Transferred from Baidu Library: http://wenku.baidu.com/view/ccbf86074a7302768e993957.html
Using yum to install and uninstall software, there is a premise that the packages installed by yum are in rpm format.
The installation command is, yum install ~ , yum will query the database to see if there is this package, and if so, check
Its dependency conflict relationship, if there is no dependency conflict, then it is best to download and install ; if there is, a prompt will be given to ask
Whether you want to install dependencies at the same time, or delete conflicting packages, you can make your own judgment;
The command to delete is yum remove ~ . Like installation, yum will also query the database and give solutions to dependencies
Relationship tips.
Where ~ represents the software name
1. Install the package command with YUM : yum install ~
2. Use YUM to remove the package command: yum remove ~
2. Use yum to query the software you want to install
We often encounter such a situation, want to install a software, only know that it is related to a certain aspect, but can not be sure
know its name. At this time , the query function of yum comes into play. We can use yum search keyword like this
command to search, for example, if we want to install an Instant Messenger , but we don't know which ones are, then
You may wish to use a command such as yum search messenger to search, yum will search all available rpm descriptions, list
Out all the rpm packages related to messeger in the description , so we may get gaim , kopete , etc., and from
choose.
Sometimes we also encounter a package installed, but we do not know its purpose, we can use yum info packagename this
command to obtain information.
1. Use YUM to find packages
Command: yum search ~
2. List all installable packages
Command: yum list
3. List all updatable packages
Command: yum list updates
4. List all installed packages
Command: yum list installed
5. List all installed packages but not in Yum Repository
Command: yum list extras
6. List the specified packages
Command: yum list ~
7. Use YUM to get package information
Command: yum info ~
8. List information about all packages
Command: yum info
9. List all updatable package information
Command: yum info updates
10. List all installed package information
Command: yum info installed
11. List all installed packages but not in Yum Repository
Command: yum info extras
12. List which files are provided by the package
Command: yum provides~
3. Clear YUM cache
yum will store downloaded packages and headers in the cache and will not delete them automatically. if we feel it
They take up disk space and can be removed using the yum clean command, or more precisely yum clean headers
Clear header , yum clean packages to clear downloaded rpm packages, yum clean all to clear all.
1. Clear the packages in the cache directory (/var/cache/yum)
Command: yum clean packages
2. Clear the headers under the cache directory (/var/cache/yum)
Command: yum clean headers
3. Clear the old headers in the cache directory (/var/cache/yum)
命令：yum clean oldheaders
4. Clear the packages and old headers in the cache directory (/var/cache/yum)
命令：yum clean, yum clean all (= yum clean packages; yum clean oldheaders)
4. Example of using the yum command tool
yum update upgrade system
yum install ~ install the specified package
yum update ～ upgrade the specified package
yum remove - uninstall the specified software
yum grouplist View installed and available software groups in the system, available ones can be installed
yum groupupinstall ~ install one of the available software groups shown in the previous command
yum groupupdate — update packages of the specified software group
yum grooupremove ~ uninstall packages in the specified software group
yum deplist - Query the dependencies of the specified package
yum list yum\* list all packages starting with yum
yum localinstall ~ install rpm packages from hard disk and use yum to resolve dependencies
5.Yum advanced management application skills
Tip 1: Speed up your yum . Use yum 's extension plug-in yum - fastestmirror , I personally think this plug-in
The software is very effective, the speed is really improved significantly,
#yum ‐y install yum‐fastestmirror
Note that on Centos 4 , the name is yum ‐ plugin ‐ fastestmirror
Tip 2: Extend your rpm package. Many packages are not officially available . How can I get it ? Do you want me to compile it myself ? Well, you install this
A package , this is the oh redhat5 . You can go to php#B">http://dag.wieers.com/rpm/FAQ.php#B this
come to find
# Red Hat Enterprise Linux 5 / i386:
rpm‐Uhvhttp://apt.sw.be/redhat/el5/en/i386/rpmforge/RPMS/rpmforge‐release‐0.3.6‐1.el5.rf.i3
86.rpm
# Red Hat Enterprise Linux 5 / x86_64:
rpm‐Uhvhttp://apt.sw.be/redhat/el5/en/x86_64/rpmforge/RPMS//rpmforge‐release‐0.3.6‐1.el5.r
f.x86_64.rpm
#ATrpms
[atrpms]
name= CentOS‐$releasever – ATrpms
baseurl=http://dl.atrpms.net/el$releasever‐$basearch/atrpms/stable
gpgcheck=1
gpgkey=http://ATrpms.net/RPM‐GPG‐KEY.atrpms
Tip 3: Find rpm . What if you still can't find the rpm package? Go to the following website. Basically all collected, you
You can use advanced search to see . http://rpm.pbone.net/
Tip 4: Download the RPM source package through the yum tool . The premise is that the package yum - utils is installed . If there is an installation
Dress up.
#yum downloader ‐‐ source ; RPM source package
#yum downloader ‐‐source vsftpd
Of course , if there is no source package, a source package must be added .
[linux‐src]
name=Centos$releasever‐$basearch‐ Source
baseurl=http://mirrors.163.com/centos/$releasever/os/SRPMS/
enabled=1
gpgcheck=1
gpgkey=file:///etc/pki/rpm‐gpg/RPM‐GPG‐KEY‐redhat‐release
Tip 5: Software group installation
Development package , we can use the package to install.
#yum grouplist This will list all packages
For example, we want to install development-related packages
#yum groupinstall "Development Libraries"
#yum groupinstall "Development Tools"
For example, we want to install Chinese support
#yum groupinstall "Chinese Support"
#yum deplist package1 #View program package1 dependencies
The use of all the above command parameters can be viewed with man :
[root@F7 common documents ]$ man yum
yum ‐ y install package name (support * ): automatically select y , fully automatic
yum install package name (support * ): manually select y or n
yum remove package name ( * is not supported )
rpm ‐ ivh package name (support * ): install rpm package
rpm - e package name (not supported * ): uninstall rpm package
Upgrade the kernel: #yum install kernel ‐ headers kernel ‐ devel __