Linux基础学习（四）

自建yum仓库，分别为网络源和本地源

1.本地源

点击查看代码

root@ct7:~# yum install autofs
root@ct7:~# systemctl enable --now autofs
root@ct7:~# systemctl status autofs.service
root@ct7:~# mount /dev/cdrom /misc/
root@ct7:~# vim /etc/yum.repos.d/centos7.repo
[CentOS7]
name=CentOS 7
baseurl=file:///misc/
gpgcheck=1
enabled=1

root@ct7:~# yum clear all
root@ct7:~# yum makecache

2.网络源

点击查看代码

root@node3:~# cat /etc/apt/sources.list
deb http://repo.huaweicloud.com/ubuntu bionic main restricted
deb http://repo.huaweicloud.com/ubuntu bionic-updates main restricted
deb http://repo.huaweicloud.com/ubuntu bionic universe
deb http://repo.huaweicloud.com/ubuntu bionic-updates universe
deb http://repo.huaweicloud.com/ubuntu bionic multiverse
deb http://repo.huaweicloud.com/ubuntu bionic-updates multiverse
deb http://repo.huaweicloud.com/ubuntu bionic-backports main restricted universe multiverse
deb http://repo.huaweicloud.com/ubuntu bionic-security main restricted
deb http://repo.huaweicloud.com/ubuntu bionic-security universe
deb http://repo.huaweicloud.com/ubuntu bionic-security multiverse

编译安装http2.4，实现可以正常访问，并将编译步骤和结果提交。

点击查看代码

[root@ct7 httpd-2.4.52]# cd /data/
[root@ct7 httpd-2.4.52]# wget -r https://dlcdn.apache.org//httpd/httpd-2.4.52.tar.bz2
[root@ct7 httpd-2.4.52]# tar xvf httpd-2.4.52.tar.bz2 
[root@ct7 httpd-2.4.52]# cd httpd-2.4.52
[root@ct7 httpd-2.4.52]# yum install apr-devel -y
[root@ct7 httpd-2.4.52]# yum install -y apr-util-devel
[root@ct7 httpd-2.4.52]# yum install openssl-devel -y
[root@ct7 httpd-2.4.52]# ./configure --prefix=/opt/httpd --sysconfdir=/etc/httpd --enable-ssl
[root@ct7 httpd-2.4.52]# make -j 2
[root@ct7 httpd-2.4.52]# make install
[root@ct7 httpd-2.4.52]# /opt/httpd/bin/apachectl -k start

利用sed 取出ifconfig命令中本机的IPv4地址

ip addr show eth0 | sed -nr "3s/[^0-9]+([0-9.]+).*/\1/p"

删除/etc/fstab文件中所有以#开头，后面至少跟一个空白字符的行的行首的#和空白字符

[root@ct7 opt]# cat fstab | sed -r 's/^#[[:space:]]*//'

处理/etc/fstab路径,使用sed命令取出其目录名和基名

点击查看代码

[root@ct7 ~]# echo /etc/fstab | sed -nr 's/^(.*\/).*/\1/p'
/etc/
[root@ct7 ~]# echo /etc/fstab | sed -nr 's/^(.*\/)//p'
fstab

列出ubuntu软件管理工具apt的一些用法(自由总结)

1. 安装软件包
   apt install packagename
2. 在软件库里搜索软件包
   apt search packagename
3. 显示软件包信息
   apt show packagename
4. 更新软件包
   apt update
5. 删除软件包
   apt remove
6. 自动删除所有未使用的软件包
   apt aoturemove