Sponsored Content
Top Forums Shell Programming and Scripting Whats wrong in the Function ? Post 302459225 by methyl on Monday 4th of October 2010 06:22:16 AM
Old 10-04-2010
Looks like a fundamental understanding problem.

$1 and $2 within a function refer to the parameters supplied to that function. They are not the $1 and $2 parameters provided to the main script.

The convention for a function called "usage" is to just output a message telling the user how to correctly use the script. It is also conventional to "exit" the script if there is something wrong.

You would be best testing the number of parameters $# in the main flow of the script and calling a "usage" function if the number of parameters is incorrect. If you then do more validatation you then have available a general function to report the error.
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Whats wrong with my function?? <newbie>

First of all im using Bash, on a Debian-based machine. I tried to write a function that if the ls program found listed more than 25 lines I would automaticly use "ls | less". Its on another computer but if I recall it looked something like this... Note: some code may look strange because im on... (4 Replies)
Discussion started by: riwa
4 Replies

2. UNIX for Advanced & Expert Users

Whats wrong in this Script ???

PATH="/clocal/mqbrkrs/user/mqsiadm/sanjay" MAIL_RECIPIENTS="xyz@abc.com" Subject="File accessed in last minutes:" find $PATH -type f -amin -1 > temp.txt.$$ cat temp.txt.$$ | \ while read line do fuser -uV $line >> tempmail.txt done cat "$tempmail.txt" | mailx -s "$Subject"... (4 Replies)
Discussion started by: varungupta
4 Replies

3. Shell Programming and Scripting

tell me whats wrong in this?

#! /bin/bash head -5 $1 echo "remove $1 ?" read answer if then echo invalid answer elif rm $1 echo "$1 is deleted" elif then echo file is not deleted else echo "invalid answer" fi What i really want this to do is to ask to delete the file or not..it says something wrong... (1 Reply)
Discussion started by: nadman123
1 Replies

4. Shell Programming and Scripting

tell me whats wrong with this

#! /bin/bash USAGE=" | ] if then echo "$USAGE" exit 1 fi while getopts lb: OPTION do case $(OPTION)in a) echo Hi there! exit 2;; b) echo hello o) OARG=$OPTARG;; \?)echo "$USAGE" ;; exit 2;; esac done shift `expr... (1 Reply)
Discussion started by: nadman123
1 Replies

5. UNIX for Dummies Questions & Answers

Whats wrong in the script?

if then if then echo "fst argument is $1 " else if then "fst argument is $1" fi fi fi Can anyone tell me. My requirement is tht pass a string .. Check whether it contains "-". If yes then check if it... (1 Reply)
Discussion started by: nehagupta2008
1 Replies

6. UNIX for Dummies Questions & Answers

whats wrong with this?

can anyone tell me why this code doesn't work how its supposed to, its the hangman game but it doesn't play how its supposed to #!/bin/bash NoAttempts="0" livesgiven="5" LivesRemain=$livesgiven LettersAttempted="" wordfile=words numwords=0 function menu() { clear cat << menu... (1 Reply)
Discussion started by: ferrycorsten73
1 Replies

7. Homework & Coursework Questions

Whats wrong with the following

Use and complete the template provided. The entire template must be completed. If you don't, your post may be deleted! 1. The problem statement, all variables and given/known data: ls -ld htdocs drwxr-x--- 3 root root 8192 2006-11-19 10:41 htdocs How would a host administrator... (1 Reply)
Discussion started by: Larry_1
1 Replies

8. Programming

Whats wrong with my my Makefile

its right only missed \ (0 Replies)
Discussion started by: dragonpoint
0 Replies

9. UNIX for Dummies Questions & Answers

Whats wrong with this if-else

hi whats wrong in below?? CHECK=M10; if ; then echo "hello hi"; else echo "how are u hello hi"; fi I am getting error as ./test.sh: line 2: ' ./test.sh: line 2: M10: command not found ./test.sh: line 2: M10: command not found ./test.sh: line 2: M10: command not found (8 Replies)
Discussion started by: skyineyes
8 Replies

10. Shell Programming and Scripting

Python - Function print vs return - whats wrong

All, I have a basic buzz program written in python with return function. If i change return with print,it works fine but i want to know whats wrong with return statement.Can anyone help me whats wrong with this #!/usr/bin/python def div4and6(s,e): for i in range(s,e+1): if... (5 Replies)
Discussion started by: oky
5 Replies
lmfsetup(8)						      System Manager's Manual						       lmfsetup(8)

Name
       lmfsetup - License Management Facility PAK registration script

Syntax
       /etc/lmfsetup [ template ]

Description
       The  script allows you to register data supplied by a Product Authorization Key (PAK).  The script prompts you for the data associated with
       each of the fields on a PAK.  When all the data has been entered, the License Management Facility (LMF) ensures there are  entries  against
       all  the mandatory fields, and that the Checksum validates all the license data.  If the data has been entered correctly, the PAK is regis-
       tered in the License Database.  If the data has been entered incorrectly, the appropriate error message is displayed and you are given  the
       opportunity to re-enter the data.

       The template option allows you to register license data from templates in A template containing a partially complete PAK is created by some
       products as part of their installation process.	The script only prompts you for data on the fields that are empty in the template.  If the
       script cannot find the specified template in it searches the current directory.

       The  script  is	provided as an alternative to the command.  This displays a template, which includes the fields on the PAK, and invokes an
       editor so that you can add the license data to the appropriate field.  The command also allows errors to be corrected without having to re-
       enter all the data.

See Also
       lmf(8)
       Guide to Software Licensing

																       lmfsetup(8)
All times are GMT -4. The time now is 02:45 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy