利用Python脚本操作在Linux下实现文件权限管理与控制

import os

def get_file_permission(file_path):
    # 获取文件的权限信息
    permission = oct(os.stat(file_path).st_mode)[-3:]
    return permission

# 示例
file_path = "/home/user/test.txt"
file_permission = get_file_permission(file_path)
print("文件权限：", file_permission)

import os

def change_file_permission(file_path, permission):
    # 修改文件的权限
    try:
        os.chmod(file_path, int(permission, 8))
        print("文件权限修改成功！")
    except Exception as e:
        print("文件权限修改失败：", e)

# 示例
file_path = "/home/user/test.txt"
permission = "644"
change_file_permission(file_path, permission)

import os
import pwd
import grp

def get_file_owner_group(file_path):
    # 获取文件的所有者和所属组
    uid = os.stat(file_path).st_uid
    gid = os.stat(file_path).st_gid

    owner = pwd.getpwuid(uid).pw_name
    group = grp.getgrgid(gid).gr_name

    return (owner, group)

# 示例
file_path = "/home/user/test.txt"
file_owner, file_group = get_file_owner_group(file_path)
print("文件所有者：", file_owner)
print("文件所属组：", file_group)

import os
import pwd
import grp

def change_file_owner_group(file_path, new_owner, new_group):
    # 修改文件的所有者和所属组
    try:
        uid = pwd.getpwnam(new_owner).pw_uid
        gid = grp.getgrnam(new_group).gr_gid
        os.chown(file_path, uid, gid)
        print("文件所有者和所属组修改成功！")
    except Exception as e:
        print("文件所有者和所属组修改失败：", e)

# 示例
file_path = "/home/user/test.txt"
new_owner = "new_user"
new_group = "new_group"
change_file_owner_group(file_path, new_owner, new_group)