Linux 工作常用命令(五)解释!(图文并茂)

mount

挂载设备

Cd /mnt

mkdir -p /mnt/cdrom

mount -t auto /dev/cdrom /mnt/cdrom

场景：挂载U盘你的LINUX里面，还有需要挂载光驱到系统里面。

我们可以这样去想象：镜像ISO，就好比光盘；设备状态，就好比连接光驱或者弹出光驱。

[root@localhost /]# mkdir -p /mnt/cdrom

[root@localhost /]#

[root@localhost /]#

[root@localhost /]#

[root@localhost /]# mount -t auto /dev/cdrom /mnt/cdrom

mount: /dev/sr0 is write-protected, mounting read-only

[root@localhost /]# cd /mnt/cdrom/

[root@localhost cdrom]# ls

CentOS_BuildTag EFI EULA GPL images isolinux LiveOS Packages repodata RPM-GPG-KEY-CentOS-7 RPM-GPG-KEY-CentOS-Testing-7 TRANS.TBL

[root@localhost cdrom]#

[root@localhost cdrom]# cd Packages/

[root@localhost Packages]# rpm -ivh ne

neon-0.30.0-3.el7.x86_64.rpm nepomuk-widgets-4.10.5-3.el7.x86_64.rpm netpbm-progs-10.61.02-9.el7.x86_64.rpm net-snmp-devel-5.7.2-24.el7.x86_64.rpm nettle-devel-2.7.1-4.el7.x86_64.rpm

nepomuk-core-4.10.5-5.el7.x86_64.rpm netcf-libs-0.2.8-1.el7.x86_64.rpm netsniff-ng-0.5.8-6.el7.x86_64.rpm net-snmp-libs-5.7.2-24.el7.x86_64.rpm net-tools-2.0-0.17.20131004git.el7.x86_64.rpm

nepomuk-core-devel-4.10.5-5.el7.x86_64.rpm netlabel_tools-0.20-5.el7.x86_64.rpm net-snmp-5.7.2-24.el7.x86_64.rpm net-snmp-utils-5.7.2-24.el7.x86_64.rpm newt-0.52.15-4.el7.x86_64.rpm

nepomuk-core-libs-4.10.5-5.el7.x86_64.rpm netpbm-10.61.02-9.el7.x86_64.rpm net-snmp-agent-libs-5.7.2-24.el7.x86_64.rpm nettle-2.7.1-4.el7.x86_64.rpm newt-python-0.52.15-4.el7.x86_64.rpm

[root@localhost Packages]# rpm -ivh net-tools-2.0-0.17.20131004git.el7.x86_64.rpm

Preparing... ################################# [100%]

Updating / installing...

1:net-tools-2.0-0.17.20131004git.el################################# [100%]

[root@localhost Packages]#

[root@localhost Packages]# netstat -anp

Active Internet connections (servers and established)

Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name

tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 1410/sshd

tcp 0 0 127.0.0.1:25 0.0.0.0:* LISTEN 2517/master

tcp 0 48 192.168.92.128:22 192.168.92.1:1105 ESTABLISHED 2602/sshd: root@pts

tcp6 0 0 :::22 :::* LISTEN 1410/sshd

tcp6 0 0 ::1:25 :::* LISTEN 2517/master

udp 0 0 0.0.0.0:68 0.0.0.0:* 1183/dhclient

udp 0 0 0.0.0.0:34217 0.0.0.0:* 1183/dhclient

udp6 0 0 :::65440 :::* 1183/dhclient

raw6 0 0 :::58 :::* 7 859/NetworkManager

Active UNIX domain sockets (servers and established)

umount

卸载挂载设备

Umount /mnt/cdrom

[root@localhost mnt]# ls

cdrom

[root@localhost mnt]# cd ..

[root@localhost /]# umount /dev/cdrom

[root@localhost /]# cd /mnt/cdrom/

[root@localhost cdrom]# ls

[root@localhost cdrom]#