Git diff parse using grep shell command

Question

git diff

diff --git a/lids b/lids
index 009d7e8..46447a8 100644
--- a/lids
+++ b/lids
@@ -1,12 +1,12 @@
-FP CA1 CAPS Mapping.pdf
 mtool1428_100squaretool.html
+mtool1428_100squaretool.py
 Lesson Guide 100square 23LessonIdeas.pdf
 Worksheet 100square 0to99.pdf
 Worksheet 100square 1to100.pdf
 Worksheet 100square Blank.pdf
-Worksheet 100square Challenge 1.pdf
-Worksheet 100square Challenge 2.pdf
+Worksheet 100square Challenge 11.pdf
 Worksheet 100square Challenge 3.pdf
+Worksheet 100square Challenge 2.pdf
 Worksheet 100square Challenge 4.pdf
 Worksheet 100square Challenge 5.pdf
 Worksheet 100square Challenge 6.pdf

How to grep deleted strings starting with a single - sign and string starting with single + sign

Answer 1

How to grep deleted strings starting with a single - sign and string starting with single + sign

You can use this egrep:

grep '^ *[-+][a-zA-Z0-9]'

OR this:

grep '^ *[-+][[:alnum:]]'

OR this:

grep '^ *[-+][^-+]' 

Answer 2

以下命令显示每行开头的“ - ”或“+”行，后面没有“ - ”或“+”

git diff <file> | grep ^[-+][^-+]