# ファイル find ./ -type f | grep old_word | awk '{print $0 " " $0 }' | awk '{sub("old_word", "new_word", $2); print $1 " " $2}' | xargs -n2 mv # ディレクトリ find ./ -type d | grep old_word | awk '{print $0 " " $0 }' | awk '{sub("old_word…

こんなエラー An error occurred while installing ffi (1.9.21), and Bundler cannot continue. Make sure that `gem install ffi -v '1.9.21'` succeeds before bundling.ライブラリがないっぽいので sudo yum install ruby-devel libffi-develすればOKだ…