BASH regex help

[William Park]

On Fri, Apr 21, 2006 at 11:36:12AM -0400, Neil Watson wrote:
> I am trying to parse a string in BASH. I have two goals. First, exit if the
> string contains anything other than 0-9, a-z or '.'. Second escape all '.' 
> to
> '\.'.
> 
>        # Check for a proper url
>        if [[ $DOMAIN = [^a-b0-9\.] ]] ; then

if [[ $DOMAIN == [^a-b0-9\.] ]] ; then

>                echo "Invalid URL  a-b, 0-9 and . allowed only."
>                exit 1  
>        fi
> 
>        # We must escape special characters
>        $DOMAIN = ${DOMAIN//\./\\./}

DOMAIN=${DOMAIN//./\\./}

-- 
William Park <opengeometry-FFYn/CNdgSA at public.gmane.org>, Toronto, Canada
ThinFlash: Linux thin-client on USB key (flash) drive
	   http://home.eol.ca/~parkw/thinflash.html
BashDiff: Super Bash shell
	  http://freshmeat.net/projects/bashdiff/
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