ping.sh

《linux应用开发技术详解》的配套代码

#!/bin/bash
LOGDIR=/var/log/netlog
While :
Do 
  DATE = 'date  –d  today  + %y%m%d ' 
  TIME = 'date  -d  today  +%T '
  Echo "$TIME || 'ping $1  -c  1  -w 1  |  sed  -n  '2p' | awk  '{if($6 == "") ($6="request timeout "):  print $6,$7}' '" >>${LOGDIR}/${1}_$DATE.log
Sleep 1
Done