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いなたつAdvent Calendar 2019

Day 13

fishでmkcdコマンドを作る

Last updated at Posted at 2019-12-13

はじめに

いなたつアドカレの十三日目の記事です。

fishでmkcdコマンドを作った解説記事です。

じっそー

function mkcd
  set dirname $argv[1]
  mkdir -p $dirname
  eval "cd" $dirname
end

1行目は関数の宣言ですね。
2行目でdirnameという変数にコマンドライン引数の1つめを代入しています。
3行目で変数dirnameに対してまずはmkdirコマンドを実行し
4行目でevalを使ってcdコマンドを同様にdirnameに対して行っています。

注意事項

  • mkdir の -p は複数階層を一度につくるため
  • evalせずにcdをすると、終了後にパスが戻る
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