How to check the number of partitions in Linux

Linux is a widely used operating system. It is very important for system administrators or developers to know how to check the number of partitions. In Linux systems, you can use different commands to check the number of partitions. Next, we will introduce some common methods and give specific code examples.

1. Use the fdisk command

fdisk is a tool used to process disk partitions. You can view all disk and partition information in the system through the fdisk command. The following is a code example for using the fdisk command to view the number of partitions:

1. First open the terminal and enter the following command to view all available disk information:

   sudo fdisk -l

2. Based on the output information, you can see the list of disks in the system and the partition information of each disk. Find out how many partitions there are in total by looking at the number of partitions.

2. Use the lsblk command

The lsblk command is used to list block device information, including disks and partitions. You can also easily check the number of partitions through the lsblk command. The following is a code example for using the lsblk command to view the number of partitions:

1. Enter the following command in the terminal:

   lsblk

2. Through the output information, you can clearly See the block devices in the system and the number of partitions for each device.

3. Use the df command

The df command is used to display the disk space usage. The df command can also indirectly obtain the number of partitions in the system. The following is a code example for using the df command to view the number of partitions:

1. Enter the following command in the terminal:

   df -h

2. View the Filesystem list in the output information, Each row corresponds to a partition. By counting the number of rows, you can know how many partitions there are in total.

The above are code examples of three commonly used methods to check the number of partitions under Linux systems. By learning these methods, you can more easily manage and understand the disk and partition information in the system. I hope the above content is helpful to everyone.

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