rpm -ivh command to install software
yum install it, you need the Internet to download the installation package image abroad, will slow
Fortunately, the country now has a mirror image of the installation package
There are at cat /etc/yum.repos.d/ directory
mirroring the address provided
yum install tree telnet dos2unix sysstat lrzsz -y
these commands more important
tree to view the directory structure of the
telnet test of
dos2unix transcoding
sysstat performance monitoring
lrzsz upload and download with
Update all command
yum upgrade
or
yum undate
yum grouplist see which packages are installed