I want to execute the below command in an expect script.
`netstat -nr | while read line;do flag=$(echo $line | cut -d' ' -f4); if [[ $flag == "UG" ]];then gateway=$(echo $line | cut -d' ' -f2);echo $gateway;fi;done`
The aim of the script is to login to a host and get the gateway of the hots to create another ip ( eth0 ) with ifcong eth0:0 <ip> and add a IP route thereafter with-- ip route add <ip> via <gateway ip>.
i have tried the below possibilities:
1)
`expect -c '
spawn bash -c "ssh user#host"
expect {
// password provided
}
expect "*?$*"
send "\$cmd"
expect EOF
'`
For this i get the error: missing )
while executing
"set cmd "netstat -nr | while read line;do flag=$(echo $line | cut -d"
couldn't read file " -f4); if [[ $flag == "UG" ]];then gateway=$(echo $line | cut -d": no such file or directory
2)
`expect -c
spawn bash -c "ssh user#host"
expect {
// password provided
}
expect "*?$*"
send "netstat -nr | while read line;do flag=\$(echo \$line | cut -d' ' -f4); if [[ \$flag == "UG" ]];then gateway=\$(echo \$line | cut -d' ' -f2);echo \$gateway;fi;done\r"
expect EOF
'`
For this i get error as: couldn't read file " -f4); if [[ $flag == "UG" ]];then gateway=$(echo $line | cut -d": no such file or directory
Is there no way to execute bash commands inside an expect script and register the out to a variable so that it can be used subsequently in the expect script.
I have tried out the way of set output $expect_out(buffer) but it does not register the output at all.
foreach {whole gw f} [regexp -all -inline {\S+\s+(\S+)\s+\S+\s+(\S+)} [exec netstat -nr]] {
if {$f eq "UG"} {
puts "Gateway : $gw"
}
}
Output :
Gateway : 192.xx.xx.1
Related
I'm writing a code in order to capture information about routers thanks to SSH and SNMP. I work on network with 4 different router configurations. In my script bash, a while loop read line by line the IP address of routers then try to know the configuration and finally capture information about my router.
To do so, I use a while loop but it only run for one IP address...
I assume that the problem comes from SNMP or SSH.
I tried the while loop just with
echo $line
The while loop :
while IFS= read -r line
do
echo
echo "line : $line"
echo
typeRouter=""
version=""
# type multitech V4.1
type=$(snmpget -v3 -u Ai -l authpriv -a SHA -A "pass" -x AES -X "pass" "$line" 1.3.6.1.4.1.995.14.1.1.8.3.0 | cut -d\" -f2 | cut -d. -f1 )
if [[ "$type" == "4" ]]; then
typeRouter=2
version=4
fi
# type sierra
type=$(snmpget -v3 -u Ai -l authpriv -a SHA -A "pass" -x AES -X "pass" "$line" iso.3.6.1.4.1.20542.9.1.1.9.7.0 | cut -d\" -f2 )
if [[ "$type" == "LX40" ]]; then
typeRouter=3
fi
case $typeRouter in
2)
echo "Mutlitech"
# version 4.1 et ultérieur
MultiV4 "$line" "$txtfile" "pass" "pass"
;;
3) # TODO PASSWORD
echo "Sierra"
Sierra "$line" "$txtfile" "pass" "pass"
;;
*)
echo
echo "Unknown router model, IP : $line"
echo
;;
esac
done < "file"
The function called
MultiV4 () {
# "$1" : #IP
# $2 : txtfile
# "$3" : mdp snmp
# $4 : mdp ssh
# Files
txtfile=$2
model="Multitech"
MACtxt="ephemere/mac.txt"
MacAddressRouter=$(snmpget -v3 -u Ai -l authpriv -a SHA -A "$3" -x AES -X "$3" "$1" iso.3.6.1.4.1.995.14.1.1.5.1.0 | cut -d\" -f2)
echo "Router MAC address : $MacAddressRouter"
sshpass -p "$4" ssh -o StrictHostKeyChecking=no admin#"$1" "cat /proc/net/arp" > "$MACtxt"
rssiPacket=$(snmpget -v3 -u Ai -l authpriv -a SHA -A "$3" -x AES -X "$3" "$1" iso.3.6.1.4.1.995.14.1.1.3.5.0 | cut -d: -f2 | cut -d\" -f2 | tr -d dBm)
echo "RSSI packet : $rssiPacket"
firmware=$(snmpget -v3 -u Ai -l authpriv -a SHA -A "$3" -x AES -X "$3" "$1" iso.3.6.1.4.1.995.14.1.1.3.4.0 | cut -d: -f2 | cut -d\" -f2)
echo "Firmware version : $firmware"
echo "$MacAddressRouter", "$MacAddressPlayer", "$rssiPacket", "$model", "$firmware", "$imei", "$SIMStatus", "$operator", "$connectionType", "$IPaddress", "$SINR", "$RSRP", "$RSRQ" >> "$txtfile"
}
My file
10.252.144.138
10.252.144.140
10.252.144.23
10.252.144.15
10.252.144.134
Can you help me why the loop running only one time ?
I solved the problem using
ssh -n
Go see this answer for more explanation : Shell script while read line loop stops after the first line
i have a script that looks something like
#!/bin/bash$
#x=new value$
#y=old value$
$
export PATH=/xxx/xxx/xxx:$PATH$
$
#get the difference of two files$
diff --side-by-side --suppress-common-lines file.txt file1.txt | tr -d "|,<,>,'\t'" | sed 's/ /:/g' | sed 's/^://' > diff.txt$
cat diff.txt$
$
#get the values$
for i in `cat diff.txt`; do$
plug_x=`echo $i | cut -d ":" -f1`$
echo "the value of jenkins plugin is $plug_x"$
ver_x=`echo $i | cut -d ":" -f2`$
echo "the value of jenkins version is $ver_x"$
plug_y=`echo $i | cut -d ":" -f3`$
echo "the value of db plugin is $plug_y"$
ver_y=`echo $i | cut -d ":" -f4`$
echo "the value of db version is $ver_y"$
if [ -z "$ver_y" ] && [ -z "$ver_x" ] ;$
then $
echo "the plugin is newly added"$
#newly added plugin should be updated in the db$
# mysql -u root -ppassword -h server --local-infile db << EOFMYSQL$
#update the table with the new version$
#EOFMYSQL$
else$
echo "the plugin has changes"$
mysql -u root -ppassword -h server --local-infile db << EOFMYSQL$
insert into table (xxx, xxx) values('$ver_x','$plug_x');$
$
EOFMYSQL $
fi$
done$
but when i run this script it saya
Syntax error: end of file unexpected (expecting "fi")
but the fi is there..i cant figure out why it is throwing the error
this error does not come when i just have echo statements in the script
I would suggest that if you are just running that one query to insert into table, then echo the query and pipe it to the mysql command, that would be (in my opinion) a better and efficient choice.
#!/bin/bash
diff --side-by-side --supress-common-lines test1.txt test2.txt | tr -d "|,<,>,'\t'" | sed 's/ /:/g' | sed 's/^://' > ./diff.txt
for i in `cat ./diff.txt`; do
plug_x=`echo $i | cut -d ":" -f1`
echo "the value of jenkins plugin is $plug_x"
ver_x=`echo $i | cut -d ":" -f2`
echo "the value of jenkins version is $ver_x"
plug_y=`echo $i | cut -d ":" -f3`
echo "the value of db plugin is $plug_y"
ver_y=`echo $i | cut -d ":" -f4`
echo "the value of db version is $ver_y"
if [ -z "$ver_y" ] && [ -z "$ver_x" ]
then
echo "the plugin is newly added"
else
echo "the plugin has changes"
echo "insert into table (xxx, xxx) values('$ver_x','$plug_x')" | mysql -u root -ppassword -h server --local-infile db
fi
done
That should do the job or if you'd like to use While loop, you can certainly do so.
#!/bin/bash
diff --side-by-side --supress-common-lines test1.txt test2.txt | tr -d "|,<,>,'\t'" | sed 's/ /:/g' | sed 's/^://' > ./diff.txt
cat ./diff.txt | while read i
do
plug_x=`echo $i | cut -d ":" -f1`
echo "the value of jenkins plugin is $plug_x"
ver_x=`echo $i | cut -d ":" -f2`
echo "the value of jenkins version is $ver_x"
plug_y=`echo $i | cut -d ":" -f3`
echo "the value of db plugin is $plug_y"
ver_y=`echo $i | cut -d ":" -f4`
echo "the value of db version is $ver_y"
if [ -z "$ver_y" ] && [ -z "$ver_x" ]
then
echo "the plugin is newly added"
else
echo "the plugin has changes"
echo "insert into table (xxx, xxx) values('$ver_x','$plug_x')" | mysql -u root -ppassword -h server --local-infile db
fi
done
Hey all I have the following BASH script running at startup on my WRT1900ac linksys:
USER="admin"
PASS="passhere"
PROTOCOL="http"
ROUTER_IP="192.168.1.1"
# Port to connect to which will provide the JSON data.
PORT=9898
while [ 1 ]
do
# Grab connected device MAC addresses through router status page.
MACS=$(curl -s --user $USER:$PASS $PROTOCOL://$ROUTER_IP/Status_Wireless.live.asp)
# clear temp JSON file
echo > temp.log
# Get hostname and IP (just in case there is no hostname).
for MAC in $(echo $MACS | grep -oE "wl_mac::[a-z0-9]{2}:[a-z0-9]{2}:[a-z0-9]{2}:[a-z0-9]{2}:[a-z0-9]{2}:[a-z0-9]{2}" | cut -c 9-);
do
grep 0x /proc/net/arp | awk '{print $1 " " $4}' | while IFS= read -r line
do
IP=$(echo $line | cut -d' ' -f1)
MACTEMP=$(echo $line | cut -d' ' -f2)
HOST=$(arp -a | grep $IP | cut -d' ' -f1)
# if no hostname exists, just use IP.
if [ "$HOST" == "" ]
then
HOST=$IP
fi
if [ "$MAC" == "$MACTEMP" ]
then
JSON="{'hostname' : '$HOST', 'mac_address' : '$MAC'}"
echo $JSON >> temp.log
fi
done
done
# Provide the JSON formatted output on $PORT of router.
# This allows one connection before closing the port (connect, receive data, close).
# Port will reopen every 5 minutes with new data as setup in a cron job.
echo -e "HTTP/1.1 200 OK\n\n $(cat temp.log)" | nc -l -p$PORT >/dev/null
# Wait for 10 seconds and do it all over.
sleep 10
done
And for some reason when I reboot the router and then try to visit http://192.168.1.1:9898 it just shows a blank page even though I have my android cell phone connected via wifi to the router and the router shows the MAC address on the status page.
What should be on that page is all the wireless MAC address that are currently connected to the router and displaying them out in JSON form.
Any BASH guru's here that can help spot the problem?
I think it should be
echo -e "HTTP/1.1 200 OK\n\n $(cat temp.log)" | nc -l -p$PORT 0.0.0.0 >/dev/null
I have a while read line loop where i am assigning $user and $quota twhich are coming from stdout but i have also a file from another server where i am checking if $user is existing in this file, which is also containing the $user's quota.
I need to compare the $quota value which i am getting in stdout with the value within the file.
example:
zmsoap -z GetQuotaUsageRequest -v -u https://$sourceserver:7071/service/admin/soap/ |awk {'print $4" "$5'} | cut -d'"' -f2,4 | sed -r 's/["]+/ /g' | while read line
do {
user1=`echo $line|cut -f1 -d " "`
quota1=`echo $line|cut -f2 -d " "`
echo "$user1 has $quota1 on $sourceserver"
if grep -q "$user1" "$allremotequotasnew"; then
echo "OK: $user1 is EXISTING on $destserver"
else
echo "ERROR: $user1 NOT FOUND on $destserver" && echo "Creating $user1 on $destserver now..."
fi
}
done
any ideas? thanksa lot in advance
The file looks like: user33 quota and i need to check if $user is existing in the file, and if so, then also cut out it's quota
You can solve this question by the following script clips.
grep "$user1" "$allremotequotasnew" > /dev/null
if [ $? -eq 0 ];then
echo "OK: $user1 is EXISTING on $destserver"
dest_line=`grep "$user1" "$allremotequotasnew"`
dest_user=`echo $dest_line|cut -f1 -d " "`
dest_quota=`echo $dest_line|cut -f2 -d " "`
else
echo "ERROR: $user1 NOT FOUND on $destserver"
fi
dest_user and dest_quota are what you want to get from file.
I'm trying to make a simple bash script that will iterate through a text file containing IP addresses,
ping them one time, and see if they are alive or not.
This is my work so far:
#!/bin/bash
for ip in $(cat ips.txt); do
if [[ "1" == "$(ping -c 1 $ip | grep 'packets transmitted' | cut -d ' ' -f 4)"]]
echo $ip
fi
done
Any Suggestions?
Thanks!
This seems to work:
#!/bin/bash
for ip in $(cat ips.txt); do
if [ "1" == "$(ping -c 1 $ip | grep 'packets transmitted' | cut -d ' ' -f 4)" ]; then
echo $ip
fi
done
You needed the ; then after the if [ ... ] statement (same thing goes for elif, not else), and a space between the last bracket of the statement and the statement's contents. Also this appears to work fine with just single brackets, and this may be more portable (see here).
Works on Bash 4.2.47
Yes. You can use a newline instead of ; if you like, but you always need the then keyword.
if [ "1" == "$(ping -c 1 $ip | grep 'packets transmitted' | cut -d ' ' -f 4)" ]
then echo $ip
fi
# or
if [ "1" == "$(ping -c 1 $ip | grep 'packets transmitted' | cut -d ' ' -f 4)" ]
then
echo $ip
fi