Re: bash can't distinguish between empty and unset arrays

On 2/3/16 6:43 PM, Martijn Dekker wrote: > bash treats an empty array as if it were an unset variable, which seems > very illogical as empty is quite distinct from unset: > > $ myarray=() > $ [[ -v myarray ]] && echo set || echo unset > unset If you use the name of an array in a variable context

Re: bash can't distinguish between empty and unset arrays

2016-02-03 23:43:37 +, Martijn Dekker: > bash treats an empty array as if it were an unset variable, which seems > very illogical as empty is quite distinct from unset: > > $ myarray=() > $ [[ -v myarray ]] && echo set || echo unset > unset [[ -v var ]] is for scalar variables (AFAICT). bash

Re: bash can't distinguish between empty and unset arrays

Hi, Am 04.02.2016 um 00:43 schrieb Martijn Dekker: > bash treats an empty array as if it were an unset variable, which seems > very illogical as empty is quite distinct from unset: > > $ myarray=() > $ [[ -v myarray ]] && echo set || echo unset > unset Which version of bash are you using? > $

bash can't distinguish between empty and unset arrays

bash treats an empty array as if it were an unset variable, which seems very illogical as empty is quite distinct from unset: $ myarray=() $ [[ -v myarray ]] && echo set || echo unset unset $ set | grep ^myarray= # yet, it's set: myarray=() $ set -u $ for i in "${x[@]}"; do :; done bash: x[@]: un