Code研究者

在linux系统上，使用yum命令，发现命令不可用，提示：Loaded plugins: fastestmirrorLoading mirror speeds from cached hostfileCould not retrieve mirrorlist http://mirrorlist.centos.org/?release=6&arch=x86_64&repo=os er...

在部署测试环境时，pip install XXX，出现了如下问题：“File “/usr/lib/python2.7/site-packages/pkg_resources.py”, line 738, in comparisonraise SyntaxError(repr(cop)+” operator not allowed in environment markers”)Syntax...

1.安装yum install openvswitchdyum install bridge-utils 2.ovs的使用创建ovs-bridgeovs-vsctl add-br br-intovs-vsctl add-br br-tunovs-vsctl add-port br-int patch-int -- set Interface patch-in...

转载：https://blog.youkuaiyun.com/sunny05296/article/details/65987237Linux shell if 语法基本语法:if [ command ]; then符合该条件执行的语句fi2、扩展语法：if [ command ];then符合该条件执行的语句elif [ command ];then符合该条件执行的语...