software management rpm

I. Introduction to rpm

rpm package name:

Software name Version number (major version, minor version, revision number) operating system

#Cannot resolve dependencies automatically

Example: openssh-6.6.1p1-31.el7.x86_64.rpm

The number in front of the number is the name and the number is the version number: the first major version number, the second minor version number, the one with the horizontal bar is the revision number, el a few ------- operating version system

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Installation with rpm needs to consider the following information:

1. Need to consider the version of the system needs to correspond to rpm
2. System architecture: such as 32-bit or 64-bit
3. Need to consider dependencies

rpm install

#ypm -ivh package name

-i install

-vh verbose human

-u upgrade

The website to find rpm packages: Rpmfind mirrorhttp://pkgs.org

1. Install via rpm

You can download it first

[[email protected] ~]# wget http://download-ib01.fedoraproject.org/pub/epel/7/x86_64/Packages/n/ntfs-3g-2017.3.23-11.el7.x86_64.rpm

#wget download command

#wget -o specify the storage path

#crul download address -o save as address

[[email protected] ~]# rpm -ivh ntfs-3g-2017.3.23-11.el7.x86_64.rpm #Install rpm package locally

2. Install the rpm package directly through the connection

[[email protected] ~]# rpm -ivh http://download-ib01.fedoraproject.org/pub/epel/7/x86_64/Packages/n/ntfs-3g-2017.3.23-11.el7.x86_64.rpm

Various queries

rpm -qa displays all downloaded installation packages

-q query

-l list

-f file

-a all

rpm -qa |grep software name to find out whether the software is installed

rpm -ql httpd query http installed files

rpm -qf /usr/share/httpd/noindex to query which package the file belongs to

rpm -qf /etc/passwd Query a certain file is generated by which software; only the installed software can be queried

Uninstall

rpm -e software name

-e erase

rpm tool management package summary

1. Hard to resolve package dependencies

2. If a file is not available, it is difficult to know which rpm package provides it

Second, yum way to manage files

#It can automatically resolve the rpm software dependencies. Although it is installed through yum, the final execution is rpm, that is to say, yum cannot be used without the rpm command.http hypertext transfer protocol Category: local yum and remote yum local yum: file:// remote yum: http:// hypertext transfer protocol ftp://

yum operations

After installing the environment, we have the official yum source that comes with centos, and we can also replace or make our own yum source

yum clean all clean yum cache

yum makecache caches package information to improve the speed of searching/installing software

yum repolist package address is listed and displayed after caching

yum provides rz

yum list

yum install software name -y

yum -y reinstall software name

yum erase software name

yum remove software name -y

yum -y remove``rpm -qa | grep httpd`` (back-ticks)

yum uninstalls all httpd-related packages found by rpm and uninstalls them

Replace network yum source --aliyun

wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.163.com/.help/CentOS7-Base-163.repo

wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo

#cd /etc/yum.repos.d (switch to yum.repos.d directory)

#mkdir back (make a backup)

#mv *.repo back

#wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.163.com/.help/CentOS7-Base-163.repo (download to CentOS-Base.repo *must be .repo otherwise invalid)

#curl -o specify the storage path

Install extension source --epel.repo

#wget -O /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-7.repo

#cd /etc/yum.repos.d