匹配後的 grep 行直到結束

我有以下輸出，之後git status我該如何處理：grep``Untracked files

[alexus@wcmisdlin02 Test]$ git status 
# On branch master
#
# Initial commit
#
# Changes to be committed:
#   (use "git rm --cached <file>..." to unstage)
#
#   new file:   app/.gitignore
#   new file:   app/app.iml
#   new file:   app/build.gradle
#   new file:   app/proguard-rules.pro
#   new file:   app/src/androidTest/java/org/alexus/test/ApplicationTest.java
#   new file:   app/src/main/AndroidManifest.xml
#   new file:   app/src/main/java/org/alexus/test/MainActivity.java
#   new file:   app/src/main/res/layout/activity_main.xml
#   new file:   app/src/main/res/menu/menu_main.xml
#   new file:   app/src/main/res/mipmap-hdpi/ic_launcher.png
#   new file:   app/src/main/res/mipmap-mdpi/ic_launcher.png
#   new file:   app/src/main/res/mipmap-xhdpi/ic_launcher.png
#   new file:   app/src/main/res/mipmap-xxhdpi/ic_launcher.png
#   new file:   app/src/main/res/values-w820dp/dimens.xml
#   new file:   app/src/main/res/values/dimens.xml
#   new file:   app/src/main/res/values/strings.xml
#   new file:   app/src/main/res/values/styles.xml
#
# Untracked files:
#   (use "git add <file>..." to include in what will be committed)
#
#   .gitignore
#   .idea/
#   Test.iml
#   build.gradle
#   gradle.properties
#   gradle/
#   gradlew
#   gradlew.bat
#   settings.gradle
[alexus@wcmisdlin02 Test]$ 

像這樣，但沒有指定行數，如-AGNU 中的參數grep：

[alexus@wcmisdlin02 Test]$ git status | grep -A100 'Untracked files'
# Untracked files:
#   (use "git add <file>..." to include in what will be committed)
#
#   .gitignore
#   .idea/
#   Test.iml
#   build.gradle
#   gradle.properties
#   gradle/
#   gradlew
#   gradlew.bat
#   settings.gradle
[alexus@wcmisdlin02 Test]$ 

有沒有辦法做到這一點？

[alexus@wcmisdlin02 Test]$ grep --version
grep (GNU grep) 2.20
Copyright (C) 2014 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

Written by Mike Haertel and others, see <http://git.sv.gnu.org/cgit/grep.git/tree/AUTHORS>.
[alexus@wcmisdlin02 Test]$ 

使用 GNU grep（使用 2.6.3 版測試）：

git status | grep -Pzo '.*Untracked files(.*\n)*'

用於-Pperl 正則表達式，-z也可以匹配換行符\n並-o僅列印與模式匹配的內容。

正則表達式解釋：

首先，我們匹配任何字元 ( .) 零次或多次 ( *)，直到出現字元串Untracked files。現在，括號內的部分(.*\n)匹配除換行符 ( .) 零次或多次 ( *) 後跟換行符 ( ) 之外的任何字元\n。而所有這些（在 backets 裡面）可以發生零次或多次；這就是 last 的意思*。它現在應該匹配所有其他行，在第一次出現Untracked files.

引用自：https://serverfault.com/questions/695310