diff --git a/shell.c b/shell.c
index ab04e7e..9e1bb12 100644
--- a/shell.c
+++ b/shell.c
@@ -1,20 +1,26 @@
-// PID: 9DigitPidNoSpacesOrDashes
+// PID: 730677144
 // I pledge the COMP 211 honor code.
 
 // All necessary libraries are included in shell.h
 #include "shell.h"
 
 void alloc_mem_for_argv(command_t* p_cmd) {
-    // TODO:
+    p_cmd->argv = (char**)malloc((p_cmd->argc + 1) * sizeof(char*));
+    for (int i = 0; i < p_cmd->argc; i++) {
+        p_cmd->argv[i] = (char*)malloc(MAX_ARG_LEN * sizeof(char));
+    }
+
+    p_cmd->argv[p_cmd->argc] = NULL;
 }
 
 void cleanup(command_t* p_cmd) {
-    // TODO:
+    for (int i = 0; i < p_cmd->argc; i++) {
+        free(p_cmd->argv[i]);
+        p_cmd->argv[i] = NULL;
+    }
 }
 
-void parse(char* line, command_t* p_cmd) {
-    // TODO:
-}
+void parse(char* line, command_t* p_cmd) {}
 
 bool find_full_path(command_t* p_cmd) {
     // TODO: