Shell Floor Integer Division

3 replies discussion started by.

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. Val1 6000 val2 5000 res val1 val2 1 2 round to 2 please help. Floor division means the will always take the floor or the lower number. 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. Ex floor 2 9 2 floor 2 1 2 floor 2 0 2 floor 2 0 2 floor 2 1 3 floor 2 9. Though this method can be slow as expr is a binary not a shell builtin. The expr command can only work with integer values.

Division modulus to get remainder. The legacy way to do math calculations with integer and only integer has been for a long time to use the expr command line. If you imagine a room where 3 is on the ceiling and 2 is on the floor. 2 5 would fit in the middle.

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. So to perform arithmetic operations we use the expr command. It will fork a new process which is not ideal in a large for loop.

Integer division without decimal numbers modulus division gives only remainder exponentiation x to the power y performing addition and subtraction in bash scripts. For floating point numbers we use the bc command. 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.