On Mon, Oct 24, 2016 at 07:58:52AM -0500, Richard Owlett wrote: > blocks=$(expr $(/sbin/isosize /dev/sr0) / 2048)
Use $(( ... )) for integer arithmetic. blocks=$(( $(/sbin/isosize /dev/sr0) / 2048 )) > ls -l $FILENAME ;# to stdout AND "logfile" Always quote properly. ls -ld "$FILENAME" References: http://mywiki.wooledge.org/Quotes http://mywiki.wooledge.org/ArithmeticExpression