ksh prompt yes/no question Post: 302908959

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Top Forums Shell Programming and Scripting ksh prompt yes/no question Post 302908959 by wisecracker on Saturday 12th of July 2014 04:05:32 AM

07-12-2014

Registered User

You want to default to YES, although I would personally do it the other way and force the user to enter a 'Y or y'.
However how about using the _wildcard_ '*'...
(On CygWin at the moment and don't have ksh available so using sh instead...)

Code:

#!/bin/sh
echo "is this SQL query ? Y/N"
read  answer
case $answer in
        N|n)
                echo "got a 'no'"
                ;;
        *)
                echo "got a positive answer"
                ;;
esac
exit 0

Results on CygWin...

Code:

AMIGA:~> chmod 755 /tmp/yn.sh
AMIGA:~> cd /tmp
AMIGA:/tmp> dos2unix yn.sh
dos2unix: converting file yn.sh to Unix format ...
AMIGA:/tmp> ./yn.sh
is this SQL query ? Y/N
slkflksflksldkflskflksjf
got a positive answer
AMIGA:/tmp> ./yn.sh
is this SQL query ? Y/N

got a positive answer
AMIGA:/tmp> ./yn.sh
is this SQL query ? Y/N
Y
got a positive answer
AMIGA:/tmp> ./yn.sh
is this SQL query ? Y/N
y
got a positive answer
AMIGA:/tmp> ./yn.sh
is this SQL query ? Y/N
N
got a 'no'
AMIGA:/tmp> ./yn.sh
is this SQL query ? Y/N
n
got a 'no'
AMIGA:/tmp> _

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LEARN ABOUT MINIX

suspend

suspend(1)                                                         User Commands                                                        suspend(1)

NAME

       suspend - shell built-in function to halt the current shell

SYNOPSIS

   sh
       suspend

   csh
       suspend

   ksh
       suspend

DESCRIPTION

   sh
       Stops the execution of the current shell (but not if it is the login shell).

   csh
       Stop the shell in its tracks, much as if it had been sent a stop signal with ^Z. This is most often used to stop shells started by su.

   ksh
       Stops the execution of the current shell (but not if it is the login shell).

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE         |      ATTRIBUTE VALUE        |
       +-----------------------------+-----------------------------+
       |Availability                 |SUNWcsu                      |
       +-----------------------------+-----------------------------+

SEE ALSO

       csh(1), kill(1), ksh(1), sh(1), su(1M), attributes(5)

SunOS 5.10                                                          15 Apr 1994                                                         suspend(1)