Steps to check the number of Linux system partitions

Steps to check the number of Linux system partitions

Linux system is an open source operating system that is widely used in servers, embedded devices and other fields. In Linux systems, partitioning is the operation of dividing a disk into several logical parts. How to check the number of partitions in a Linux system? Specific steps and code examples are described below.

The steps are as follows:

1. Open the terminal of the Linux system. You can use the shortcut key Ctrl Alt T to open the terminal.

2. Enter the following command to view the current partition status of the system:

   sudo fdisk -l

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   This command will display the partition status of all disks, including mounted and unmounted partitions.

3. According to the output results, you can see the partitioning of the disk, as shown below:

   Device       Start       End   Sectors   Size Type
   /dev/sda1     2048   1953791   1951744   953M EFI System
   /dev/sda2  1953792 156334847 154380056  73.6G Linux filesystem

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   Among them, /dev/sda1, /dev/sda2, etc. are the partitions of the disk. name.

4. The number of partitions displayed by statistics. The number of system partitions can be determined based on the number of output results.

Code example:

The following is a simple Python code example, which can get the number of partitions of the system and output the result by calling the system command.

import subprocess

def count_partitions():
    cmd = "sudo fdisk -l | grep ^/dev | wc -l"
    result = subprocess.run(cmd, shell=True, capture_output=True, text=True)
    if result.returncode == 0:
        return int(result.stdout.strip())
    else:
        return "Error"

if __name__ == "__main__":
    num_partitions = count_partitions()
    if num_partitions != "Error":
        print("系统分区数量为：", num_partitions)
    else:
        print("获取分区数量出错。")

Through the above steps and code examples, we can easily check the number of partitions in the Linux system. Hope this article helps you!

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