没有太多可以说明的，直接看代码：
安装：yum-utils
[root@zabbix-server software]# yum list | grep --color yum-utils yum-utils.noarch 1.1.31-29.el7 @anaconda yum-utils.noarch 1.1.31-34.el7 base [root@zabbix-server software]# [root@zabbix-server software]# yum install -y yum-utils Loaded plugins: fastestmirror, langpacks Loading mirror speeds from cached hostfile * base: ftp.sjtu.edu.cn * epel: mirrors.ustc.edu.cn * extras: centos.ustc.edu.cn * updates: ftp.sjtu.edu.cn Resolving Dependencies --> Running transaction check ---> Package yum-utils.noarch 0:1.1.31-29.el7 will be updated ---> Package yum-utils.noarch 0:1.1.31-34.el7 will be an update --> Finished Dependency Resolution Dependencies Resolved ================================================================================================================ Package Arch Version Repository Size ================================================================================================================ Updating: yum-utils noarch 1.1.31-34.el7 base 113 k Transaction Summary ================================================================================================================ Upgrade 1 Package Total download size: 113 k Downloading packages: No Presto metadata available for base warning: /var/cache/yum/x86_64/7/base/packages/yum-utils-1.1.31-34.el7.noarch.rpm: Header V3 RSA/SHA256 Signature, key ID f4a80eb5: NOKEY Public key for yum-utils-1.1.31-34.el7.noarch.rpm is not installed yum-utils-1.1.31-34.el7.noarch.rpm | 113 kB 00:00:01 Retrieving key from file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7 Importing GPG key 0xF4A80EB5: Userid : "CentOS-7 Key (CentOS 7 Official Signing Key) " Fingerprint: 6341 ab27 53d7 8a78 a7c2 7bb1 24c6 a8a7 f4a8 0eb5 Package : centos-release-7-1.1503.el7.centos.2.8.x86_64 (@anaconda) From : /etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7 Running transaction check Running transaction test Transaction test succeeded Running transaction Updating : yum-utils-1.1.31-34.el7.noarch 1/2 Cleanup : yum-utils-1.1.31-29.el7.noarch 2/2 Verifying : yum-utils-1.1.31-34.el7.noarch 1/2 Verifying : yum-utils-1.1.31-29.el7.noarch 2/2 Updated: yum-utils.noarch 0:1.1.31-34.el7 Complete! [root@zabbix-server software]#
安装完成后，查看：
[root@zabbix-server software]# rpm -qa | grep yum yum-plugin-fastestmirror-1.1.31-29.el7.noarch yum-metadata-parser-1.1.4-10.el7.x86_64 PackageKit-yum-0.8.9-11.el7.centos.x86_64 yum-utils-1.1.31-34.el7.noarch yum-langpacks-0.4.2-3.el7.noarch yum-3.4.3-125.el7.centos.noarch [root@zabbix-server software]# [root@zabbix-server software]# rpm -ql yum-utils /etc/bash_completion.d /etc/bash_completion.d/yum-utils.bash /usr/bin/debuginfo-install /usr/bin/find-repos-of-install /usr/bin/needs-restarting /usr/bin/package-cleanup /usr/bin/repo-graph /usr/bin/repo-rss /usr/bin/repoclosure /usr/bin/repodiff /usr/bin/repomanage /usr/bin/repoquery /usr/bin/reposync /usr/bin/repotrack /usr/bin/show-changed-rco /usr/bin/show-installed /usr/bin/verifytree /usr/bin/yum-builddep /usr/bin/yum-config-manager /usr/bin/yum-debug-dump /usr/bin/yum-debug-restore /usr/bin/yum-groups-manager /usr/bin/yumdownloader /usr/lib/python2.7/site-packages/yumutils /usr/lib/python2.7/site-packages/yumutils/__init__.py /usr/lib/python2.7/site-packages/yumutils/__init__.pyc /usr/lib/python2.7/site-packages/yumutils/__init__.pyo /usr/lib/python2.7/site-packages/yumutils/i18n.py /usr/lib/python2.7/site-packages/yumutils/i18n.pyc /usr/lib/python2.7/site-packages/yumutils/i18n.pyo /usr/sbin/yum-complete-transaction /usr/sbin/yumdb /usr/share/doc/yum-utils-1.1.31 /usr/share/doc/yum-utils-1.1.31/COPYING /usr/share/doc/yum-utils-1.1.31/README /usr/share/doc/yum-utils-1.1.31/yum-util-cli-template /usr/share/locale/da/LC_MESSAGES/yum-utils.mo /usr/share/man/man1/debuginfo-install.1.gz /usr/share/man/man1/find-repos-of-install.1.gz /usr/share/man/man1/needs-restarting.1.gz /usr/share/man/man1/package-cleanup.1.gz /usr/share/man/man1/repo-graph.1.gz /usr/share/man/man1/repo-rss.1.gz /usr/share/man/man1/repoclosure.1.gz /usr/share/man/man1/repodiff.1.gz /usr/share/man/man1/repomanage.1.gz /usr/share/man/man1/repoquery.1.gz /usr/share/man/man1/reposync.1.gz /usr/share/man/man1/repotrack.1.gz /usr/share/man/man1/show-changed-rco.1.gz /usr/share/man/man1/show-installed.1.gz /usr/share/man/man1/verifytree.1.gz /usr/share/man/man1/yum-builddep.1.gz /usr/share/man/man1/yum-config-manager.1.gz /usr/share/man/man1/yum-debug-dump.1.gz /usr/share/man/man1/yum-debug-restore.1.gz /usr/share/man/man1/yum-groups-manager.1.gz /usr/share/man/man1/yum-utils.1.gz /usr/share/man/man1/yumdownloader.1.gz /usr/share/man/man8/yum-complete-transaction.8.gz /usr/share/man/man8/yumdb.8.gz [root@zabbix-server software]# [root@zabbix-server software]# rpm -ql yum-utils | grep --color "/usr/bin" /usr/bin/debuginfo-install /usr/bin/find-repos-of-install /usr/bin/needs-restarting /usr/bin/package-cleanup /usr/bin/repo-graph /usr/bin/repo-rss /usr/bin/repoclosure /usr/bin/repodiff /usr/bin/repomanage /usr/bin/repoquery /usr/bin/reposync /usr/bin/repotrack /usr/bin/show-changed-rco /usr/bin/show-installed /usr/bin/verifytree /usr/bin/yum-builddep /usr/bin/yum-config-manager /usr/bin/yum-debug-dump /usr/bin/yum-debug-restore /usr/bin/yum-groups-manager /usr/bin/yumdownloader [root@zabbix-server software]#
下载，不安装：
[root@zabbix-server software]# yum list | grep --color "zabbix" zabbix-release.noarch 3.2-1.el7 installed python-pyzabbix.noarch 0.7.3-2.el7 epel uwsgi-stats-pusher-zabbix.x86_64 2.0.13.1-2.el7 epel zabbix-agent.x86_64 3.2.0-1.el7 zabbix zabbix-get.x86_64 3.2.0-1.el7 zabbix zabbix-java-gateway.x86_64 3.2.0-1.el7 zabbix zabbix-proxy-mysql.x86_64 3.2.0-1.el7 zabbix zabbix-proxy-pgsql.x86_64 3.2.0-1.el7 zabbix zabbix-proxy-sqlite3.x86_64 3.2.0-1.el7 zabbix zabbix-sender.x86_64 3.2.0-1.el7 zabbix zabbix-server-mysql.x86_64 3.2.0-1.el7 zabbix zabbix-server-pgsql.x86_64 3.2.0-1.el7 zabbix zabbix-web.noarch 3.2.0-1.el7 zabbix zabbix-web-japanese.noarch 3.2.0-1.el7 zabbix zabbix-web-mysql.noarch 3.2.0-1.el7 zabbix zabbix-web-pgsql.noarch 3.2.0-1.el7 zabbix zabbix20.x86_64 2.0.16-1.el7 epel zabbix20-agent.x86_64 2.0.16-1.el7 epel zabbix20-proxy.noarch 2.0.16-1.el7 epel zabbix20-proxy-mysql.x86_64 2.0.16-1.el7 epel zabbix20-proxy-pgsql.x86_64 2.0.16-1.el7 epel zabbix20-proxy-sqlite3.x86_64 2.0.16-1.el7 epel zabbix20-server.noarch 2.0.16-1.el7 epel zabbix20-server-mysql.x86_64 2.0.16-1.el7 epel zabbix20-server-pgsql.x86_64 2.0.16-1.el7 epel zabbix20-web.noarch 2.0.16-1.el7 epel zabbix20-web-mysql.noarch 2.0.16-1.el7 epel zabbix20-web-pgsql.noarch 2.0.16-1.el7 epel zabbix22.x86_64 2.2.14-1.el7 epel zabbix22-agent.x86_64 2.2.14-1.el7 epel zabbix22-dbfiles-mysql.noarch 2.2.14-1.el7 epel zabbix22-dbfiles-pgsql.noarch 2.2.14-1.el7 epel zabbix22-dbfiles-sqlite3.noarch 2.2.14-1.el7 epel zabbix22-proxy.noarch 2.2.14-1.el7 epel zabbix22-proxy-mysql.x86_64 2.2.14-1.el7 epel zabbix22-proxy-pgsql.x86_64 2.2.14-1.el7 epel zabbix22-proxy-sqlite3.x86_64 2.2.14-1.el7 epel zabbix22-server.noarch 2.2.14-1.el7 epel zabbix22-server-mysql.x86_64 2.2.14-1.el7 epel zabbix22-server-pgsql.x86_64 2.2.14-1.el7 epel zabbix22-web.noarch 2.2.14-1.el7 epel zabbix22-web-mysql.noarch 2.2.14-1.el7 epel zabbix22-web-pgsql.noarch 2.2.14-1.el7 epel [root@zabbix-server software]# [root@zabbix-server software]# rpm -qa | grep --color zabbix zabbix-release-3.2-1.el7.noarch [root@zabbix-server software]# [root@zabbix-server software]# yumdownloader zabbix-sender Loaded plugins: fastestmirror, langpacks Loading mirror speeds from cached hostfile * base: ftp.sjtu.edu.cn * epel: mirrors.ustc.edu.cn * extras: centos.ustc.edu.cn * updates: ftp.sjtu.edu.cn warning: /software/zabbix-sender-3.2.0-1.el7.x86_64.rpm: Header V4 RSA/SHA512 Signature, key ID a14fe591: NOKEY Public key for zabbix-sender-3.2.0-1.el7.x86_64.rpm is not installed zabbix-sender-3.2.0-1.el7.x86_64.rpm | 242 kB 00:00:03 [root@zabbix-server software]# [root@zabbix-server software]# ls -ltr * -rw-r--r-- 1 root root 248164 Sep 13 16:20 zabbix-sender-3.2.0-1.el7.x86_64.rpm -rw-r--r-- 1 root root 13392 Sep 14 05:00 zabbix-release-3.2-1.el7.noarch.rpm [root@zabbix-server software]# [root@zabbix-server software]# rpm -qa | grep --color zabbix zabbix-release-3.2-1.el7.noarch [root@zabbix-server software]#
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Done。