使用Python在AIX系统上获取进程信息

本示例代码使用Python语言实现在AIX系统上获取进程信息的功能，主要使用Python的subprocess模块执行系统命令，然后解析命令的输出结果。通过示例代码可以获取进程的PID、进程名、进程所占内存大小等信息，并可以根据进程名进行进程筛选。

import subprocess

# 执行ps命令获取系统进程信息
ps_cmd = "ps -Ao pid,ppid,comm,rss,vsz,state | grep -v PID"
p = subprocess.Popen(ps_cmd, stdout=subprocess.PIPE, shell=True)
ps_output, err = p.communicate()

# 解析ps命令的输出结果，获取进程信息
processes = []
for ps_line in ps_output.strip().split('\n'):
    ps_fields = ps_line.split()
    pid = ps_fields[0]
    parent_pid = ps_fields[1]
    process_name = ps_fields[2]
    rss = int(ps_fields[3])
    vsz = int(ps_fields[4])
    state = ps_fields[5]
    processes.append({'pid': pid, 'parent_pid': parent_pid, 'name': process_name, 
                      'rss': rss, 'vsz': vsz, 'state': state})

# 按进程名进行筛选，获取符合条件的进程信息
target_processes = [p for p in processes if p['name'] == 'target_process']

# 输出符合条件的进程信息
for tp in target_processes:
    print('PID: {}, Name: {}, Memory RSS: {}, Memory VSZ: {}'.format(tp['pid'], tp['name'], tp['rss'], tp['vsz']))

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