input from command line in bash

[kclark at elbrysnetworks.com (Kevin D. Clark)]

Stephen Adler <adler at stephenadler.com> writes:

> Basically I want to write a shell script which askes,
> "Are you sure you want to proceed? [N/y] " and then acts according to user
> input at the command line.


    getyN() {
    	while	echo -n "${@}"' (y/N) '>&2
    	do	read yn rest
    		case $yn in
    		[yY])	return 0			;;
    		*)	return 1
    		esac
    	done
    }
    
    if getyN "Are you your you want to proceed?" ; then
      echo launching missles now
    else
      echo "let's watch a movie instead"
    fi
    
    
(small Unix portability nit:  "echo -n" is not portable)
    
  

Regards,

--kevin
-- 
GnuPG ID: B280F24E                     And the madness of the crowd
alumni.unh.edu!kdc                     Is an epileptic fit
                                       -- Tom Waits


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