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:
Create a calculator application in your home folder called itncacl that will perform the following applications:
Add two numbers
Subtract two numbers
Multiply two numbers
Divide two numbers
You cannot divide by zero, so create a condition that checks for and prevents a that condition.
2. Relevant commands, code, scripts, algorithms:
3. The attempts at a solution (include all code and scripts):
My only question is how do I add to my code so that when I try to divide by zero it will show Cannot divide by zero or invalid? Thanks!
4. Complete Name of School (University), City (State), Country, Name of Professor, and Course Number (Link to Course):
Northern Virginia Comm College, VA, USA, Saleh, ITN171
Note: Without school/professor/course information, you will be banned if you post here! You must complete the entire template (not just parts of it).
Last edited by Scott; 11-20-2017 at 05:07 PM..
Reason: Please use code tags
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)
I have 2 questions.
1) Is there a means of directing output to a file (">") while making it still output to the console?
I have a script that calls another lengthy script.
2) I can direct the output of the lengthy script and grep it for the words "good" or "bad" to know if I need the run... (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)
hi,
I have some problems in my simple script about the redirect echo stdout command inside a condition. Why is the echo command inside the elif still execute in the else command
Here are my simple script
After check on the two diff output the echo stdout redirect is present in two diff... (3 Replies)
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:
Script a simple calculator. In the command line enter the script file
/home/etc/mycalc or /home/etc/mycalc 1 +... (6 Replies)
HI
My doubt may be basic one but I need to get it clarified..
When i use "if" condition that checks for many AND, OR logical conditions
like
if ]; then
return 0
fi
Even the if condition fails it returns as zero.. Any clue..
But if i add else condition like
if ]; ... (2 Replies)
I wrote a code to find codons in a DNA string. The only problem I have is how do I make the code only work for a file with DNA. This means the file only has the characters a,c,g,t and no white space characters. (3 Replies)
So have I got this :
#!/bin/bash
clear
echo "Enter the first number:"
read n1
echo "Choose an operation:"
echo "1. add"
echo "2. subtract"
echo "3. multiply"
echo "4. divide"
read opr
echo "Enter the second number:"
read n2 (1 Reply)
Discussion started by: mugiboya
1 Replies
LEARN ABOUT PHP
oci_field_name
OCI_FIELD_NAME(3)OCI_FIELD_NAME(3)oci_field_name - Returns the name of a field from the statementSYNOPSIS
string oci_field_name (resource $statement, mixed $field)
DESCRIPTION
Returns the name of the $field.
PARAMETERS
o $statement
- A valid OCI statement identifier.
o $field
- Can be the field's index (1-based) or name.
RETURN VALUES
Returns the name as a string, or FALSE on errors.
EXAMPLES
Example #1
oci_field_name(3) example
<?php
// Create the table with:
// CREATE TABLE mytab (number_col NUMBER, varchar2_col varchar2(1),
// clob_col CLOB, date_col DATE);
$conn = oci_connect("hr", "hrpwd", "localhost/XE");
if (!$conn) {
$m = oci_error();
trigger_error(htmlentities($m['message']), E_USER_ERROR);
}
$stid = oci_parse($conn, "SELECT * FROM mytab");
oci_execute($stid, OCI_DESCRIBE_ONLY); // Use OCI_DESCRIBE_ONLY if not fetching rows
echo "<table border="1">
";
echo "<tr>";
echo "<th>Name</th>";
echo "<th>Type</th>";
echo "<th>Length</th>";
echo "</tr>
";
$ncols = oci_num_fields($stid);
for ($i = 1; $i <= $ncols; $i++) {
$column_name = oci_field_name($stid, $i);
$column_type = oci_field_type($stid, $i);
echo "<tr>";
echo "<td>$column_name</td>";
echo "<td>$column_type</td>";
echo "</tr>
";
}
echo "</table>
";
// Outputs:
// Name Type
// NUMBER_COL NUMBER
// VARCHAR2_COL VARCHAR2
// CLOB_COL CLOB
// DATE_COL DATE
oci_free_statement($stid);
oci_close($conn);
?>
NOTES
Note
In PHP versions before 5.0.0 you must use ocicolumnname(3) instead. This name still can be used, it was left as alias of
oci_field_name(3) for downwards compatability. This, however, is deprecated and not recommended.
SEE ALSO oci_num_fields(3), oci_field_type(3), oci_field_size(3).
PHP Documentation Group OCI_FIELD_NAME(3)