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: ""