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mac標準のgrepはなぜかエラーが出るので、brew install grepしてみた

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grepしたらエラーが出るので、解決策を記します。

mac標準のgrepだとエラーがでる

mac標準のgrepを使ってみました。

$ grep -r "こんにちは"
egrep: warning: recursive search of stdin

なんなんやろ、このエラー
調べてもわかりませんでしたが、解決策はわかりました。

解決策は「brew install grep」

Homebrewからgrepをインストールし、PATHを通したらいけます!

$ brew install grep

「.bashrc」を開いて下記を追加

PATH="/usr/local/opt/grep/libexec/gnubin:$PATH"
MANPATH="/usr/local/opt/grep/libexec/gnuman:$MANPATH"

「.bashrc」を読み込む

$ source ~/.bashrc

もう一回grepしてみる

$ grep -r "こんにちは"
hello/hello.html

いけました!

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