#include <stdio.h> #include <stdlib.h> #include <sys/ioctl.h> #include <unistd.h> #include <wordexp.h> int main() { // get terminal size using ioctl get win size (TIOCGWINSZ) in C struct winsize ws; if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &ws) < 0) { perror("ioctl"); exit(1); } …

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c getopt example #include <getopt.h> #include <stdio.h> #include <stdlib.h> void parse_options(int argc, char *argv[]) { static struct option long_options[] = { {"version", no_argument, 0, 'v'}, {"quiet", no_argument, 0, 'q'}, {"wait", required_argument, 0, …

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