How can I unset a key / value pair in a BASH associative array?

Hi all, I have this code:

declare -A CONSOLES=(
                     ["/home/pi"]="local"
                     ["pi@192.168.178.170:/home/pi"]="pitendo"
                     ["ftp://192.168.178.171/sd/retroarch"]="nintendowii"
                     ["ftp://192.168.178.172:1337/ux0:/data/retroarch"]="psvita"
                    )




unset $CONSOLES[local]
unset ${CONSOLES[/home/pi]}


echo "${!CONSOLES[@]}"

Open in new window

But I am not able to remove from CONSOLES the key / value pair

["/home/pi"]="local"

Open in new window

Can you help?

Thanks.

* BashProgramming

Last Comment

noci

8/22/2022 - Mon

Andrei Fomitchev

6/19/2021

It should work:

unset CONSOLES["/home/pi"]

Open in new window

noci

6/20/2021

Some additional info:
Using unset $.... means unsetting the expansion of some variables, while you need access to the variable itself.
( bash != perl )

ltpitt

6/22/2021

ASKER

Hello!

Sadly it does not work:

declare -A CONSOLES=(
                     ["/home/pi"]="local"
                     ["pi@192.168.178.170:/home/pi"]="pitendo"
                     ["ftp://192.168.178.171/sd/retroarch"]="nintendowii"
                     ["ftp://192.168.178.172:1337/ux0:/data/retroarch"]="psvita"
                    )
echo "Before unset:"
echo "${!CONSOLES[@]}"
echo "After unset:"
unset ${CONSOLES["/home/pi"]}
echo "${!CONSOLES[@]}"

Open in new window

Output:

Before unset:
ftp://192.168.178.171/sd/retroarch /home/pi pi@192.168.178.170:/home/pi ftp://192.168.178.172:1337/ux0:/data/retroarch
After unset:
ftp://192.168.178.171/sd/retroarch /home/pi pi@192.168.178.170:/home/pi ftp://192.168.178.172:1337/ux0:/data/retroarch

Open in new window

Experts Exchange is like having an extremely knowledgeable team sitting and waiting for your call. Couldn't do my job half as well as I do without it!

James Murphy

ASKER CERTIFIED SOLUTION

noci

6/22/2021

THIS SOLUTION ONLY AVAILABLE TO MEMBERS.

View this solution by signing up for a free trial.

Members can start a 7-Day free trial and enjoy unlimited access to the platform.

See Pricing Options

Start Free Trial

GET A PERSONALIZED SOLUTION