Trying to create a simple IP Pinger with bash, with the 3rd octet being a var from a user. Unable to determine proper syntax

Issue

So a little insight to what I am trying to achieve is I have multiple cells at a customer site. Each cell has the 3rd Octet of the IP corresponding to the cell ID. My bash script asks the user for an input (cell ID) and uses that stored var to populate the 3rd octet of the ping command. Though, it does not work, and not being familiar with bash I am somewhat at a loss.

The code I have wrote is:

echo Please input the station number.
read statNum

set +e

echo “dev1, dev2, dev3, dev4, dev5, dev6, dev7, dev8, dev9, dev10, dev11, dev12"

ssh -o ConnectTimeout=10 -o StrictHostKeyChecking=no -o ”
ping -c 1 10.100.\“$statNum\“.1 | grep -c ‘ttl’ | tr ‘\n’ ‘,’ ;
ping -c 1 10.100.\“$statNum\“.2 | grep -c ‘ttl’ | tr ‘\n’ ‘,’ ;
ping -c 1 10.100.\“$statNum\“.3 | grep -c ‘ttl’ | tr ‘\n’ ‘,’ ;
ping -c 1 10.100.\“$statNum\“.4 | grep -c ‘ttl’ | tr ‘\n’ ‘,’ ;
ping -c 1 10.100.\“$statNum\“.5 | grep -c ‘ttl’ | tr ‘\n’ ‘,’ ;
ping -c 1 10.100.\“$statNum\“.6 | grep -c ‘ttl’ | tr ‘\n’ ‘,’ ;
ping -c 1 10.100.\“$statNum\“.7 | grep -c ‘ttl’ | tr ‘\n’ ‘,’ ;
ping -c 1 10.100.\“$statNum\“.8 | grep -c ‘ttl’ | tr ‘\n’ ‘,’ ;
ping -c 1 10.100.\“$statNum\“.9 | grep -c ‘ttl’ | tr ‘\n’ ‘,’ ;
ping -c 1 10.100.\“$statNum\“.10 | grep -c ‘ttl’ | tr ‘\n’ ‘,’ ;
ping -c 1 10.100.\“$statNum\“.11 | grep -c ‘ttl’ | tr ‘\n’ ‘,’ ;
ping -c 1 10.100.\“$statNum\“.12 | grep -c ‘ttl’”
done

I am returned with:

ssh -o ConnectTimeout=10 -o StrictHostKeyChecking=no -o 
ping: cannot resolve 10.100."2".1: Unknown host
0,ping: cannot resolve 10.100."2".2: Unknown host
0,ping: cannot resolve 10.100."2".3: Unknown host
0,ping: cannot resolve 10.100."2".4: Unknown host
0,ping: cannot resolve 10.100."2".5: Unknown host
0,ping: cannot resolve 10.100."2".6: Unknown host
0,ping: cannot resolve 10.100."2".7: Unknown host
0,ping: cannot resolve 10.100."2".8: Unknown host
0,ping: cannot resolve 10.100."2".9: Unknown host
0,ping: cannot resolve 10.100."2".10: Unknown host
0,ping: cannot resolve 10.100."2".11: Unknown host
0,ping: cannot resolve 10.100."2".12: Unknown host
0
script.sh: line 24:  unexpected EOF while looking for matching `"'
script.sh: line 25:  syntax error: unexpected end of file

In context, I know that "$statNum" within the 3rd octet of the IP is likely the improper data type and is being passed as a string, but I am not sure of the syntax to make it usable as the proper data type. Also, why am I getting a return for syntax error for matching " and unexpected EOF?

Solution

10.100.\“$statNum\“.1

This way is wrong!

Try with:

10.100.${statNum}.1

Also you must use double or single quote and replace done with exit to the end of file.

echo 'Please input the station number.'
read statNum

set +e

echo 'dev1, dev2, dev3, dev4, dev5, dev6, dev7, dev8, dev9, dev10, dev11, dev12'

ssh -o ConnectTimeout=10 -o StrictHostKeyChecking=no -o "
ping -c 1 10.100.${statNum}.1 | grep -c 'ttl' | tr '\n' ',' ;
ping -c 1 10.100.${statNum}.2 | grep -c 'ttl' | tr '\n' ',' ;
ping -c 1 10.100.${statNum}.3 | grep -c 'ttl' | tr '\n' ',' ;
ping -c 1 10.100.${statNum}.4 | grep -c 'ttl' | tr '\n' ',' ;
ping -c 1 10.100.${statNum}.5 | grep -c 'ttl' | tr '\n' ',' ;
ping -c 1 10.100.${statNum}.6 | grep -c 'ttl' | tr '\n' ',' ;
ping -c 1 10.100.${statNum}.7 | grep -c 'ttl' | tr '\n' ',' ;
ping -c 1 10.100.${statNum}.8 | grep -c 'ttl' | tr '\n' ',' ;
ping -c 1 10.100.${statNum}.9 | grep -c 'ttl' | tr '\n' ',' ;
ping -c 1 10.100.${statNum}.10 | grep -c 'ttl' | tr '\n' ',' ;
ping -c 1 10.100.${statNum}.11 | grep -c 'ttl' | tr '\n' ',' ;
ping -c 1 10.100.${statNum}.12 | grep -c 'ttl' | tr '\n' ',' ;"
exit

Answered By – Darby_Crash

This Answer collected from stackoverflow, is licensed under cc by-sa 2.5 , cc by-sa 3.0 and cc by-sa 4.0

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