YUM (Yellowdog Updater, Modified) , Red Hat, CentOS Linux, RPM Package Manager. Yum , , , Linux-.
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$ yum update
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gpg
Linux RPM GPG . yum "Package NameOfPackage.rpm is not signed .. install failed!", RPM -nogpgcheck
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$ yum update --nogpgcheck
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$ cd /etc/yum.repos.d

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$ vi MyRepo.repo
repo- , :
[MyRepo] name=My Local Repo baseurl=file:///root/rpms enabled=1 gpgcheck=0
repo "baseurl", file:// , http:// ftp://.
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$ chmod 644 MyRepo.repo
. , yum update
, yum :
$ yum clean all
Yum , :
$ yum updateinfo list security

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$ yum update name-of-package
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$ yum check-update
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yum update, - , -exclude.
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$ yum update --exclude=kernel*
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$ yum update -x 'kernel*'
-exclude.
$ yum update --exclude=kernel* --exclude=httpd
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, yum history.
$ yum history

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$ yum history

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$ yum history undo 7

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Yum
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$ package-cleanup --dupes
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$ yum clean all

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yum , -skip-broken yum update
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$ yum update --skip-broken
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$ yum update
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$ yum updateinfo
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$ yum updateinfo security
yum check update yum list update
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$ yum list updates
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$ yum check-update
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, yum . , , . yum-cron.
yum-cron yum:
$ yum install yum-cron
yum-cron
:
$ systemctl enable yum-cron.service $ systemctl start yum-cron.service
yum-cron vi :
$ vi /etc/yum/yum-cron.conf
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apply_updates = no #don’t apply updates automatically email_from = root@localhost email_to = admin@example.com email_host = localhost
yum update
yum 80. , , http. , yum 80.
Yum update upgrade
yum update, : yum upgrade.
$ yum upgrade
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