From 40488bd037b36726f17c26bba8f2b36e051db0a2 Mon Sep 17 00:00:00 2001
From: Xi Ruoyao <xry111@xry111.site>
Date: Thu, 23 Jun 2022 18:11:46 +0800
Subject: grep: mark egrep and fgrep obsolete

They are deprecated since 2007, and the next grep release (3.8 or 4.0)
will print a warning if they are used.

Url: https://git.savannah.gnu.org/cgit/grep.git/commit/?id=a951562
---
 chapter08/grep.xml | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

(limited to 'chapter08')

diff --git a/chapter08/grep.xml b/chapter08/grep.xml
index d06a1ba85..9861d239f 100644
--- a/chapter08/grep.xml
+++ b/chapter08/grep.xml
@@ -77,7 +77,8 @@
       <varlistentry id="egrep">
         <term><command>egrep</command></term>
         <listitem>
-          <para>Prints lines matching an extended regular expression</para>
+          <para>Prints lines matching an extended regular expression.
+          It is obsoleted, use <command>grep -E</command> instead</para>
           <indexterm zone="ch-system-grep egrep">
             <primary sortas="b-egrep">egrep</primary>
           </indexterm>
@@ -87,7 +88,8 @@
       <varlistentry id="fgrep">
         <term><command>fgrep</command></term>
         <listitem>
-          <para>Prints lines matching a list of fixed strings</para>
+          <para>Prints lines matching a list of fixed strings.
+          It is obsoleted, use <command>grep -F</command> instead</para>
           <indexterm zone="ch-system-grep fgrep">
             <primary sortas="b-fgrep">fgrep</primary>
           </indexterm>
-- 
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