A simple terminal written in C, nothing really special yet.

main.c

@@ -0,0 +1,101 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/wait.h>
+
+#define INPUT_SIZE 1024
+
+const double VERSION = 0.1;
+
+void execute(char **args) {
+    pid_t pid = fork();
+    if (pid == 0) {
+        execvp(args[0], args);  
+        perror("execvp failed");  
+        exit(EXIT_FAILURE);
+    } else if (pid > 0) {  
+        wait(NULL);  
+    } else {
+        perror("fork failed");
+    }
+}
+
+void parse_input(char *input, char **args) {
+    char *token = strtok(input, " ");
+    int i = 0;
+    while (token != NULL) {
+        args[i++] = token;
+        token = strtok(NULL, " ");
+    }
+    args[i] = NULL;
+}
+
+char* getCWD() {
+    char *cwd = malloc(1024);
+
+    if (cwd == NULL) {
+        perror("Malloc failed");
+        return NULL;
+    }
+
+    if (getcwd(cwd, 1024) != NULL) {
+        return cwd;
+    } else {
+        perror("Could not get current working directory");
+        free(cwd);
+        return NULL;
+    }
+}
+
+int main() {
+    char input[INPUT_SIZE];
+    char *args[100];
+    char user[100] = "defaultusr";
+
+    while (1) {
+        char *cwd = getCWD();  // current working directory
+
+        if (cwd != NULL) {
+            printf("[cShell-%s] %s $> ", user, cwd);
+        } else {
+            printf("[cShell-%s] $> ", user);
+        }
+
+        if (!fgets(input, sizeof(input), stdin)) {
+            break;
+        }
+
+        input[strcspn(input, "\n")] = '\0';  // Remove trailing newline
+
+        // built in command checks
+        if (strcmp("exit", input) == 0) {
+            exit(0);
+        } else if (strcmp("help", input) == 0) {
+            printf("Welcome to cShell, my simple terminal written in C\nBuilt-in commands:\n\texit\n\thelp\n\tcd\n\tversion\n");
+            continue;
+        } else if (strcmp("version", input) == 0) {
+            printf("cShell version: %f\n", VERSION);
+            continue;
+        }
+
+        parse_input(input, args);
+
+        // Handle 'cd' built-in command
+        if (strcmp("cd", args[0]) == 0) {
+            if (args[1] == NULL) {
+                fprintf(stderr, "Missing argument for command \"cd\"\n");
+            } else {
+                if (chdir(args[1]) != 0) {
+                    perror("chdir failed");
+                }
+            }
+            continue;
+        }
+
+        // If not a built-in command, execute the external command
+        execute(args);
+    }
+
+    return 0;
+}