06_系统空间查看

查看虚拟机系统信息

# 查看硬盘信息
root@bk:~/ckh# lsblk
NAME   MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
sr0     11:0    1 198.4M  0 rom
vda    254:0    0   100G  0 disk
└─vda1 254:1    0   100G  0 part /
vdb    254:16   0    50G  0 disk
└─vdb1 254:17   0    50G  0 part /mnt/vdb1

# 查看文件系统 ext4 、 xfs
root@bk:~/ckh# blkid
/dev/sr0: BLOCK_SIZE="2048" UUID="2022-11-08-12-19-37-00" LABEL="config-2" TYPE="iso9660"
/dev/vda1: UUID="c0b9ecd8-f922-4e5d-bccb-83fbc94ad23b" BLOCK_SIZE="4096" TYPE="ext4" PARTUUID="bcfcb5cb-01"
/dev/vdb1: UUID="da8f59ec-f2dc-4bfb-b658-4fb3e37b0a3d" BLOCK_SIZE="512" TYPE="xfs" PARTUUID="914203f3-4727-044c-8112-bde5e4b9f80f"

# 查看挂载的盘
root@bk:~/ckh# df -h
Filesystem      Size  Used Avail Use% Mounted on
udev            3.8G     0  3.8G   0% /dev
tmpfs           771M  492K  770M   1% /run
/dev/vda1        99G   46G   49G  49% /
tmpfs           3.8G   24K  3.8G   1% /dev/shm
tmpfs           5.0M     0  5.0M   0% /run/lock
/dev/vdb1        50G  438M   50G   1% /mnt/vdb1
tmpfs           771M     0  771M   0% /run/user/0
root@bk:~/ckh#
root@bk:~/ckh# ls /mnt/vdb1
p01_bkApi  p01_bkApi.zip

# 查看内存
root@bk:~/ckh# free -h
               total        used        free      shared  buff/cache   available
Mem:           7.5Gi       551Mi       4.0Gi       2.0Mi       3.0Gi       6.7Gi
Swap:             0B          0B          0B

# 查看网卡及私网IP地址 eth0
root@bk:~/ckh# ifconfig
eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 10.0.4.10  netmask 255.255.252.0  broadcast 10.0.7.255
        inet6 fe80::5054:ff:feb9:d12d  prefixlen 64  scopeid 0x20<link>
        ether 52:54:00:b9:d1:2d  txqueuelen 1000  (Ethernet)
        RX packets 72047112  bytes 13112293224 (12.2 GiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 69388396  bytes 13075638090 (12.1 GiB)
        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 171450  bytes 180289958 (171.9 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 171450  bytes 180289958 (171.9 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

# 查看是否联网 ping
root@bk:~/ckh# ping  www.baidu.com
PING www.a.shifen.com (153.3.238.102) 56(84) bytes of data.
64 bytes from 153.3.238.102: icmp_seq=1 ttl=50 time=10.8 ms
64 bytes from 153.3.238.102: icmp_seq=2 ttl=50 time=10.8 ms
64 bytes from 153.3.238.102: icmp_seq=3 ttl=50 time=10.8 ms
^C
--- www.a.shifen.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2003ms
rtt min/avg/max/mdev = 10.779/10.801/10.839/0.026 ms
root@bk:~/ckh#
root@bk:~/ckh#
root@bk:~/ckh# ping www.abaidu.com
ping: www.abaidu.com: Temporary failure in name resolution

# 系统变量
$RANDOM
$USER
$UID
$SHELL
$PATH