Bash Tutorial => $GROUPS

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Example

An array containing the numbers of groups the user is in:

#!/usr/bin/env bash
echo You are assigned to the following groups:
for group in ${GROUPS[@]}; do
   IFS=: read -r name dummy number members < <(getent group $group )
   printf "name: %-10s number: %-15s members: %s\n" "$name" "$number" "$members" 
done

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