تنظیم میرور در سیستم عامل CentOS

mkdir -p /etc/yum.repos.d/backup && \
for f in /etc/yum.repos.d/*.repo; do cp "$f" /etc/yum.repos.d/backup/ \
&& sed -i "s/enabled=1/enabled=0/g" "$f"; done && \
cat > /etc/yum.repos.d/liara-mirror.repo <<'EOF'
[liara-baseos]
name=Liara CentOS BaseOS
baseurl=https://linux-mirror.liara.ir/repository/centos/$releasever/BaseOS/$basearch/os/
enabled=1
gpgcheck=0

[liara-appstream]
name=Liara CentOS AppStream
baseurl=https://linux-mirror.liara.ir/repository/centos/$releasever/AppStream/$basearch/os/
enabled=1
gpgcheck=0

[liara-extras]
name=Liara CentOS Extras
baseurl=https://linux-mirror.liara.ir/repository/centos/$releasever/extras/$basearch/os/
enabled=1
gpgcheck=0
EOF

yum update