In the command line enter the script file
/home/etc/mycalc or /home/etc/mycalc 1 + 1 . My script file should identify if the data needed to do the calculating is present (mycalc 1 + 1)
or if it needs to ask for input (mycalc).
Play around with positional parameters if you want to do such exercises. Here's a sample program to get you started.
Quote:
Originally Posted by herb bertz
Also can anyone tell me how to automaticly get line numbers put in the script so when an error comes up it is easy to find the line without counting the lines?
Open the program in vi vi test.sh. In the command mode (press ESC key, if you're unsure which mode you're currently in) and type :set nu. This will display the line numbers without affecting the program functionality. To remove the line numbers type this in command mode :set nonu. And I hope you're using vi for writing your scripts and not some GUI editor.
Hey can anyone tell me the korn script code to implement an interactive integer calculator using the shell's built in arithemetic expression evaluation (2 Replies)
I am pretty new to the Unix word, and have created a working calculator script. I have one problem. It doesn't use any decimals, it rounds off to the nearest whole number.
1 #!/bin/ksh
2 while true; do
3 echo -n "Enter the first integer: "; read IN1
4 test... (2 Replies)
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... (2 Replies)
Hello, I'm relatively new to using bc so I could use some help. In this script im working on I want to have the bc function to calculate float numbers for imagemagicks convert charcoal. Below is what I'm talking about. There are no syntax errors but when it outputs the users frames for example 0-10... (2 Replies)
Hi Guys,
I found this code in net.. it is working fine..
But can anybody explain me the sed statement used in the code..
echo "Enter the expression:\c"
read express
eval echo "$express"|sed 's/^/'$precision' \
/'|bc -l|\
sed -n '1,${
/syntax/!{
}
... (2 Replies)
I'm having some trouble implementing a basic calculator using command line options. The script is supposed to take (multiple) arguments -a,-d,-m,-s for addition, multiplication, division, and subtraction. I'm pretty sure I know how to parse through the options with getopt(), but I have no idea... (17 Replies)
Hi, I am trying to make a maths calculator that:
1. Prompts the user for a number.
2. Prompts the user for an operation (add, subtract, divide or multiply)
3. Prompts the user for a number.
4. Prompts the user for another operation (same as above) OR the option to get the result for the... (4 Replies)
I am trying to make a calculator. The user Enters number 1, chooses and operation, enters number 2, then chooses another operation or for the answer to be displayed.
eg. 1 + 1 = or 1 + 1 + 2 + 1 =
Both of these should be possible.
#!/bin/bash
read -p "what's the first number? " n1... (3 Replies)
Using the C Shell, I'm building a script that will compute simple mathematical computations (addition, subtraction, multiplication, division). The user will enter two integers (operands) on the command line separated by the operation (operator) they wish to perform.
Example of the command line... (7 Replies)
ADE is a UNIX environment for the ancient AMIGA A1200. By default this does NOT have the 'bc' command line calculator.
Although I did a DEMO code to create a C source and compile it under python 1.4.0 and ADE using ksh88 and the gcc of the day, I decided to create this baby that requires no Python... (2 Replies)