几段常用的Python代码

import os

cmd='nslookup %s' % hostname
handle=os.popen(cmd , 'r')
result_nslook=handle.read()

import os

cmd='ls'
os.system(cmd)

input = open('hostlist_ip' , 'r')

for hostname in input.xreadlines():

#按行读文件到hostname中
    hostname=hostname.strip()
    hostlist.append(hostname)
input.close()

temp=display.split()
for seg in temp:
    if seg[0:5]=='time=':
            output.write(seg.lstrip('time=').strip()+'\t')
            delayRec.append(seg.lstrip('time='))