Shell Floor Integer Division

Hello experts is there any inbuild floor function to do floor func in mathmetics in awk script like in floor func in c.

Shell floor integer division. Additon of 10 and 4 is 14 subtraction of 10 and 4 is 6 multiplication of 10 and 4 is 40 division of 10 and 4 is 2. Let s create a bash script named addition sh that will simply add two file sizes in bytes and display the output. In shell script all variables hold string value even if they are numbers. I want to perform the below division operation in shell script and round the value.

For example and while. In mathematics and computer science the floor function is the function that takes as input a real number and gives as output the greatest integer less than or equal to denoted or similarly the ceiling function maps to the least integer greater than or equal to denoted or. Though this method can be slow as expr is a binary not a shell builtin. It will fork a new process which is not ideal in a large for loop.

3 replies discussion started by. So to perform arithmetic operations we use the expr command. For floating point numbers we use the bc command. 2 5 would fit in the middle.

Floor division means the will always take the floor or the lower number. The legacy way to do math calculations with integer and only integer has been for a long time to use the expr command line. Doing math in bash with integer using the expr command line. As you can see above that the result of division must be 2 5 but we are getting 2.

The expr command can only work with integer values. If you imagine a room where 3 is on the ceiling and 2 is on the floor. Val1 6000 val2 5000 res val1 val2 1 2 round to 2 please help. It is because double parenthesis is suitable for integer arithmetic operations.