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From: | Léa Gris |
Subject: | Re: Associative array keys are not reusable in (( command |
Date: | Mon, 11 Jan 2021 15:50:40 +0100 |
User-agent: | Telnet/1.0 [tlh] (PDP11/DEC) |
Le 11/01/2021 à 15:42, Léa Gris écrivait :
Declare an integer associative array instead: echo "$BASH_VERSION"5.0.17(1)-releasedeclare -Ai aa x='y[$(date >&2)0]' aa[$x]=1 declare -p aadeclare -Ai aa=(["y[\$(date >&2)0]"]="1" )aa[$x]+=1 declare -p aadeclare -Ai aa=(["y[\$(date >&2)0]"]="2" )
And forgot one more safe use of arithmetic expression: safe_arith_index=${x@Q} declare -p safe_arith_index
declare -- safe_arith_index="'y[\$(date >&2)0]'"
(( aa[$safe_arith_index]++ )) declare -p aa
declare -Ai aa=(["y[\$(date >&2)0]"]="3" )
-- Léa Gris
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