Bashscripts.org

#!/bin/bash

cat << MENU
Select which NIC to configure:
1 - eth0
2 - eth1
MENU

read NIC

case "$NIC" in

"1" )
echo -e "Are you sure you want to configure eth0? (y/n)? \c"
read answer
  if [ "$answer" = y ] ; then
    echo "Fill in the following questions:"
    #blah blah blah...I'll grab their responses and input them accordingly into ifcfg-eth0
  else
    echo "Let's start over."
    #this is where I need to redirect it back to the first question
  fi
;;

"2" )
echo -e "Are you sure you want to configure eth1? (y/n)? \c"
read answer
  if [ "$answer" = y ] ; then
    echo "Fill in the following questions:"
    #blah blah blah...I'll grab their responses and input them accordingly into ifcfg-eth1
  else
    echo "Let's start over."
    #this is where I need to redirect it back to the first question
  fi
;;

esac

exit

#!/bin/bash -e

flag=1
while (($flag))
   do
      read x
      echo $x
      if [ "$x" = "quit" ];then
         flag=0
      fi
   done

#!/bin/bash

## Let's enclose the menu prompt in a function!
PROMPT () {  ##This line begins the function
cat << MENU
Select which NIC to configure:
1 - eth0
2 - eth1
MENU

read NIC
}  ## This bracket closes the function


## Here's where we run the function the first time
PROMPT

## Now we do a loop, similar to Keith's while loop
until [ "$answer" = "y" ]; do

  case "$NIC" in

    "1" )
    echo -e "Are you sure you want to configure eth0? (y/n)? \c "
    read answer
    if [ "$answer" = y ] ; then
      echo "Fill in the following questions:"
      #blah blah blah...I'll grab their responses and input them accordingly into ifcfg-eth0
    else
      echo "Let's start over."
      #this is where I need to redirect it back to the first question
      PROMPT  ## This displays the menu again
    fi
    ;;

    "2" )
    echo -e "Are you sure you want to configure eth1? (y/n)? \c "
    read answer
    if [ "$answer" = y ] ; then
      echo "Fill in the following questions:"
      #blah blah blah...I'll grab their responses and input them accordingly into ifcfg-eth1
    else
      echo "Let's start over."
      #this is where I need to redirect it back to the first question
      PROMPT  ## This displays the menu again
    fi
    ;;

  esac
done  ## This ends the 'until' loop

exit

echo -e "Are you sure you want to configure eth1? (y/n)? \c"
read answer

read -p "Are you sure you want to configure eth${NIC}? (y/n)? " answer

menu ()
{
echo "     1)     Do thing #1"
echo "     2)     Do thing #"
echo "     3)     Do thing #"
echo "     4)     Do thing #"
echo "     5)     Do thing #"
echo "     6)     Do thing #"
echo "                     ---------"
echo "     0)     Exit"
echo "                     ---------"
echo " ";
echo -n "     Please choose one of the options: " ; read option
   case $option in
      "1")   function_one; # you can call other functions here
         ;;
      "2")   ls -lah; # you can run a command here
         ;;
      "3")   echo "hello"; # you can print something if you want
         ;;
      "4")   function_four;
         ;;
      "5")   function five; # normally I call addition functions from the case statement
         ;;
      "6")   function_six;
         ;;
      "0")   exit 0;  #this exits
         ;;
        "")     menu ;
         ;;
      *)   echo "     That choice was invalid!! Hit any key to try again";read temp;menu
         ;;
   esac
}

menu; # calling the above function