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Full Discussion: argument count
Top Forums Shell Programming and Scripting argument count Post 302347070 by javajynx on Monday 24th of August 2009 08:37:07 PM
Old 08-24-2009
argument count
I'm writing a program that takes input from the user of a phone number or a name then either tells them if that entry doesn't exist in a text document or returns the entry if it does exist. But if they enter a name AND number it either returns the entry if it exists or adds it to the document.
To do this involves lots of if statements etcetc but to start I need to know how to tell the program if the user has only put in a number or name or if they've put in both name and number.

Long rant short is there a statement that tests if 1 or two arguments have been inputted?
would the following work?
Code:
if [ $1$2 ]
#test for number and name in document
elif [ $1 ] 
#test if its a valid number or name then test if it's in document

 

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LEARN ABOUT OSF1

phones

phones(4)						     Kernel Interfaces Manual							 phones(4)

NAME

       phones - File containing the remote host phone number database

SYNOPSIS

       /etc/phones

       The /etc/phones file contains the system-wide private phone numbers for the tip(1) program.

DESCRIPTION

       This file is normally unreadable, and so may contain privileged information.  The format of the file is a series of lines of the form: sys-
       temname	 phone-number

       where systemname is defined in the /etc/remote file and phone-number is the system phone number terminated only by a comma or by the end of
       the line.  Only one phone number per line is permitted.	However, if more than one line in the file contains the same system name, tip will
       attempt to dial each one in turn, until it establishes a connection.

EXAMPLES

       The following example shows the entry in /etc/phones for the system, zeus: zeus		    9=555-9898

       In this example, the = sign (or an asterisk) forces the autocall units to pause and wait for a second dial  tone,  when	going  through	an
       exchange.  The = is required by the DF02-AC (an asterisk would be required by the BIZCOMP 1030).

RELATED INFORMATION

       Commands: tip(1).

       Files: remote(4).  delim off

																	 phones(4)
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