diff --git a/lab2/demos/w2wc.c b/lab2/demos/w2wc.c
new file mode 100644
index 0000000..0427c72
--- /dev/null
+++ b/lab2/demos/w2wc.c
@@ -0,0 +1,51 @@
+/*
+ * This code is identical to running
+ * w | wc -w
+ * in bash
+ */
+#include <stdio.h>
+#include <unistd.h>
+
+void child(int pfd[2]) {
+    close(pfd[1]);
+    dup2(pfd[0], STDIN_FILENO);
+    close(pfd[0]);
+
+    char cmd[] = "/usr/bin/wc";
+    char *args[] = {"wc", "-w", NULL};
+    if (execve(cmd, args, NULL) == -1) {
+        perror("wc error!");
+    }
+}
+
+void parent(int pfd[2]) {
+    close(pfd[0]);
+    dup2(pfd[1], STDOUT_FILENO);
+    close(pfd[1]);
+
+    char cmd[] = "/usr/bin/w";
+    char *args[] = {"w", NULL};
+    if (execve(cmd, args, NULL) == -1) {
+        perror("w error!");
+    }
+}
+
+int main (void) {
+    int pfd[2];
+    if (pipe(pfd) < 0) {
+        perror("pipe error!");
+        _exit(1);
+    }
+
+    int pid = fork();
+    if (pid < 0) {
+        perror("fork error!");
+        _exit(1);
+    }
+
+    if (pid == 0) {  // child
+        child(pfd);
+    } else {
+        parent(pfd);
+    }
+}
diff --git a/lab2/demos/w2wc_short.c b/lab2/demos/w2wc_short.c
new file mode 100644
index 0000000..9beb6b1
--- /dev/null
+++ b/lab2/demos/w2wc_short.c
@@ -0,0 +1,40 @@
+/*
+ * This code is identical to running
+ * w | wc -w
+ * in bash
+ */
+#include <stdio.h>
+#include <unistd.h>
+
+void child(int pfd[2]) {
+    close(pfd[1]);
+    dup2(pfd[0], STDIN_FILENO);
+    close(pfd[0]);
+
+    char cmd[] = "/usr/bin/wc";
+    char *args[] = {"wc", "-w", NULL};
+    execve(cmd, args, NULL);
+}
+
+void parent(int pfd[2]) {
+    close(pfd[0]);
+    dup2(pfd[1], STDOUT_FILENO);
+    close(pfd[1]);
+
+    char cmd[] = "/usr/bin/w";
+    char *args[] = {"wc", NULL};
+    execve(cmd, args, NULL);
+}
+
+int main (void) {
+    int pfd[2];
+    pipe(pfd);
+
+    int pid = fork();
+
+    if (pid == 0) {
+        child(pfd);
+    } else {
+        parent(pfd);
+    }
+}