Linux Basic series: Common Commands (4) _ System monitoring

Job One:

1) Add a 15G SCSI hard disk before opening the Linux system

2) Turn on the system, right click on the desktop, open the terminal

3) for the newly added hard disk partition, a primary partition size of 5G, the remaining space to the extended partition, on the extended partition divided 1 logical partitions, the size of 5G

To set the primary partition:

To set an extended partition:

To set the extension partition logical partition:

To view partition results:

　　　　

4) format primary partition as EXT3 system

Command: MKFS.EXT3/DEV/SDB1

5) Set logical partition to swap partition

Command: MKSWAP/DEV/SDB5

6) enable the Swap partition for the previous step

Command: SWAPON/DEV/SDB5

7) View the status of the swap partition

Command: Swapon–s

Job Two: Free command to view memory

Organizing the role of buffer and cache

Calculate Real Memory utilization

Job Three: DD command to test hard drive speed

Command: DD If=/dev/zero of=/a.txt BS=200MB count=1

Job Four: Find a process named SSH and force it to kill

Command: pgrep ssh #查找ssh相关进程

Kill Process:

[Email protected] mnt]# pkill-9 1201

[Email protected] mnt]# pkill-9 2846

Linux Basic series: Common Commands (4) _ System monitoring