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Top Forums UNIX for Dummies Questions & Answers calculator Post 302276404 by jdougy on Tuesday 13th of January 2009 03:48:19 PM
Old 01-13-2009
calculator

hi, im new to the unix system and scripting and was wondering if anyone could help me with this problem iv been havin... i want the system to:
1. ask me for a number
2. ask me for a command to use on that number (* + - /)
3. ask me for another number
4. then ask me for another command, if the command is = then i want the script to end. if its another command then i want it to continue in a loop from step 2. so basically the script wont end until the = sign is used and continue to add numbers into the equation!

any help would be much appreciated.

heres my attempt...

#!/bin/sh
echo "please enter number"
read num1
echo "please enter an operation"
read operation
echo "please enter another number"
read num2
let result=$num1$operation$num2
echo "$result"
exit 0

i dont no if im even on the rite lines?!

thanks
 

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gnome-calculator(1)						   User Commands					       gnome-calculator(1)

NAME
gnome-calculator, gcalctool - perform basic, financial, and scientific calculations SYNOPSIS
gnome-calculator [-a accuracy] [-D] [-E] [gnome-std-options] DESCRIPTION
The Calculator application is multifunctional and can handle different types of mathematical approaches. Calculator has the following modes: Basic Mode Provides standard calculator functions. You can store numbers in 10 different memory registers, and easily retrieve and replace the numbers in the memory registers. Basic Mode is the default mode. You can use all of the Basic Mode functions in each of the other modes. Financial Mode Provides several complex financial functions. Scientific Mode Provides many additional mathematical functions, including trigonometric and logical functions. You can also store your own functions and constants, when you use Scientific Mode. EXTENDED DESCRIPTION
On startup, Calculator uses the following configuration resources stored in a GConf database. Resource: /schemes/apps/gcalctool/accuracy Values: Accuracy value Description: The number of digits displayed after the numeric point. This value must be in the range 0 to 9. Resource: /schemes/apps/gcalctool/base Values: Numeric Base Description: The initial numeric base. Valid values are "BIN" (binary), "OCT" (octal), "DEC" (deci- mal), and "HEX" (hexadecimal). Resource: /schemes/apps/gcalctool/display Values: Display mode Description: The initial display mode. Valid values are "ENG" (engineering), "FIX" (fixed-point), and SCI" (scientific). Resource: /schemes/apps/gcalctool/mode Values: Mode Description: The initial calculator mode. Valid values are "BASIC", "FINANCIAL", and "SCIENTIFIC". Resource: /schemes/apps/gcalctool/showzeroes Values: true, false (true) Description: Whether to show trailing zeroes after the numeric point in the display value. Resource: /schemes/apps/gcalctool/showregisters Values: true, false (true) Description: Whether to display the memory register window when Calculator starts. Resource: /schemes/apps/gcalctool/trigtype Values: Trig. type Description: The initial trigonometric type. Valid values are "DEG" (degrees), "GRAD" (grads), and "RAD" (radians). Any constants or functions that the user defines are also stored in the GConf database. OPTIONS
The following options are supported: -a accuracy Specifies the number of digits displayed after the numeric point. This value must be in the range 0 to 9. -D Enable debug mode. -E Enable debug mode in the multiple-precision arithmetic package. gnome-std-options Standard options available for use with most GNOME applications. See gnome-std-options(5) for more information. EXAMPLES
Example 1: Launching Calculator example% gnome-calculator EXIT STATUS
The following exit values are returned: 0 Application exited successfully >0 Application exited with failure FILES
The following files are used by this application: /usr/bin/gnome-calculator Executable for Calculator. ~/.gcalctoolrc User-specific resources for customizing the appearance and color of Calculator. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWgnome-calculator | +-----------------------------+-----------------------------+ |Interface stability |External | +-----------------------------+-----------------------------+ SEE ALSO
Calculator Manual Latest version of the GNOME Desktop User Guide for your platform. gnome-std-options(5) NOTES
Written by Glynn Foster and Rich Burridge, Sun Microsystems Inc., 2003. SunOS 5.10 1 Oct 2003 gnome-calculator(1)
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