From d4e8737175afe8f6c887384dff3253f0637f42ef Mon Sep 17 00:00:00 2001
From: Marcin Chrzanowski <m@m-chrzan.xyz>
Date: Thu, 25 Mar 2021 11:54:14 +0100
Subject: Add sed backreferences

---
 sed.md | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/sed.md b/sed.md
index e2cc9bd..3122058 100644
--- a/sed.md
+++ b/sed.md
@@ -7,3 +7,7 @@ Typical substitution:
 Can do multiple:
 
     sed -e 's/pattern/replacement/flags; s/bla/ble/'
+
+Back references require extended regexes:
+
+    sed -r -e 's/"(\w+)"/\1/'
-- 
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