python监控linux进程数量
python监控linux进程数量工作原理：基于/proc 文件系统
#!/usr/bin/python
# coding:utf-8
import os
def get_all_pid():
return
def get_cmdline(pid=[]):
ret = []
for pid_dir in pid:
with open("/proc/{}/cmdline".format(pid_dir)) as f:
cmdline = f.readline()
if cmdline:
ret.append(cmdline)
return ret
def get_process_num(process_name):
pids = get_all_pid()
cmdlines = get_cmdline(pids)
num = 0
for line in cmdlines:
if process_name in line:
num += 1
return num
if __name__ == "__main__":
print get_process_num("php-fpm")
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