1 | #!/bin/bash |

2 | # |

3 | # let arithmetic. |

4 | |

5 | ### let |

6 | # NOTE: no spaces are allowed. How is this tokenized? |

7 | let x=1 |

8 | let y=x+2 |

9 | let z=y*3 # zsh treats this as a glob; bash doesn't |

10 | let z2='y*3' # both are OK with this |

11 | echo $x $y $z $z2 |

12 | # stdout: 1 3 9 9 |

13 | # OK zsh stdout-json: "" |

14 | |

15 | ### let with () |

16 | let x=( 1 ) |

17 | let y=( x + 2 ) |

18 | let z=( y * 3 ) |

19 | echo $x $y $z |

20 | # stdout: 1 3 9 |

21 | # N-I mksh/zsh stdout-json: "" |