Score:0

Ubuntu

How to store long commands in environment variables in Linux?

dodo

11/12/23, 12:15 PM

I want to simply run the long command below.

docker ps -a --format "table {{.Image}}\t{{.Ports}}"

export view='docker ps -a --format "table {{.Image}}\t{{.Ports}}"'

test

echo $view
docker ps -a --format "table {{.Image}}\t{{.Ports}}"

Env Variable Exec

$view

Result end Error code

But it runs like below.

"docker ps" accepts no argumets.
See 'docker ps --help'

Usage: docker ps [OPTIONS]

List containers

In short, can't save such long code as an environment variable?

and If possible, can I know another way?

1 + 1

command-line

bash

scripts

environment-variables

docker

FedKad

11/12/23, 12:29 PM

Why don't you use Bash "aliases": https://tldp.org/LDP/abs/html/aliases.html ?

Score:2

Ubuntu

pLumo

11/12/23, 12:24 PM

You should save as array and quote correctly. Only then you can be sure that it expands correctly.

cmd=("docker" "ps" "-a" "--format" "table {{.Images}}\t{{.Ports}}")
"${cmd[@]}"

+ 4

dodo

11/12/23, 12:29 PM

Thank you for your prompt answer for the answer to my question :D

dodo

11/12/23, 12:38 PM

thank you for your reply. It's resolved. But the above command doesn't work. It would be appreciated if you could correct the typo with the command below.

dodo

11/12/23, 12:38 PM

cmd=("docker" "ps" "-a" "--format" "table {{.Image}}\t{{.Ports}}")

dodo

11/12/23, 12:40 PM

oh.. sorry I'm wrong . I need to fix it. images -> image

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EN: How to store long commands in environment variables in Linux?

Post an answer

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