Re: [Linuxcommand-discuss] security_check

[Tomi O. <Tom...@so...>]

Sunday Jun 18 13:23:08 -0400 2000 root <ro...@te...> wrote:
> 
> Here's a small function that may want to be included into the the
> new_script program:
> 
> --CUT--
> 
> function security_check
> {
>         #####
>         #       check to make sure the person running this is root or
> 	#	equivalent
>         #####
> 
>         if [ `id -u` != 0 ]; then
>                 echo "ERROR: Only Superuser may use this program."
>                 exit 1
>         fi
> }

What I have used instead of this:

if [ x`id | sed 's/uid=\([0-9]*\).*/\1/'` != x0 ]
then
    echo "$0 needs root access."
    echo -n "Please enter your root account name (Default: root) "
    read account

    exec /bin/su ${account:-root} -c $0 $*
fi

The reason for using id like this that it is more portable across UNIX
platforms. 


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Tomi