linux下一些命令的c语言的实现

				#!/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