From 29706fe8beee8da0c1716d5d9c59413b1331a944 Mon Sep 17 00:00:00 2001
From: MAO Dongyang <suchcp@gmail.com>
Date: Wed, 15 Mar 2023 10:23:06 +0100
Subject: [PATCH] create c_pprocess

---
 file_operate/create_ps/main.c | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)
 create mode 100644 file_operate/create_ps/main.c

diff --git a/file_operate/create_ps/main.c b/file_operate/create_ps/main.c
new file mode 100644
index 0000000..70a32a0
--- /dev/null
+++ b/file_operate/create_ps/main.c
@@ -0,0 +1,22 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+int main() {
+  pid_t fpid;
+
+  fpid = fork();
+  // create child process
+  if (fpid < 0) {
+    printf("error in fork!");
+  } else if (fpid == 0) {
+    printf("I am the child process, my process id is %d\n", getpid());
+    sleep(10);
+  } else {
+    printf("I am the parent process, my process id is %d\n", getpid());
+    wait(NULL);
+    // exit(0);
+  }
+  return 0;
+}