mac(BSD)とLinuxでcpコマンドの動作が違うのにハマった → core utilsをGNUに総取り替え

cp (BSD)

TL;DR

apple.stackexchange.com

やったこと

• Brewfile に coreutils ほかutilityを追加
• $PATH と $MANPATH を修正

brew install coreutils findutils gnu-tar gnu-sed gawk gnutls gnu-indent gnu-getopt grep

export PATH="/usr/local/opt/findutils/libexec/gnubin:$PATH"
export PATH="/usr/local/opt/gnu-tar/libexec/gnubin:$PATH"
export PATH="/usr/local/opt/gnu-sed/libexec/gnubin:$PATH"
export PATH="/usr/local/opt/gawk/libexec/gnubin:$PATH"
export PATH="/usr/local/opt/gnutls/libexec/gnubin:$PATH"
export PATH="/usr/local/opt/gnu-indent/libexec/gnubin:$PATH"
export PATH="/usr/local/opt/gnu-getopt/libexec/gnubin:$PATH"
export PATH="/usr/local/opt/grep/libexec/gnubin:$PATH"

export MANPATH="/usr/local/opt/coreutils/libexec/gnuman:$MANPATH"
export MANPATH="/usr/local/opt/findutils/libexec/gnuman:$MANPATH"
export MANPATH="/usr/local/opt/gnu-tar/libexec/gnuman:$MANPATH"
export MANPATH="/usr/local/opt/gnu-sed/libexec/gnuman:$MANPATH"
export MANPATH="/usr/local/opt/gawk/libexec/gnuman:$MANPATH"
export MANPATH="/usr/local/opt/gnutls/libexec/gnuman:$MANPATH"
export MANPATH="/usr/local/opt/gnu-indent/libexec/gnuman:$MANPATH"
export MANPATH="/usr/local/opt/gnu-getopt/libexec/gnuman:$MANPATH"
export MANPATH="/usr/local/opt/grep/libexec/gnuman:$MANPATH"

どうしてやったのか

dotfilesを $HOME に展開する上で、cpコマンドの-lオプションが便利だからです。
このオプション、BSDのcpコマンドにはなかったので...

github.com

結果

cp (GNU)

無事にGNUベースに置き換え成功しました！