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Shell Programming and Scripting

Call input from file

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# 1  
Old 11-18-2010
Call input from file
Hi I want to do a while loop script that get the info from a txt file. The loop should call a txt file whit ip numbers and working through the list start at top. If the ip number has the telnetport open (22) then the output should be saved to a file.

Code:
while : ; do                     
  read i;                     
  if [ $i  first row from txt file and to the end save only open port]; then                    
 loop
  break  
  fi
done

# 2  
Old 11-19-2010
Code:
#!/bin/sh
port=22
while read ip
do
        nc -z $ip $port 2>&1 > /dev/null
        test $? -eq 0 && echo IP $ip has port $port open >> open_ports.file
done < file

This User Gave Thanks to danmero For This Post:
pelle
# 3  
Old 11-27-2010
thanks a million for the fast answer , works like a charm
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