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Read 2 input and produce it in single ouput?

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# 8  
Old 03-02-2015
You could add this to make it the loop stop for certain input, in this case a zero or no input at all (empty string):
Code:
while 
  printf "Enter new group name (enter 0 to stop): "
  read service_group
do
  printf "You entered: %s\n" "$service_group"
  case $service_group in
    0|"") break
  esac
  printf "create service_group %s\n" "$service_group"
  while read port
  do
    printf "create service_group %s '' services:tcp%s\n" "$service_group" "$port"
  done < file
done


Of course, if it always only needs to be executed once, then you can leave out the outer loop altogether:
Code:
printf "Enter new group name : "
read service_group
printf "You entered: %s\n" "$service_group"
printf "create service_group %s\n" "$service_group"
while read port
do
  printf "create service_group %s '' services:tcp%s\n" "$service_group" "$port"
done < file2

# 9  
Old 03-02-2015
Unless you add some tests for e.g. empty input or an "END" string entered, you can end the loop by end-of-file, which is CTRL-D.

CTRL-C is fine, btw.
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