Create a container position in /etc/yum.repos.d, extension must be .repo
#cd /etc/yum.repos.d
#vim yum.repo create a repository file name can easily define, write the following contents in the file
[Base] # represents the container name, must exist in parentheses, the name of which can be taken lightly
name = base # illustrate the significance of the container, can easily write
baseurl = ftp:. //192.168.0.6/pub/Server # 192 168. 0. 6 YUM is your source address, this is very important.
enabled = 1 # if start = 0 is not started, do not start you can not use that source
gpgcheck = 0 # Verify Can Do
gpgkey = file: /// etc / pki / rpm-gpg / RPM-GPG-KEY-redhat-release # key can not verify.
Command: #yum repolist all display containers currently in use which
If the query is out of the container, status to disabled, the To profile, as enabled = 1
/etc/yum.conf
yum.conf This profile is mainly yum client to use, go inside the main provisions rpm with yum package of information on the server.
[Main] #main beginning of the block is used to configure the client may also specify a source yum after main (not recommended), yum specify the same source /etc/yum.repo.d
cacheDir = / var / cache / yum
#cachedir: yum cache directory, yum rpm packages and databases in this storage download, usually / var / cache / yum.
keepcache = 0 # 0 means no saving the downloaded file, 1 save the downloaded file, the default is not saved
debuglevel=2
#debuglevel: debug level, 0──10, the default installation is two seemingly only records and delete records
logfile = / var / log / yum.log # log file specified yum
pkgpolicy = policy newest # packet, if the configuration of the multi-source yum, there are different versions of the same software on different sources of yum, Newest install the latest version, the value of the lastest, yum on the server ID will be listed in alphabetical order, Finally, select the software installed on the server
distroverpkg=centos-release
# Specify a package, yum will judge you according to release this package, the default is redhat-release, it can be any rpm package installed for their own release.
tolerant=1
#tolerent, there are two options 1 and 0, indicating whether yum tolerate errors associated with the command-line package occur, for example, you want to install three packages 1, 2, and 3 of which had been installed, if you set 1, the error message does not appear yum. The default is 0.
exactarch = 1
#exactarch, there are two options 1 and 0, does it mean you just upgrade and install the same package package cpu system, if set to 1, if you a rpm i386 installed, the yum package does not come with the i686 upgrade.
retries=20
#retries, network connection retry after an error occurs, if set to 0, it will infinitely try again.
obsoletes=1
gpgcheck=1
# Gpgchkeck = 0 and 1 have two options, whether to represent the gpg check whether, if not this one, the default is to check.
plugins = 1 # whether to enable plug-ins, default 1 is allowed, 0 if not allowed
reposdir = / etc / yy.rm # default file extension /etc/yum.repos.d/ low xx.repo
# Include the default will be coming in regardless of the configuration file that is /etc/yum.repos.d/xx.repo how many how many of each there are [name] Finally, in fact, have been integrated into one which wants to see repeated [ name] should be behind the front cover - front or back cover it? Test behind the front cover is enabled
exclude=xxx
#exclude exclude certain software upgrades in addition to the list, you can use wildcards, list the items to use separated by a space, such as landscaping for this package is installed, the Chinese patch friend particularly useful.
keepcache=[1 or 0]
# Set keepcache = 1, yum retains cache after successful installation package headers (headers) and software package. The default value is not saved keepcache = 0
reposdir = [directory containing the files .repo absolute path]
# This option specifies the absolute path to the user .repo file. ([Repository] effect the same fragment /etc/yum.conf file) file containing information .repo depots. in
YUM command
Remove the software installed with YUM yum install xxx, yum will query the database, with or without this package, if there is, then check its dependent relationship conflict, if not rely on conflict, so best to download and install; if so, it will be given prompt asking whether you want to install dependence, or delete the conflicting package, you can judge for yourself.
Delete command is, yum remove xxx, as with the installation, yum will query the database, gives tips to resolve dependencies.
YUM to install packages
Command: yum install
YUM remove packages
Command: yum remove
YUM query software with information, we often encounter such a situation, you want to install a software, only that it and certain aspects relating to, but not exactly know its name. Then yum query feature is working. You can use this command yum search keyword to search, for example, we want to install a Instant Messenger, but do not know in the end what, this time may wish to search for such a command yum search messenger, yum will search all the available rpm description of , lists all the relevant descriptions and messeger rpm package, so we may get gaim, kopete, etc. and choose from there. Sometimes we also encounter the installation of a package, but do not know its purpose, we can use yum info packagename this command to obtain information.
1. Use YUM to find package
Command: yum search
2. List all packages that can be installed
Command: yum list
3. List all packages that can be updated
Command: yum list updates
4. List all installed packages
Command: yum list installed
5. List all installed packages but not within the Yum Repository
Command: yum list extras
6. List the specified package
Command: yum list
7. Getting information about packages YUM
Command: yum info
8. List all the information package
Command: yum info
9. List all the updated information package
Command: yum info updates
10. List all the installed package information
Command: yum info installed
11. List all installed but not in the package Yum Repository Information
Command: yum info extras
12. Listing packages which provide file
Command: yum provides
Clear YUM cache
yum will download the package and the header is stored in the cache are not automatically deleted. If we feel that they take up disk space, you can use yum clean commands to clear, more precise usage is yum clean headers clear the header, yum clean packages remove the downloaded rpm package, yum clean all peremptorily child ends
1. Package Clear the cache directory (/ var / cache / yum) under
命令：yum clean packages
2. headers clear the cache directory (/ var / cache / yum) under
Command: yum clean headers
The old headers 3. Clear the cache directory (/ var / cache / yum) under
Command: yum clean
Oldheaders
4. packages and old headers clear the cache directory (/ var / cache / yum) under
命令：yum clean, yum clean
all (= yum clean packages; yum clean oldheaders)