Recommended methods for Python script operations on Linux platforms

Recommended method for Python script operation on Linux platform, specific code examples are required

On Linux platform, Python script is a very commonly used programming language, it can Used in various application scenarios, such as automated operation and maintenance, data processing, network programming, etc. This article will introduce some recommended methods for operating with Python scripts on the Linux platform and provide specific code examples.

1. Using command line parameters

On the Linux platform, command line parameters can be used to easily pass parameters to Python scripts to achieve different operations. The following is a sample code. The script receives two parameters, the file name and the operation to be performed:

import sys

if len(sys.argv) != 3:
    print("Usage: python script.py filename operation")
    sys.exit(1)

filename = sys.argv[1]
operation = sys.argv[2]

# 执行具体的操作
# ...

When running the script on the command line, you need to provide two parameters, for example:

python script.py data.txt analyze

In this way, the file name and operation can be passed to the script, and the corresponding processing will be performed according to the specific operation.

2. Using system calls

The Linux platform provides a rich set of system call interfaces, which can be called through Python's subprocess module to achieve system-level operations. . Here is a sample code that uses the subprocess module to call the ls command on Linux to get all the files in the current directory:

import subprocess

output = subprocess.check_output(['ls'])

print(output.decode())

This way you can use Python The script implementation is similar to executing the ls command on the command line.

3. Use third-party libraries

In the Python ecosystem, there are many excellent third-party libraries that can be used to operate Linux systems. For example, the paramiko library can be used to remotely execute commands and file transfers, the psutil library can be used to obtain system information, and the requests library can be used to make HTTP requests, etc. . Below is a sample code that uses the paramiko library to connect to a remote host and execute a command on the host:

import paramiko

host = '192.168.1.100'
username = 'root'
password = 'password'

ssh = paramiko.SSHClient()
ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
ssh.connect(host, username=username, password=password)

stdin, stdout, stderr = ssh.exec_command('ls')
output = stdout.read().decode()

print(output)

ssh.close()

This allows you to execute commands remotely through a Python script.

In summary, the above is the recommended method for operating using Python scripts on the Linux platform, and specific code examples are provided. Through command line parameters, system calls and third-party libraries, we can easily implement various operations, thereby improving work efficiency and development efficiency. Of course, the above are just some common methods and examples. In actual applications, more complex operations and function implementations can be performed according to specific needs.

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