add random stuffs

closest_path_command.c

@@ -0,0 +1,32 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <limits.h>
+#include "levenshtein.h"
+#include "cstring_node.h"
+#include "exit_error.h"
+
+int main(int argc, char** argv) {
+    if (argc != 2) exit_error("Usage: %s <command>\n", argv[0]);
+
+    cstring_node* commands = get_path_commands();
+    if (!commands) exit_error("No commands found.\n");
+
+    char* closest = NULL;
+    int min_distance = INT_MAX;
+    
+    for (cstring_node* curr = commands; curr; curr = curr->next) {
+        int distance = levenshtein(argv[1], curr->name);
+        if (distance < min_distance) {
+            min_distance = distance;
+            free(closest);
+            closest = strdup(curr->name);
+        }
+    }
+
+    printf("Did you mean '%s'?\n", closest);
+
+    free(closest);
+    free_commands(commands);
+    return 0;
+}