diff --git a/.gitignore b/.gitignore
index c6127b3..9f57ee1 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,6 +1,6 @@
 # Prerequisites
 *.d
-
+build/
 # Object files
 *.o
 *.ko
diff --git a/src/false.c b/src/false.c
index 2c99a52..ccbfcdd 100644
--- a/src/false.c
+++ b/src/false.c
@@ -1 +1 @@
-int main(){return 0;}
+int main(){return 1;}
diff --git a/src/mv.c b/src/mv.c
new file mode 100644
index 0000000..d13d3bd
--- /dev/null
+++ b/src/mv.c
@@ -0,0 +1,12 @@
+#include <stdio.h>
+int main(int argc, char **argv){
+  char fed;
+  FILE *fp, *fp2;
+  fp = fopen(argv[1], "r");
+  fp2 = fopen(argv[2], "w");
+  while((fed=fgetc(fp)) != EOF )
+    fputc(fed, fp2);
+  fclose(fp2);
+  int after=remove(argv[1]);
+  return(0);
+}