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temp env allows variables that look like array subscripts
From: |
Grisha Levit |
Subject: |
temp env allows variables that look like array subscripts |
Date: |
Tue, 17 Jul 2018 16:51:21 -0400 |
Usually, an assignment preceding a command that would create a
variable with an invalid name is rejected and treated like a command
name:
$ 1=X :
bash: 1=X: command not found
But when the variable name looks (sort of) like an array subscript
assignment, it is accepted and an oddly named variable is created:
$ f() { declare -p ${!var*}; }; var[0]=X var[@]=Y f
declare -x var[0]="X"
declare -x var[@]="Y"
- temp env allows variables that look like array subscripts,
Grisha Levit <=