1 files changed, 44 insertions, 0 deletions
diff --git a/42sh/src/builtins/unset.c b/42sh/src/builtins/unset.c
new file mode 100644
index 0000000..77b323a
--- /dev/null
+++ b/42sh/src/builtins/unset.c
@@ -0,0 +1,44 @@
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "builtins.h"
+#include "utils/env.h"
+
+int unset(struct string **args)
+{
+    size_t i = 0;
+    int var = 0;
+    int fun = 0;
+    while (args[i] != NULL && args[i]->data[0] == '-')
+    {
+        if (args[i]->data[1] == 'v')
+        {
+            var = 1;
+            i += 1;
+        }
+        else if (args[i]->data[1] == 'f')
+        {
+            fun = 1;
+            i += 1;
+        }
+        else
+        {
+            break;
+        }
+    }
+    if (var == 0 && fun == 0)
+    {
+        var = 1;
+        fun = 1;
+    }
+    // TODO unset with flag -f
+    while (args[i] != NULL)
+    {
+        env_unset(args[i]->data);
+        i += 1;
+    }
+    fflush(stdout);
+    return 0;
+}