Linux puskom-ProLiant-DL385-Gen10 5.4.0-150-generic #167~18.04.1-Ubuntu SMP Wed May 24 00:51:42 UTC 2023 x86_64

//usr/share/bash-completion/completions/id

 # id(1) completion                                         -*- shell-script -*-

_id()
{
    local cur prev words cword
    _init_completion || return

    if [[ "$cur" == -* ]]; then
        local opts=$( _parse_help "$1" )
        [[ $opts ]] || opts="-G -g -u" # POSIX fallback
        COMPREPLY=( $( compgen -W "$opts" -- "$cur" ) )
    else
        COMPREPLY=( $( compgen -u "$cur" ) )
    fi
} &&
complete -F _id id

# ex: filetype=sh