UNIX for Advanced & Expert Users

filename="xxx0173.052305"
print - "$filename" | sed 's/^xxx0\([^.]*\).*$/\1/'    # will yield "173"

# hence (we assume the variable $filename to be there):

typeset chFileSig="$(print - "$filename" | sed 's/^xxx0\([^.]*\).*$/\1/')"

mv $filename /path/to/dir/d${chFileSig}

#!/bin/ksh
today="$(date +%m%d%y)"

for filename in *.${today}
do
   print - "$filename" | sed 's/^xxx0\([^.]*\).*$/\1/'    # will yield "173"
   # hence (we assume the variable $filename to be there):
   typeset chFileSig="$(print - "$filename" | sed 's/^xxx0\([^.]*\).*$/\1/')"

   mv "$filename" "/path/to/dir/d${chFileSig}"
done