oracle linux command installation

Oracle Linux is a Linux distribution based on the Red Hat Enterprise Linux (RHEL) operating system released by Oracle Corporation. Oracle Linux has the characteristics of high stability, easy management and excellent performance, and is fully compatible with RHEL, so it is very popular among enterprise users. This article will introduce the installation methods of commonly used commands in Oracle Linux.

1. yum command

yum is one of the commonly used commands in Oracle Linux. It can easily install, update and delete software packages, and can also automatically resolve software package dependencies. relation. The yum command is also based on the RPM package manager, so it supports all RPM packages.

1.1 Install yum

In the Oracle Linux system, yum is not installed by default and needs to be installed manually. The following are the steps to install yum:

First, log in to the system as the root user.

Secondly, use the following command to update the system packages:

yum update

Finally, use the following command to install yum:

yum install yum-utils

After the installation is complete, you can use the yum command to install other software Bag.

1.2 Install the package using yum

To install the package using yum, use the following command:

yum install package_name

For example, to install the Apache web server package, use the following Command:

yum install httpd

1.3 Update package using yum

To update package using yum, use the following command:

yum update package_name

For example, to update the Apache web server package, Please use the following command:

yum update httpd

1.4 Using yum to remove a package

To remove a package using yum, use the following command:

yum remove package_name

For example, to remove the Apache web server software package, please use the following command:

yum remove httpd

2. rpm command

rpm is another commonly used command in Oracle Linux. It is also an RPM package manager. The rpm command can be used to install, update, delete and query software packages. The difference is that the rpm command does not automatically resolve package dependencies, so all dependencies need to be resolved manually.

2.1 Install rpm

In the Oracle Linux system, the rpm command is installed by default, so you do not need to install it manually.

2.2 Install the package using rpm

To install the package using rpm, use the following command:

rpm -ivh package_name.rpm

For example, to install the MySQL database package, use the following command :

rpm -ivh mysql-5.7.32-1.el7.x86_64.rpm

Among them, the -i parameter indicates installing the software package, the -v parameter indicates displaying detailed installation information, and the -h parameter indicates displaying the installation progress bar.

2.3 Use rpm to update the software package

To use rpm to update the software package, please use the following command:

rpm -Uvh package_name.rpm

Among them, the -U parameter indicates updating the software package. The meaning of other parameters is the same as that of the installation command.

2.4 Remove a package using rpm

To remove a package using rpm, use the following command:

rpm -e package_name

For example, to remove a MySQL database package, use the following command ：

rpm -e mysql-5.7.32-1.el7.x86_64

Among them, the -e parameter indicates uninstalling the software package.

3. tar command

The tar command is a commonly used compression and decompression command in Oracle Linux. It can pack multiple files and directories into one file, and can compress and encrypt files.

3.1 Install tar

In Oracle Linux systems, the tar command is also installed by default, so you do not need to install it manually.

3.2 Use tar to package and compress files

To use the tar command to package and compress files, please use the following command:

tar -czvf filename.tar.gz file/

Among them, -c means to create a new file, - z means to compress the file, -v means to display the compression progress, and -f means to specify the output file name. filename.tar.gz represents the output file name, and file/ represents the file to be packaged.

For example, to package and compress all log files in the /var/log directory into the /var/log.tar.gz file, please use the following command:

tar -czvf /var/log.tar.gz /var/log

3.3 Use tar to decompose Compressed file

To use the tar command to decompress a file, use the following command:

tar -xzvf filename.tar.gz

Among them, -x means to decompress the file, -z means to compress the file, and -v means to display the decompression progress. , -f means specifying the input file name.

For example, to decompress the /var/log.tar.gz file to the /var/log directory, use the following command:

tar -xzvf /var/log.tar.gz -C /var/log

Among them, the -C parameter means specifying decompression Table of contents.

Summary

This article introduces the installation and use of commonly used commands in Oracle Linux, including the yum, rpm and tar commands. By mastering these commands, you can easily install and manage software packages in the Oracle Linux system, and you can also compress and decompress files. If you are new to Oracle Linux, it is recommended that you spend some time learning these basic commands to better use the Oracle Linux system.

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