linux上查看磁盘分区，网络配置，端口使用情况
查看磁盘以及分区情况 df
[centos@www ~]$ df
文件系统 1K-块 已用 可用 已用% 挂载点
/dev/mapper/cl-root 52403200 49224688 3178512 94% /
devtmpfs 8079576 0 8079576 0% /dev
tmpfs 8097024 0 8097024 0% /dev/shm
tmpfs 8097024 26256 8070768 1% /run
tmpfs 8097024 0 8097024 0% /sys/fs/cgroup
/dev/sda2 1038336 276856 761480 27% /boot
/dev/sda1 204580 11296 193284 6% /boot/efi
/dev/mapper/cl-home 182228036 25157564 157070472 14% /home
tmpfs 1619408 28 1619380 1% /run/user/1000
tmpfs 1619408 0 1619408 0% /run/user/0
[centos@www ~]$ df -h
文件系统 容量 已用 可用 已用% 挂载点
/dev/mapper/cl-root 50G 47G 3.1G 94% /
devtmpfs 7.8G 0 7.8G 0% /dev
tmpfs 7.8G 0 7.8G 0% /dev/shm
tmpfs 7.8G 26M 7.7G 1% /run
tmpfs 7.8G 0 7.8G 0% /sys/fs/cgroup
/dev/sda2 1014M 271M 744M 27% /boot
/dev/sda1 200M 12M 189M 6% /boot/efi
/dev/mapper/cl-home 174G 24G 150G 14% /home
tmpfs 1.6G 28K 1.6G 1% /run/user/1000
tmpfs 1.6G 0 1.6G 0% /run/user/0
[centos@www ~]$ df -m
文件系统 1M-块 已用 可用 已用% 挂载点
/dev/mapper/cl-root 51175 48071 3105 94% /
devtmpfs 7891 0 7891 0% /dev
tmpfs 7908 0 7908 0% /dev/shm
tmpfs 7908 26 7882 1% /run
tmpfs 7908 0 7908 0% /sys/fs/cgroup
/dev/sda2 1014 271 744 27% /boot
/dev/sda1 200 12 189 6% /boot/efi
/dev/mapper/cl-home 177958 24568 153390 14% /home
tmpfs 1582 1 1582 1% /run/user/1000
tmpfs 1582 0 1582 0% /run/user/0
[centos@www ~]$
通常使用 df -h显示数据更便于人类阅读
查看网络情况
[centos@www ~]$ ifconfig
enp3s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.0.100 netmask 255.255.255.0 broadcast 192.168.0.255
inet6 fe80::d306:b52:af92:6dbd prefixlen 64 scopeid 0x20<link>
ether 44:33:4c:07:ed:b6 txqueuelen 1000 (Ethernet)
RX packets 5798046 bytes 457732215 (436.5 MiB)
RX errors 0 dropped 90 overruns 0 frame 0
TX packets 602615 bytes 430149624 (410.2 MiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
enp4s0: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
ether e0:3f:49:e8:b6:e9 txqueuelen 1000 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10<host>
loop txqueuelen 1000 (Local Loopback)
RX packets 394512 bytes 279152634 (266.2 MiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 394512 bytes 279152634 (266.2 MiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
virbr0: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
inet 192.168.122.1 netmask 255.255.255.0 broadcast 192.168.122.255
ether 52:54:00:66:b7:a7 txqueuelen 1000 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
[centos@www ~]$
查看端口使用情况
#1.方法一
lsof -i:端口号
#2.方法二
netstat -apn|grep 端口号[centos@www ~]$ lsof -i:3306
[centos@www ~]$ lsof -i:80
[centos@www ~]$ lsof -i:6379
[centos@www ~]$ netstat -apn|grep 3306
(Not all processes could be identified, non-owned process info
will not be shown, you would have to be root to see it all.)
tcp 0 0 127.0.0.1:51802 127.0.0.1:3306 TIME_WAIT -
tcp 0 0 127.0.0.1:51798 127.0.0.1:3306 TIME_WAIT -
tcp 0 0 127.0.0.1:51816 127.0.0.1:3306 TIME_WAIT -
tcp 0 0 127.0.0.1:51774 127.0.0.1:3306 TIME_WAIT -
tcp 0 0 127.0.0.1:51788 127.0.0.1:3306 TIME_WAIT -
tcp 0 0 127.0.0.1:51784 127.0.0.1:3306 TIME_WAIT -
tcp 0 0 127.0.0.1:51812 127.0.0.1:3306 TIME_WAIT -
tcp 0 0 127.0.0.1:51826 127.0.0.1:3306 TIME_WAIT -
tcp6 0 0 :::3306 :::* LISTEN -
[centos@www ~]$ netstat -apn|grep 80
(Not all processes could be identified, non-owned process info
will not be shown, you would have to be root to see it all.)
tcp 0 0 0.0.0.0:80 0.0.0.0:* LISTEN -
tcp 0 0 127.0.0.1:51802 127.0.0.1:3306 TIME_WAIT -
tcp 0 0 192.168.0.100:80 192.168.0.153:51173 ESTABLISHED -
tcp 0 0 192.168.0.100:50044 192.168.0.100:80 TIME_WAIT -
tcp 0 0 192.168.0.100:50030 192.168.0.100:80 TIME_WAIT -
tcp 0 0 192.168.0.100:50016 192.168.0.100:80 TIME_WAIT -
tcp 0 0 192.168.0.100:80 192.168.0.153:51130 ESTABLISHED -
tcp 0 0 192.168.0.100:50002 192.168.0.100:80 TIME_WAIT -
unix 2 [ ACC ] STREAM LISTENING 25580 - private/virtual
unix 2 [ ACC ] STREAM LISTENING 30014 1804/dbus-daemon @/tmp/dbus-DKUwjjHPN7
unix 3 [ ] STREAM CONNECTED 28054 2117/gnome-shell-ca
unix 3 [ ] STREAM CONNECTED 31767 1804/dbus-daemon @/tmp/dbus-DKUwjjHPN7
unix 3 [ ] STREAM CONNECTED 30975 1804/dbus-daemon @/tmp/dbus-DKUwjjHPN7
unix 3 [ ] STREAM CONNECTED 27162 1804/dbus-daemon @/tmp/dbus-DKUwjjHPN7
unix 3 [ ] STREAM CONNECTED 28061 2171/mission-contro
unix 3 [ ] STREAM CONNECTED 22408 1804/dbus-daemon @/tmp/dbus-DKUwjjHPN7
unix 3 [ ] STREAM CONNECTED 27327 1804/dbus-daemon @/tmp/dbus-DKUwjjHPN7
unix 3 [ ] STREAM CONNECTED 34062 1804/dbus-daemon @/tmp/dbus-DKUwjjHPN7
unix 3 [ ] STREAM CONNECTED 28426 1804/dbus-daemon @/tmp/dbus-DKUwjjHPN7
unix 3 [ ] STREAM CONNECTED 24433 1804/dbus-daemon @/tmp/dbus-DKUwjjHPN7
unix 3 [ ] STREAM CONNECTED 21482 1802/dbus-launch
unix 3 [ ] STREAM CONNECTED 28058 2164/goa-identity-s
unix 3 [ ] STREAM CONNECTED 27005 1804/dbus-daemon @/tmp/dbus-DKUwjjHPN7
unix 3 [ ] STREAM CONNECTED 22031 1802/dbus-launch
unix 3 [ ] STREAM CONNECTED 11803 - /run/systemd/journal/stdout
unix 3 [ ] STREAM CONNECTED 22180 - /run/dbus/system_bus_socket
unix 3 [ ] STREAM CONNECTED 28056 2154/goa-daemon
unix 3 [ ] STREAM CONNECTED 22111 1804/dbus-daemon @/tmp/dbus-DKUwjjHPN7
unix 3 [ ] STREAM CONNECTED 31893 1804/dbus-daemon @/tmp/dbus-DKUwjjHPN7
unix 3 [ ] STREAM CONNECTED 28055 2154/goa-daemon
unix 3 [ ] STREAM CONNECTED 22256 1804/dbus-daemon @/tmp/dbus-DKUwjjHPN7
unix 3 [ ] STREAM CONNECTED 22173 1804/dbus-daemon @/tmp/dbus-DKUwjjHPN7
unix 3 [ ] STREAM CONNECTED 27391 1804/dbus-daemon @/tmp/dbus-DKUwjjHPN7
unix 3 [ ] STREAM CONNECTED 37921 1804/dbus-daemon @/tmp/dbus-DKUwjjHPN7
unix 3 [ ] STREAM CONNECTED 28029 2101/ibus-x11
unix 3 [ ] STREAM CONNECTED 36027 1804/dbus-daemon @/tmp/dbus-DKUwjjHPN7
unix 3 [ ] STREAM CONNECTED 36984 1804/dbus-daemon @/tmp/dbus-DKUwjjHPN7
unix 3 [ ] STREAM CONNECTED 22103 1804/dbus-daemon @/tmp/dbus-DKUwjjHPN7
unix 3 [ ] STREAM CONNECTED 27325 1804/dbus-daemon @/tmp/dbus-DKUwjjHPN7
unix 3 [ ] STREAM CONNECTED 27318 1804/dbus-daemon @/tmp/dbus-DKUwjjHPN7
unix 3 [ ] STREAM CONNECTED 28062 2171/mission-contro
unix 3 [ ] STREAM CONNECTED 28429 1804/dbus-daemon @/tmp/dbus-DKUwjjHPN7
unix 3 [ ] STREAM CONNECTED 22104 1804/dbus-daemon @/tmp/dbus-DKUwjjHPN7
unix 3 [ ] STREAM CONNECTED 22113 1804/dbus-daemon @/tmp/dbus-DKUwjjHPN7
unix 3 [ ] DGRAM 9880 -
unix 3 [ ] STREAM CONNECTED 36116 1804/dbus-daemon @/tmp/dbus-DKUwjjHPN7
unix 3 [ ] STREAM CONNECTED 22255 1804/dbus-daemon @/tmp/dbus-DKUwjjHPN7
unix 3 [ ] STREAM CONNECTED 22250 1804/dbus-daemon @/tmp/dbus-DKUwjjHPN7
unix 3 [ ] STREAM CONNECTED 27410 1804/dbus-daemon @/tmp/dbus-DKUwjjHPN7
unix 3 [ ] STREAM CONNECTED 30982 1804/dbus-daemon @/tmp/dbus-DKUwjjHPN7
unix 3 [ ] STREAM CONNECTED 27300 1804/dbus-daemon @/tmp/dbus-DKUwjjHPN7
unix 3 [ ] STREAM CONNECTED 22053 1804/dbus-daemon @/tmp/dbus-DKUwjjHPN7
unix 3 [ ] STREAM CONNECTED 22118 1804/dbus-daemon @/tmp/dbus-DKUwjjHPN7
unix 3 [ ] STREAM CONNECTED 29348 1804/dbus-daemon
unix 3 [ ] STREAM CONNECTED 31111 1804/dbus-daemon @/tmp/dbus-DKUwjjHPN7
unix 3 [ ] STREAM CONNECTED 30980 2205/gvfs-afc-volum
unix 3 [ ] STREAM CONNECTED 26998 1804/dbus-daemon @/tmp/dbus-DKUwjjHPN7
unix 3 [ ] STREAM CONNECTED 22129 1804/dbus-daemon @/tmp/dbus-DKUwjjHPN7
unix 3 [ ] STREAM CONNECTED 22050 1804/dbus-daemon @/tmp/dbus-DKUwjjHPN7
unix 3 [ ] STREAM CONNECTED 35380 2562/evolution-cale
unix 3 [ ] STREAM CONNECTED 30989 1804/dbus-daemon @/tmp/dbus-DKUwjjHPN7
unix 3 [ ] STREAM CONNECTED 34080 2360/nautilus-deskt
unix 3 [ ] STREAM CONNECTED 27641 1804/dbus-daemon @/tmp/dbus-DKUwjjHPN7
unix 3 [ ] STREAM CONNECTED 27392 1804/dbus-daemon @/tmp/dbus-DKUwjjHPN7
unix 3 [ ] STREAM CONNECTED 31183 1804/dbus-daemon @/tmp/dbus-DKUwjjHPN7
unix 3 [ ] STREAM CONNECTED 22243 1804/dbus-daemon @/tmp/dbus-DKUwjjHPN7
unix 3 [ ] STREAM CONNECTED 32070 1804/dbus-daemon @/tmp/dbus-DKUwjjHPN7
unix 3 [ ] STREAM CONNECTED 34179 1804/dbus-daemon @/tmp/dbus-DKUwjjHPN7
unix 3 [ ] STREAM CONNECTED 32299 1804/dbus-daemon @/tmp/dbus-DKUwjjHPN7
unix 3 [ ] STREAM CONNECTED 27412 1804/dbus-daemon @/tmp/dbus-DKUwjjHPN7
unix 3 [ ] STREAM CONNECTED 32067 1804/dbus-daemon @/tmp/dbus-DKUwjjHPN7
unix 3 [ ] STREAM CONNECTED 32463 1804/dbus-daemon @/tmp/dbus-DKUwjjHPN7
unix 3 [ ] STREAM CONNECTED 22210 1804/dbus-daemon @/tmp/dbus-DKUwjjHPN7
unix 3 [ ] STREAM CONNECTED 27329 1804/dbus-daemon @/tmp/dbus-DKUwjjHPN7
unix 3 [ ] STREAM CONNECTED 34176 1804/dbus-daemon @/tmp/dbus-DKUwjjHPN7
unix 3 [ ] STREAM CONNECTED 34960 1804/dbus-daemon @/tmp/dbus-DKUwjjHPN7
unix 3 [ ] STREAM CONNECTED 32069 1804/dbus-daemon @/tmp/dbus-DKUwjjHPN7
unix 2 [ ] DGRAM 10804 -
unix 3 [ ] STREAM CONNECTED 28428 1804/dbus-daemon @/tmp/dbus-DKUwjjHPN7
unix 3 [ ] STREAM CONNECTED 24539 1804/dbus-daemon @/tmp/dbus-DKUwjjHPN7
unix 3 [ ] STREAM CONNECTED 27180 2016/gnome-shell
unix 3 [ ] STREAM CONNECTED 29347 1804/dbus-daemon
unix 3 [ ] STREAM CONNECTED 28430 1804/dbus-daemon @/tmp/dbus-DKUwjjHPN7
unix 3 [ ] STREAM CONNECTED 22254 1804/dbus-daemon @/tmp/dbus-DKUwjjHPN7
unix 3 [ ] STREAM CONNECTED 27319 1804/dbus-daemon @/tmp/dbus-DKUwjjHPN7
unix 3 [ ] STREAM CONNECTED 32080 - /run/systemd/journal/stdout
unix 3 [ ] STREAM CONNECTED 31379 1804/dbus-daemon @/tmp/dbus-DKUwjjHPN7
unix 3 [ ] STREAM CONNECTED 19080 -
unix 3 [ ] STREAM CONNECTED 22304 1804/dbus-daemon @/tmp/dbus-DKUwjjHPN7
unix 3 [ ] STREAM CONNECTED 27411 1804/dbus-daemon @/tmp/dbus-DKUwjjHPN7
unix 3 [ ] STREAM CONNECTED 736248680 - /run/dbus/system_bus_socket
unix 3 [ ] STREAM CONNECTED 29411 1804/dbus-daemon @/tmp/dbus-DKUwjjHPN7
unix 3 [ ] STREAM CONNECTED 32941 1804/dbus-daemon @/tmp/dbus-DKUwjjHPN7
unix 3 [ ] STREAM CONNECTED 32948 1804/dbus-daemon @/tmp/dbus-DKUwjjHPN7
unix 3 [ ] STREAM CONNECTED 32939 1804/dbus-daemon @/tmp/dbus-DKUwjjHPN7
unix 3 [ ] STREAM CONNECTED 32317 1804/dbus-daemon @/tmp/dbus-DKUwjjHPN7
unix 3 [ ] STREAM CONNECTED 24546 1804/dbus-daemon @/tmp/dbus-DKUwjjHPN7
[centos@www ~]$
好像lsof -i:端口号这个命令在centos上不太好使，没有给我显示数据，使用第二种方法可以显示结果。