yum-3.2.29 / yum-utils-1.1.30

<package>
  n=name, e=epoch, v=version, 
  r=release, a=arch
    n, n.a, n-v, n-v-r, n-v-r.a
    n-e:v-r.a, e:n-v-r.a

yum install <package>
yum install postfix.i686 = specify arch (note protected_multilib).
yum install 'config(postfix) >= 2.7.0' = specific provide
yum install MTA = shared provides, installs a provider
yum install @books = Install Group
yum install '/usr/kerberos/sbin/*' = Install all packages with matching filename

yum remove
 Same args. as install, but removes all
yum remove kernel = removes all, but currently running kernel
yum remove MTA = shared provides, removes all providers of MTA
yum remove MTA -- -postfix = remove all, but don't remove postfix

yum upgrade     <package>

yum downgrade   <package>
yum reinstall   <package>
yum distro-sync <package>

yum check-update

yum list <package>
yum list installed <package>

yum search <keyword>...

yum version nogroups

yum history [list]  [package]...
yum history summary [package]...
yum history info    [package]...
yum history pkgs    <package>...
yum history undo    <transaction>
yum history redo    <transaction>

yum repolist [-v]

echo | yum update blah
yum load-ts /tmp/yum_save_tx-2011-01-17-01-00ToIFXK.yumtx

yum clean expire-cache = Force network check, but cache not deleted

yum check = Run automatically on errors.

yum --releasever=13 --showduplicates list yum

yum --enablerepo/--disablerepo

yum --setopt

 = yum-utils =

repoquery --releasever=13 yum
repoquery --releasever=13 --list yum
repoquery --installed yum

show-installed
yumdownloader

yum-config-manager
yum-groups-manager

yum-builddep

yumdb info yum = http://yum.baseurl.org/wiki/YumDB

yum-debug-dump
yum-debug-restore

 = plugins/security =

yum updateinfo [summary]
yum updateinfo list all
yum updateinfo list security all 
yum updateinfo info all FEDORA-2010-14355

yum --security update-minimal

yum --security upgrade
yum --bz=1234  upgrade

yum --security check-update

yum --sec-severity=critical check-update
yum --sec-severity=critical upgrade


 = plugins/aliases =

yum in = yum install
yum rm = yum remove
yum ls = yum list
yum h  = yum history
etc.
yum alias vers list yum
yum vers

 = plugins/versionlock =

yum versionlock [list]
yum versionlock add yum
yum versionlock exclude yum-utils
yum versionlock delete yum\*
yum versionlock clear

 = plugins/tmprepo =

yum --tmprepo=/dir/of/rpms update
yum --tmprepo=http://example.com/myrepo.repo check-update
yum --tmprepo=http://example.com/myrepo/repodata/repomd.xml check-update