Learning AWK Programming

The lshift (val, count) function

The Ishift function returns the value of val, shifted to the left side by the count number of bits specified in the argument. 0s are shifted in from the right side. For example, let us left shift, or lshift, the decimal 5 once to illustrate how the lshift() function works:

5 = 101

lshift once = 1010, which is decimal 10

The following example shows how the lshift() functions work:

$ vi lshift.awkBEGIN    {    num1 = 5    count =1     result = lshift(num1,count)    printf "lshift(%d,%d) = %d\n", num1, count, result

}$ awk -f lshift.awk

The output of the execution of the previous code is as follows:

lshift(5,1) = 10