一、自建yum倉庫，分別為網(wǎng)絡(luò)源和本地源
#1?網(wǎng)絡(luò)源
#1.1備份默認的yum配置到其他路徑
[root@CentOS8?~]#?cd?/etc/yum.repos.d
[root@CentOS8?yum.repos.d]#?ls
CentOS-AppStream.repo???CentOS-CR.repo?????????CentOS-fasttrack.repo??CentOS-PowerTools.repo
CentOS-Base.repo????????CentOS-Debuginfo.repo??CentOS-HA.repo?????????CentOS-Sources.repo
CentOS-centosplus.repo??CentOS-Extras.repo?????CentOS-Media.repo??????CentOS-Vault.repo
[root@CentOS8?yum.repos.d]#?mkdir?bk;mv?*.repo?bk
#1.2?配置yum網(wǎng)絡(luò)源倉庫
[root@CentOS8?yum.repos.d]#?vi?BaseOS.repo
[BaseOS]
name=BaseOS
baseurl=
gpgcheck=1
enabled=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-centosofficial
[root@CentOS8?yum.repos.d]#?vi?AppStream.repo
[AppStream]
name=AppStream
baseurl=
gpgcheck=1
enabled=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-centosofficial
#1.3?安裝軟件卑雁，驗證yum
[root@CentOS8?yum.repos.d]#?yum?repolist
repo?idrepo?name???????????????????????????????????????????status
AppStream???????????????????????????????????????????AppStream???????????????????????????????????????????5,059
BaseOS??????????????????????????????????????????????BaseOS??????????????????????????????????????????????1,695
[root@CentOS8?yum.repos.d]#?yum?provides?httpd
[root@CentOS8?yum.repos.d]#?yum?-y?install?httpd
[root@CentOS8?yum.repos.d]#?rpm?-qe?httpd
httpd-2.4.37-30.module_el8.3.0+561+97fdbbcc.x86_64
#2?本地源（http方式）
#2.1?服務(wù)端配置
[root@repo-server?~]#systemctl?stop?firewalld.service?
[root@repo-server?~]#systemctl?status?firewalld.service
[root@repo-server?~]#yum?-y?install?httpd?--安裝httpd服務(wù)
[root@repo-server?~]#systemctl?enable?--now?httpd;systemctl?status?httpd
[root@repo-server?~]#mkdir?-pv?/var/www/html/centos/8
mkdir:?created?directory?'/var/www/html/centos'
mkdir:?created?directory?'/var/www/html/centos/8'
[root@repo-server?~]#mount?/dev/sr0?/var/www/html/centos/8
#2.2?客戶端配置
[root@repo-client?~]#?cd?/etc/yum.repos.d/
[root@repo-client?yum.repos.d]#?mkdir?bk;mv?*.repo?bk
[root@CentOS8?yum.repos.d]#?vi?BaseOS.repo
[BaseOS]
name=BaseOS
baseurl=file:///var/www/html/centos/8/BaseOS
gpgcheck=1
enabled=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-centosofficial
[root@CentOS8?yum.repos.d]#?vi?AppStream.repo
[AppStream]
name=AppStream
baseurl=file:///var/www/html/centos/8/AppStream
gpgcheck=1
enabled=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-centosofficial
[root@repo-client?yum.repos.d]#?yum?repolist
二、編譯安裝http2.4骑丸，實現(xiàn)可以正常訪問霎冯，并將編譯步驟和結(jié)果提交。
[root@CentOS8?httpd-2.4.46]#rpm?-q?httpd
package?httpd?is?not?installed
[root@CentOS8?~]#wget?-P?/usr/local/src?
[root@CentOS8?~]#cd?/usr/local/src/
[root@CentOS8?src]#ls
httpd-2.4.46.tar.bz2
[root@CentOS8?src]#tar?xvf?httpd-2.4.46.tar.bz2
[root@CentOS8?src]#cd?httpd-2.4.46/
[root@CentOS8?httpd-2.4.46]#cat?README
[root@CentOS8?httpd-2.4.46]#cat?INSTALL
?????$?./configure--prefix=PREFIX
?????$?make
?????$?makeinstall
?????$?PREFIX/bin/apachectlstart
[root@CentOS8?httpd-2.4.46]#yum?-y?install?gcc?make?autoconf?apr-devel?apr-util-devel?pcre-devel?openssl-devel?redhat-rpm-config
[root@CentOS8?httpd-2.4.46]#make?-j?4?&&?make?install
[root@CentOS8?httpd-2.4.46]#echo?$?
[root@CentOS8?~]#/apps/httpd24/bin/apachectl?start
[root@CentOS8?bin]#systemctl?stop?firewalld.service
三盹牧、利用 sed 取出ifconfig命令中本機的IPv4地址
[root@CentOS8?~]#ifconfig?ens33?|?sed?-rn?'2s/^[^0-9]+([0-9.]+)?.*$/\1/p'
10.0.0.205
四俩垃、刪除/etc/fstab文件中所有以#開頭，后面至少跟一個空白字符的行的行首的#和空白字符
刪除前：
[root@CentOS8?~]#cat?/etc/fstab
#
#?/etc/fstab
#?Created?by?anaconda?on?Sun?Feb?28?12:11:21?2021
#
#?Accessible?filesystems,?by?reference,?are?maintained?under?'/dev/disk/'.
#?See?man?pages?fstab(5),?findfs(8),?mount(8)?and/or?blkid(8)?for?more?info.
#
#?After?editing?this?file,?run?'systemctl?daemon-reload'?to?update?systemd
#?units?generated?from?this?file.
#
UUID=19cfb9c8-bd59-4c52-8403-70527758bf86?/???????????????????????xfs?????defaults????????0?0
UUID=ccb9e34d-a43a-4276-a697-d8ce684cd699?/bootext4????defaults????????1?2
UUID=759de453-b2ff-4553-8e01-e830d2f2468f?/dataxfs?????defaults????????0?0
UUID=84faeb9d-3694-40bb-b0c9-f55047d09799?swap????????????????????swap????defaults????????0?0
刪除后：
[root@CentOS8?data]#sed?-Ei.bak?/^#./s/^#.//?fstab;more?fstab?
#
/etc/fstab
Created?by?anaconda?on?Sun?Feb?28?12:11:21?2021
#
Accessible?filesystems,?by?reference,?are?maintained?under?'/dev/disk/'.
See?manpages?fstab(5),?findfs(8),?mount(8)?and/orblkid(8)?formoreinfo.
#
After?editing?this?file,?run?'systemctl?daemon-reload'to?update?systemd
unitsgenerated?from?this?file.
#
UUID=19cfb9c8-bd59-4c52-8403-70527758bf86?/???????????????????????xfs?????defaults????????0?0
UUID=ccb9e34d-a43a-4276-a697-d8ce684cd699?/bootext4????defaults????????1?2
UUID=759de453-b2ff-4553-8e01-e830d2f2468f?/dataxfs?????defaults????????0?0
UUID=84faeb9d-3694-40bb-b0c9-f55047d09799?swap????????????????????swap????defaults????????0?0
五汰寓、處理/etc/fstab路徑,使用sed命令取出其目錄名和基名
[root@CentOS8?~]#echo?"/etc/fstab"?|sed?-r?'s#(^/.*/)([^/]+/?)#\1#'
/etc/
[root@CentOS8?~]#echo?"/etc/fstab"?|?sed?-rn?'s#(.*)/([^/]+)/?#\2#p'
fstab
