topic Re: Script question in Operating System - HP-UX

Script question

Rob Johnson_3 — Thu, 24 May 2007 06:21:53 GMT

How do I work with a command in a script that prompts for a Yes or No?

This is the command that waits for user input-
johnsonr@nmsccm01 > /opt/CSCOpx/campus/bin/reinitdb.pl
This will erase all data from the database. Are you sure [y/n] ?

I want to answer y in the script below. How can I accomplish this?
****************************************
#!/bin/sh

#set date variables
my_yr=`date +%y`
my_mon=`date +%b`
my_day=`date +%d`
my_hr=`date +%H`
my_min=`date +M`

my_date="$my_yr$my_mon$my_day"

#make backup of the ANIServer.properties file
cp /opt/CSCOpx/campus/etc/cwsi/ANIServer.properties /opt/CSCOpx/campus/etc/cwsi/ANIServer.properties.23May07

#copy new ANIServer.properties file
cp /tmp/ANIServer.new /opt/CSCOpx/campus/etc/cwsi/ANIServer.properties

#Reinitialize the ANI Database
/opt/CSCOpx/campus/bin/reinitdb.pl
***********************************************

Re: Script question

Steven E. Protter — Thu, 24 May 2007 06:30:43 GMT

Shalom

snippet

echo "Do you want to proceed y/n "
read proceed

if [ "$proceed" == "y" ]
then
echo "delete data
# delete data
else
echo "doing nothing, have a nice day"
fi

SEP

Re: Script question

Hemmetter — Thu, 24 May 2007 06:54:56 GMT

Hi Rob,

two ways:
first:
# echo y | /opt/CSCOpx/campus/bin/reinitdb.pl

second:
# /opt/CSCOpx/campus/bin/reinitdb.pl <y
EOC

Both give "y" to the program so it can continue.

rgds
HGH

Re: Script question

Dennis Handly — Fri, 25 May 2007 01:01:54 GMT

In regards to both SEP's and HGH's solutions, you may want to check to see if the script is interactive, and then not ask.

You can use tty(1):
$ if tty -s; then echo it is a tty; fi