# CentOS
CentOS specific commands which differs from debian
# Iptables
iptables-save > /etc/sysconfig/iptables
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# OS Version
cat /etc/system-release
CentOS Linux release 7.6.1810 (Core)
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# Yum
yum install httpd
yum remove postgresql.x86_64
yum update postgresql.x86_64
yum search firefox
yum info samba-common.i686
yum groupinstall 'DNS Name Server'
yum repolist
yum check-update
yum list | less
yum list installed | less
yum provides /etc/sysconfig/nf
yum grouplist
yum list installed | grep unzip
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to be updated...