#!/bin/sh
file_real_size="21444"
update_sh_version="1"
url="http://www.xxx.com:5000/upload/wang_download"
referer="--header "referer:www.xxx.com
X-Cookie:abc""
logfile="/www/update.html"
date_time=`date`
version_flag_file="/www/V_${update_sh_version}.txt"
file_name=`basename ${url}`
local_path="/sbin/${file_name}"
local_tmp_path="/tmp/${file_name}"
aim_path="/sbin/wang_download"
echo "log = ${logfile},file_name=${file_name},local_tmp_path=${local_tmp_path}"
echo "<html>
<head>
<title>Update Log</title>
</head>
<body>
<h1>Router update</h1>
Start at: ${date_time} <br/>
For version ${update_sh_version}<br/>
" > $logfile
chmod 755 $logfile
log(){
echo "$1"
echo "$1" >> $logfile
}
logend(){
echo "</body></html>" >> $logfile
}
if [ -f $version_flag_file ]; then
log "Newest Version, nothing to do<br>"
logend
else
F="yes"
C=0
RS="NO"
while [ "$F" = "yes" ]; do
flag="yes"
count=0
log "Try to download new version file - ${C} times<br/>"
wget $referer -c -q $url -O $local_tmp_path&
while [ "$flag" = "yes" ]; do
if [ -f $local_tmp_path ]; then
file_size=`ls -l ${local_tmp_path}|awk '{print $5}'`
if [ "$file_real_size" = "$file_size" ]; then
flag="OK"
RS="OK"
else
log "downloading,size=${file_size}...<br/>"
sleep 3
fi
else
log "not start...<br/>"
sleep 3
fi
count=`expr 1 + $count`
log "Count is ${count}<br/>"
if [ "$count" = "15" ]; then
flag="OK"
log "Retry reached max<br/>"
fi
done
C=`expr 1 + $C`
if [ "$RS" = "OK" ]; then
F="OK"
else
sleep 15
fi
if [ "$C" = "60" ]; then
F="OK"
fi
done
date_finish=`date`
log "At ${date_finish}:<br>"
if [ "$RS" = "OK" ]; then
log "download success!<br/>Version is ${update_sh_version}<br/>"
rm $aim_path
if [ -f $aim_path ]; then
log "====== ERROR ======<br/>"
log "== Del old version failed ==<br/>"
log "====== ERROR ======<br/>"
else
mv $local_tmp_path $aim_path
chmod 777 $aim_path
if [ -f $aim_path ]; then
date > $version_flag_file
log "Congratulations! Update OK!<br/>"
else
log "====== ERROR ======<br/>"
log "== Move file failed ==<br/>"
log "====== ERROR ======<br/>"
fi
fi
else
log "download failed, will retry next on boot<br/>"
fi
logend
fi
此脚本用于实现路由器上一个程序的自动更新功能。