2 files changed, 20 insertions, 1 deletions
diff --git a/README.md b/README.md
index a5ebf7c..0d87cd5 100644
--- a/README.md
+++ b/README.md
@@ -1 +1,20 @@
 # hiawk
+## err.awk
+エラー出力のテスト  
+正しく`stderr`に吐かせて、今回は例外エラーとして`-1`とする
+  
+実行
+```bash
+./err.awk
+echo $?
+./err.awk aa
+echo $?
+```
+
+### fb.awk
+awkでFizz!してBuzz!する  
+  
+実行
+```bash
+./fb.awk
+```
diff --git a/err.awk b/err.awk
index cb59ae9..376cc6a 100755
--- a/err.awk
+++ b/err.awk
@@ -10,7 +10,7 @@
 BEGIN {
   stderr = "/dev/stderr"
   if (ARGV[1] ~ /[A-Za-z]/) {
-    print "Error:", "I don't understand eng" >> stderr
+    print "Error:", "i don't understand it eng" > stderr
     exit -1
   }
 }