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Full Discussion: getopts question
Top Forums Shell Programming and Scripting getopts question Post 302273782 by cfajohnson on Monday 5th of January 2009 10:52:44 PM
Old 01-05-2009
Quote:
Originally Posted by rookieuxixsa
I am trying to set up prompts when you don't enter the right information or dont enter the information at all, when executing a script. Below is the question that i am asking and i am not sure how to set up the if statements to make sure that the user enters the name, cpu's, memory and ip. I was told that getopts with a cease statement might be usefull, but im not sure how to apply it. Any help would be greatly appreciated...
Please put code inside [code] tags.
Quote:
Code:
NAME=$1
NCPUS=$2
MEMORY=$3
IP=$4
MACHINENAME=`hostname`
MASTERHOST=svvnyc702
 
echo "Do you wish to proceed with the creation of UAT ZONE zone-${NAME}, CPU's ${NCPUS}, MEMORY ${MEMORY}, IP ${IP}
<y or n> ? \c"

Code:
while [ -z "$name" ] ## I recommend using lowercase variable names
do
  printf "Enter NAME: "
  read name
done

while [ -z "$ncpus" ]
do
  printf "Enter number of CPUs: "
  read ncpus
done

while [ -z "$memory" ]
do
  printf "Enter memory: "
  read memory
done

Quote:
Code:
read WISH
echo
if [ $WISH = "n" ] ; then
  echo "You chose no, good bye"
  exit
fi
if [ ! $WISH = "y" ] ; then
  echo in vaild optin g - exiting
  exit
fi


Code:
read wish
case $wish in
   n) echo "You chose no, good bye"
      exit ;;
esac

 

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COLORS(3)						   libbash colors Library Manual						 COLORS(3)

NAME
colors -- libbash library for setting tty colors. SYNOPSIS
colorSet <color> colorReset colorPrint [<indent>] <color> <text> colorPrintN [<indent>] <color> <text> DESCRIPTION
General colors is a collection of functions that make it very easy to put colored text on tty. The function list: colorSet Sets the color of the prints to the tty to COLOR colorReset Resets current tty color back to normal colorPrint Prints TEXT in the color COLOR indented by INDENT (without adding a newline) colorPrintN The same as colorPrint, but trailing newline is added Detailed interface description follows. Available colors: Green Red Yellow White The color parameter is non-case-sensitive (i.e. RED, red, ReD, and all the other forms are valid and are the same as Red). FUNCTIONS DESCRIPTIONS
colorSet <color> Sets the current printing color to color. colorReset Resets current tty color back to normal. colorPrint [<indent>] <color> Prints text using the color color indented by indent (without adding a newline). Parameters: <indent> The column to move to before start printing. This parameter is optional. If ommitted - start output from current cursor position. <color> The color to use. <color> The text to print. colorPrintN [<indent>] <color> The same as colorPrint, except a trailing newline is added. EXAMPLES
Printing a green 'Hello World' with a newline: Using colorSet: $ colorSet green $ echo 'Hello World' $ colorReset Using colorPrint: $ colorPrint 'Hello World'; echo Using colorPrintN: $ colorPrintN 'Hello World' AUTHORS
Hai Zaar <haizaar@haizaar.com> Gil Ran <gil@ran4.net> SEE ALSO
ldbash(1), libbash(1) Linux Epoch Linux
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