x jdk jdk-8u202-linux-x64.rpm

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4. Install the rpm file

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 rpm -ivh jdk-8u202-linux-x64.rpm

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5. Enter the JDK installation directory

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cd /usr/java/

ls -all

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6. Configure the environment variables of the linux server

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vim /etc/profile

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JAVA_HOME=/usr/java/jdk1.8.0_301-amd64

CLASSPATH=.:$JAVA_HOME/lib/tools.jar:$JAVA_HOME/lib/dt.jar

PATH=$JAVA_HOME/bin:$PATH

export JAVA_HOME CLASSPATH PATH

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Save Esc wq:

7. Refresh /etc/profile

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source /etc/profile

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8. Test the java -version output

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java -version

javac -version

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9. If it is a single user Install a specific version individually.

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#添加 - 表示切换环境变量,此处需要用到用户自己的环境变量信息

su - leo

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10. Install a copy of jdk (different versions), the installation method is the same (different versions, different paths under /usr/java).

11. Enter the current user’s own environment configuration file

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cd ~

ls -all

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##12. vim .bash_profile

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#有可能在 /usr/local下面

PATH=$HOME/bin:/usr/java/jdk1.7.0_45/bin:/usr/java/jdk1.7.0_45/jre/bin:$PATH

JAVA_HOME=/usr/java

export JAVA_HOME

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Save Esc wq:

13. Test the JAVA configuration information of the current user

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#当前用户下执行

java -version

javac -version

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14. Uninstall the jdk version that comes with the system:

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查看自带的jdk: 

#rpm -qa|grep gcj 

看到如下信息: 

libgcj-4.1.2-44.el5 

java-1.4.2-gcj-compat-1.4.2.0-40jpp.115 

使用rpm -e --nodeps 命令删除上面查找的内容: 

#rpm -e –nodeps java-1.4.2-gcj-compat-1.4.2.0-40jpp.115

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15. Uninstall the jkd version installed by rpm

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查看安装的jdk: 

#rpm -qa|grep jdk 

看到如下信息: 

jdk-1.6.0_22-fcs 

卸载: 

#rpm -e --nodeps jdk-1.6.0_22-fcs

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#直接使用yum安装会装在默认路径,此处瞎子啊rpm包自己安装

#安装yum-utils

yum -y install yum-utils

#查询JDK

yum search java|grep jdk

#下载rpm包

yumdownloader java-1.8.0-openjdk

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Recommended learning:

Linux video tutorial

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