2 篇文章带有标签 “sed”

今天登录阿里云安装应用出现 404

问题

yum install install httpd-tools -y

CentOS-8 - AppStream                                                                                                                                                                      9.6 kB/s | 2.3 kB     00:00    
Errors during downloading metadata for repository 'AppStream':
  - Status code: 404 for http://mirrors.cloud.aliyuncs.com/centos/8/AppStream/x86_64/os/repodata/repomd.xml (IP: 100.100.2.148)
错误：为 repo 'AppStream' 下载元数据失败 : Cannot download repomd.xml: Cannot download repodata/repomd.xml: All mirrors were tried

解决方案 cd /etc/yum.repos.d/ find . -name '.repo' -exec sed -i 's/mirrors.cloud.aliyuncs.com/mirrors.aliyun.com/g' {} + find . -name '.

字符串

分隔符号可以自由更换

$ echo "Hi, John." | sed 's/Hi/HI/g'
HI, John.
$ echo "Hi, John." | sed 's#Hi#HI#g'
HI, John.
$ echo "Hi, John." | sed 's-Hi-HI-g'
HI, John.

单引号' $ echo "'s', 'm', 'l', 'x'" | sed 's/'"'"'s'"'"', '"'"'m'"'"', '"'"'l'"'"', '"'"'x'"'"'/'"'"'s'"'"', '"&#39