03-17-2016
they will serve as input to another downstream process.
In your solution, you've just checked the value of two consecutive column positions starting from position 4 against any numeric values between 0 and 9, but the requirement is completely different, as the data in these two positions will have discrete values like "26", "31", "24" or "78".
How to achieve this without using AWK?
Regards.
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LEARN ABOUT FREEBSD
wcwidth
WCWIDTH(3) BSD Library Functions Manual WCWIDTH(3)
NAME
wcwidth -- number of column positions of a wide-character code
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS
#include <wchar.h>
int
wcwidth(wchar_t wc);
DESCRIPTION
The wcwidth() function determines the number of column positions required to display the wide character wc.
RETURN VALUES
The wcwidth() function returns 0 if the wc argument is a null wide character (L'