linux技巧
2018-04-12 本文已影响19人
heliping_peter
1.echo
cat >> a.txt <<-EOF
[192.168.124.106](192.168.124.106) controller
[192.168.124.107](192.168.124.107) compute
[192.168.124.108](192.168.124.108) cinder
EOF
2.centos换阿里源
mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup
curl -o /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
3.shell
- 递增字符串
for i in `seq 100 150`;do echo abc-$i; done
4.查看当前文件夹大小
[root@qa1v29]:/opt# du -sh *
39M ZenTaoPMS.10.3.stable.zbox_64.tar.gz
65M cni
279M zbox
