Split variables in format "WWxHH" "WW" and "HH" (width and height) in Bash.

splitvals.sh

#!/usr/bin/env bash
# Split the values passed as wwwXhhh in width and height
# 


function wh_vals {
    # Convert upper 'X' to lower 'x' so the 'cut' command works.
    size="$(tr '[:upper:]' '[:lower:]' <<<"$1")"
    width="$(cut -d'x' -f1 <<<"$size")"
    height="$(cut -d'x' -f2 <<<"$size")"
}

mysize="$1"

wh_vals $mysize
echo $width

exit 0