Linux Common commands

Open Access Port command

See if the port is open first

/etc/init.d/iptables status

/sbin/iptables-i input-p TCP--dport xxxx-j ACCEPT #开启xxxx端口

/etc/rc.d/init.d/iptables Save #保存配置

/etc/rc.d/init.d/iptables Restart #重启服务

View information such as the maximum number of handles under a process processCd/proc/pid/limits (Other information) to view the number of open handles initiated by a processLsof-p PID | Wc-l querying files that are larger than the file sizeFind/-type f-size +300m/g

Ls-ltr sorting files in the current folder in chronological order (-R reverse order)

Find files (including subfolders) that have changed in the most recent day within the current folder

Find. -type f-mtime-1

Files changed 1 days ago:

Find. -type F-mtime +1

Files with status changes in the last 10 minutes

Find. -type f-cmin-10

DF-HL Viewing disk usage

Linux Common commands