FUGA is empty http://unix.stackexchange.com/questions/146942/how-can-i-test-if-a-variable-is-empty-or-contains-only-spaces https://stackoverflow.com/questions/18096670/what-does-z-mean-in-bash ディレクトリが存在するか if[[-d"path/to/target"]];thenecho'Directory exists'exit1fi 変数の...