Aug 14

网上的都要用到 find -mtime,这个参数默认的 busybox 是不支持的,当然你可以下 findunti ,我这个脚本无需额外的程序支持:

#!/bin/sh
# optware backup
# Sun Feb 19 00:34:42 CST 2012
# by Punk

keep=3                                                #保留历史备份数
backup_source="opt"                            #需要备份的目录,不可有/开头
backup_dest="/cifs2/hdtv/!opt_bak/"      #备份文件存储目录
date=`date +%Y-%m-%d`
hostname=$(hostname -s)
prename="$hostname-optware"
filename="$prename-$date.tgz"

delete_old() {
echo Deleting old backup of Optware...
totalline=`find "$backup_dest" -name "$prename*.tgz" | wc -l`
if [ $totalline -ge $keep ];then
    dell=$(($totalline-$keep))
    find "$backup_dest" -name "$prename-*.tgz" | sort | head -n $dell | xargs rm -rf
fi
echo Deleting old backup of Optware Finished!
}

backup() {
echo "Backing Up Your Optware System..."
tar czf $backup_dest/$filename -C / $backup_source
echo "Optware Backup Finished!"
}
backup
delete_old

Jun 03

1478 for PPPoA/VC-MUX

1470 for PPPoA/LLC

1446 for PPPoE over ATM/LLC

May 29

2015.07.03 更新,更好的支持 Tomato ARM 版本:

#!/bin/sh

#USE AT YOUR OWN RISK.
#THIS SCRIPT DOES NOT COME WITH ANY WARRANTY WHATSOEVER.
#
#Backs up selected nvram variables in "nvram export --set" format.
#
#Correctly handles multi-line entries.
#
#Thanks to ryzhov_al for basic approach.
#
#Should work equally well with both MIPS and ARM builds.
#
#Looks for a list of items to export in $etc/scriptname.ini
#OR enter items to grep for below.
#
#The items list is a list of regular expressions to match against the
#nvram variable names.
#
#Script assumes all entries are at beginning of line(prefixed with ^).
#
#Leave items list blank to backup up all of nvram.  Resulting in essentially
#the same output as MIPS "nvram export --set"
#
#The items list below is only intended as example and is not complete or
#comprehensive. Customize for your own use.
#

#Edit list below if not using .ini file, it is ignored if .ini file is found
items='
DSCP_
atm_overhead
cifs[1-2]
ctf_
ct_
dhcp_
dhcpd_
ddnsx[0-2]
dnsmasq_
dns_
https_
http_enable
http_lanport
http_wanport
http_passwd
lan_hostname
lan_ipaddr
lan_proto
modem_ipaddr
ne_
new_qoslimit_
nf_
ntp_
portforward
ppp_
pppoe_
qos_
qosl_
router_name
rrule[0-9]
cstats_
rstats_
script_
smbd_
sch_
sshd_eas
sshd_forwarding
sshd_motd
sshd_pass
sshd_port
sshd_remote
sshd_rport
tm_
tomatoanon_
usb_
upnp_
wan_dns
wan_proto
wan_hostname
wan_domain
wan_hwaddr
wan_mtu
web_css
web_mx
wl[0-9]_security_mode
wl[0-9]_ssid
wl[0-9]_wpa_psk
'

etc=/opt/etc
base=${0##*/}; base=${base%.*}
config=$etc/$base.ini

#file to output - default to stdout
filename="$1"
curr_date=$(date +"%Y-%m-%d")
if [ $# -eq 0 -o "$filename" = "" ]; then
    backupfile="/opt/etc/init.d/nvram_backup-${curr_date}.txt"
else
    backupfile="/opt/etc/init.d/${filename}-${curr_date}.txt"
fi

grepstr=$( { [ -r $config ] && cat $config || echo "$items" ; } | sed -e 's/[t ]//g;/^$/d' | sed ':a;N;$!ba;s/n/\|^/g')

{
echo "#Exporting $grepstr"
for item in $(nvram show 2>/dev/null | grep "^.*=" | grep "$grepstr" | grep -v "hwaddr" | awk -F= "{print $1}" | sort -u)
do
  item_value="$(nvram get $item | sed 's!([$\"`])!\1!g'; echo nvgetwasnull)"
  case $item_value in
  nvgetwasnull) ;;
  *) echo "nvram set ${item}=\"${item_value%
nvgetwasnull}\"" ;;
  esac
done
}>"$backupfile"

比较完美的解决了多行文本框内容的备份,例如脚本等处。

#!/bin/sh

#
#USE AT YOUR OWN RISK.
#THIS SCRIPT DOES NOT COME WITH ANY WARRANTY WHATSOEVER.
#

#file to output
backupfile='/mnt/optware/opt/etc/init.d/nvram_restore.sh'

#Enter strings to grep for here.
#
#Use heredocs to build grep from one entry per
#line for ease of maintenance.
#
#Could easily be changed to read external config file.
#
#sed is not my best skill - there may well be cleaner syntax, and
#admittedly this is some quick cut and paste from another script
grepstr=$(cat << EOF |  sed -e 's/[t ]//g;/^$/d' | sed ':a;N;$!ba;s/n/\|/g'
^dhcp_
^dhcpd_
^ddnsx
^dnsmasq
^dns_
^https_
^http_passwd
^lan_hostname
^lan_ipaddr
^wan_dns
^wan_proto
^wan_hostname
^wan_domain
^wan_hwaddr
^router_name
^modem_ipaddr
^rrule1
^cstats_
^rstats_
^qos
^new_qoslimit_
^ctf_
^ct_
^bt_
^ne_
^nf_
^ntp_
^smbd_
^usb_
^upnp_
^script_
^wl[0-9]_security_mode
^wl[0-9]_ssid
^wl[0-9]_wpa_psk
^cifs[0-9]
EOF
)

#uncomment next line if you want to see what above creates
#echo $grepstr
[ -e $backupfile ] && rm $backupfile

echo "echo Restoring NVRAM settings" > $backupfile
echo "echo Note: This will overwrite your current NVRAM settings in NVRAM," >> $backupfile
echo "echo but they will not be permanent unless you do a 'nvram commit'" >> $backupfile

echo "echo Restore NVRAM rules..." >> $backupfile
echo Exporting NVRAM rules to $backupfile

#Below mostly from ryzhov_al
#sed to escape chars is mine, may not be complete.

for item in $(nvram show | grep "$grepstr"  | awk -F= "{print $1}")
do
    item_value=$(nvram get ${item} | sed 's!([$\"`])!\1!g')
    echo "nvram set ${item}=\"$item_value\"" >> $backupfile
done

echo "echo Restore of NVRAM settings complete" >> $backupfile
echo "echo To make them permanent, do: nvram commit" >> $backupfile

chmod +x $backupfile

echo NVRAM settings have been exported to $backupfile
echo Now feel free to try new settings
echo To restore from backup, type: $backupfile

感谢 linksysinfo 的高手们!


May 05

其实 DD-WRT,OpenWRT 也可以,只要开了 SSH 远程登录。

主要的工具是 Bitvise Tunnelier 里面带的 sexec.exe,命令行是:

sexec 用户名@路由器地址:SSH端口 -pw=SSH登录密码 -cmd="wl radio on"

SSH 端口默认是 22 ,如果没改就不需要填。

范例:

开启无线:

sexec root@192.168.2.1 -pw=Abcd111222 -cmd="wl radio on"
ping 127.0.0.1 -n 6 -w 1000
sexec root@192.168.2.1 -pw=Abcd111222 -cmd="wl -i eth2 radio on"

关闭无线:

sexec root@192.168.2.1 -pw=Abcd111222 -cmd="wl radio off"
ping 127.0.0.1 -n 6 -w 1000
sexec root@192.168.2.1 -pw=Abcd111222 -cmd="wl -i eth2 radio off"

wl -i eth2 radio on/off 是用来控制有 5G 路由器的频段开关的,一般 2.4G 的不需要这行。


Apr 03

ASUS RT-N16 可谓好玩又不容易死的一款路由,内存大闪存大就是 NVRAM 尺寸太小,才 32k 。(新的 Linksys 路由器都是 64k)

我的16还加了 5G 网卡,又多了一堆设置,开机就剩余 8k 不到,这样的话,多写几个脚本,加多几个静态 IP 就不够用,G 了一下,DD-WRT Wiki 有答案,随意改一下 Tomato 就能用:

test -f /tmp/nvramshow && rm /tmp/nvramshow
nvram show >> /tmp/nvramshow
i=0
while read -r line; do
val=${line#*=}
var=${line%*=}
if [[ "$val" == "" ]] && [[ "$var" != "wl_wpa_psk" ]]; then
nvram unset $var
fi
i=`expr $i + 1`
if [[ $i == 50 ]]; then
sleep 2
i=0
fi
done < /tmp/nvramshow
exit 0

原理就是把 NVRAM 设置里面那些值为空的全部删掉,这样大约能节省出 3-5k 出来~ :mrgreen:

简化版:(会丢失无线密码,请重设!)

for line in $(nvram show | grep =$); do var=${line%*=}; nvram unset $var;
done
nvram commit


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