Linux - Awk
prints every line
# awk '{print}' <file_name> or <path>
prints the lines that contains foo
# awk ' /foo/ {print}' /etc/passwdUse ':' as delimiter and prints 1.st and 4.rd fields
# awk -F: '{print $1, $4}' /etc/passwd
DB-Master
sudo yum install mysql-server -y sudo systemctl enable --now mysqld sudo systemctl status mysqld sudo mysql_secure_installation sudo firewall-cmd --permanent --add-port = 3306 / tcp sudo firewall-cmd --zone =public --add-port = 3306 / tcp --permanent sudo firewall-cmd --reload
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