Loop Mania Post: 302179896

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Top Forums Shell Programming and Scripting Loop Mania Post 302179896 by oswazi on Saturday 29th of March 2008 12:13:00 AM

03-29-2008

Registered User

Loop Mania

hello all, here is my first post since i am in need of figuring out what my exact problem is. Here is what i'm trying to do:

run a script to check and see if a user exists on the system and if not sends an error message and says "try again or type exit to quit". If the user types exit the program will terminate. If the user does exist on the system (all users are located in /etc/passwd), the program will finger the user and returns it the information to the screen. Once the successful user was found the program will exit normally. If the user is not found the program will loop until the user either types exit or successfully enters a user name.

Code:

#!/bin/bash
			error_fn()
{
echo user entered $username
echo try again or type exit to quit
read answer
case $answer in 
exit|Exit|EXIT) exit 20
;;
*)
echo please enter a user to find
read $usertry
while grep $usertry /etc/passwd
                do
		 finger $usertry 
		 exit 1
done
esac
}

echo "HELLO AND WELCOME TO YOUR USER SEARCHING UTILITY"
echo please enter the name of the user you wish to find
read username
echo "you entered $username"
	if grep $username /etc/passwd
		then finger $username 	
			else error_fn
fi

Script:

1st part) it will successfully grep users that are in /etc/passwd and finger them.

2nd part) However, if i type in a user that is not there and get taken to the error function that starts, it will ask me to enter exit or try another username entry. But when a user that exists is entered it will repeat the line and not finger and exit.

3rd part) last but not least when i continually enter in a username that doesnt exist it doesnt loop.

oswazi

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LEARN ABOUT OSF1

uudemon.cleanu

uudemon(4)						     Kernel Interfaces Manual							uudemon(4)

NAME

       uudemon.admin,  uudemon.cleanu,	uudemon.hour,  uudemon.poll  -	Administrative shell scripts for polling remote systems, cleaning up spool
       directories, reporting status to the system administrator, and routine invocations of the uuxqt and uusched daemons

SYNOPSIS

       These shell scripts reside in the following directory:
	  /usr/lib/uucp

DESCRIPTION

       All the scripts can be run from the command line or can be run automatically by the cron daemon. To automatically run the  scripts,  remove
       the comment character (#) from the beginning of the relevant line in the /var/spool/cron/crontabs/uucp file.

       This  script  reports  status  to  the system administrator. It issues the uustat command to find out the status of uucp jobs. It mails the
       results to the uucp login ID. The script may be modified to send mail to any login ID such as the uucp administrative login ID  (uucpa)	or
       root.  This script cleans up the /var/spool/uucp and /var/spool/uucppublic directories by running the uucleanup command. The uucleanup com-
       mand is run with the following parameters: -C7, -D7, X2, -o2, -W1.  This script runs the uusched and uuxqt daemons in the background.  This
       script  polls  the  systems  listed  in	the  /usr/lib/uucp/Poll file.  The uudemon.poll script should be scheduled before the uudemon.hour
       script. This allows uudemon.poll to create any command files before cron runs the uudemon.hour script.

FILES

       Contains the uudemon.admin, uudemon.cleanu, uudemon.hour and uudemon.poll files.  Contains the uucp file.

RELATED INFORMATION

       Commands: cron(8), uucleanup(8), uusched(8), uuxqt(1)

       Files: /usr/lib/uucp delim off

																	uudemon(4)