Multiple strings, Truncate line at 80 characters

Question

I\'m new to awk and sed, and I\'m looking for a way to truncate a line at 80 characters, but I\'m printing several strings in that line using printf. The last two strings are th

Answer 1

How about a C version?

#include 
int maxline = 80;
int main(int argc, char* argv[])
{
    char line[2048];
    if ((argc>1) && (atoi(argv[1]) > 0)) {
        maxline = atoi(argv[1]);
    }
    while (fgets(line, sizeof(line), stdin)) {
        line[maxline] = '\0';
        printf("%s\n", line);
    }
}