在shell腳本中的Git diff解析

Question

git diff 

diff --git a/lids b/lids 
index 1191247..2b2f2e1 100644 
--- a/lids 
+++ b/lids 
@@ -1,2 +1,2 @@ 
1 
-2 
+3 


git diffdiff --git a/lids b/lids 
index 1191247..2b2f2e1 100644 
--- a/lids 
+++ b/lids 
@@ -1,2 +1,2 @@ 
1 
~ 
-2 
+3 
~ 

我只需要-2和+3 如何使用grep或shell腳本執行該操作？

Answer 1

管道輸出到

grep '^[+-][0-9]' 

所以：

diff --git a/lids b/lids | grep '^[+-][0-9]'