start to implement tail.

2 files changed, 25 insertions, 1 deletions

diff --git a/head.c b/head.c
index 887b66f..f3f29a7 100644
--- a/head.c
+++ b/head.c
@@ -23,7 +23,7 @@ int main(int argc, char *argv[])
 
   FILE *file = fopen(argv[0], "r");
   if (file) {
-    int character; 
+    int character;
 
     while( (character = getc(file)) != EOF ) {
       putchar(character);
diff --git a/tail.c b/tail.c
new file mode 100644
index 0000000..e92992d
--- /dev/null
+++ b/tail.c
@@ -0,0 +1,24 @@
+#include <stdio.h>
+
+int main(int argc, const char *argv[])
+{
+  FILE *file = fopen(argv[1], "r");
+  if (file) {
+    int current_position = ftell(file);
+    int character;
+
+    fseek(file, 0L, SEEK_END);
+
+    current_position = ftell(file);
+    printf("file size: %d\n", current_position);
+
+    while(current_position >= 0) {
+      fseek(file, --current_position, SEEK_SET);
+      character = getc(file);
+      putchar(character);
+    }
+
+    fclose(file);
+    return 0;
+  }
+}