How to list aliases (“alias” command) from within a script

Matthew Morrow

2/18/24, 4:01 PM

I’d like to execute the “alias” command from within a script. It’s under the “Settings” area for the user. I can execute “env” but would like to follow that with their set aliases that they/I would see via the “alias” command. Is there a way to do this? I’ve tried:

if [[ "${command}" == "L" || "${command}" == "l" ]]                     
   then
      echo " "
      echo "Environment settings (env): "
      env
      echo " "
      echo "aliases: "
      `/bin/bash;alias`
      `alias`
      `echo ${BASH_ALIASES[]}`
      /bin/bash;alias
      alias
      echo ${BASH_ALIASES[]}
      echo " "
      echo "Done with Settings. Hit Enter to continue. "
      read settings_trash
   fi

But I always get nothing/null or a new shell.

1 + 2

bash

alias

Matthew Morrow

2/18/24, 4:45 PM

Thanks sudodus that was just what I needed!

sudodus

2/18/24, 5:06 PM

You are welcome and good luck :-)

Score:2

Ubuntu

sudodus

2/18/24, 4:15 PM

You need an interactive shell to see the aliases.

The following example with bash can probably help you fix a script

bash -c 'alias'  # does not see any alias

bash -ic 'alias' # sees a lot of aliases (in my system)

+ 0

Elon Musk

I sit in a Tesla and translated this thread with Ai:

EN: How to list aliases (“alias” command) from within a script

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