Shell脚本中的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
~

I need only -2 and +3 How to do that using grep or shell script?

Answer 1

Pipe the output into

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

So:

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