#!/bin/ksh -p
# Splits large file into 1.44Mb floppy size chunks...
# Usage: floppysplit [-d] filename
#     ** floppysplit filename.extn => split files into unix
#          filename format.
#          i.e. filename.extn => filename.extn.1,
#                                filename.extn.2,
#                                filename.extn.3, etc.
#
#          To "reconnect" the files under UNIX, use cat:
#            cat filename.extn.1 filename.extn.2 etc. > filename.extn
#
#     ** floppysplit -d filename.ext = split files into MSDOS
#          filename format.
#
#        * N.B. floppysplit assumes that the filename.ext is already in
#            DOS filename format!!!
#
#          i.e. filename.ext => filename.ex1
#                               filename.ex2,
#                               filename.ex3, etc.
#
#          To "reconnect" the files under DOS, use copy /b:
#            COPY /B FILENAME.EX1+FILENAME.EX2+etc. FILENAME.EXT


filename=$1

dos=0
if [[ $filename == "-d" ]] ; then
  dos=1 ;
  filename=$2
fi

if [[ $filename == "" ]] ; then
  echo "Usage: floppysplit [-d] filename" ;
  echo "       Read this shellscript ( $0 ) "
  echo "         for more information..."
  exit 1 ;
fi

split -b 1423k $filename

if (( dos == 1 )) ; then
  dot=$(echo "$filename" | grep -c "\.")
  if (( dot == 0 )) ; then
    filename=$filename.x
  fi
fi

filnam=$( echo $filename | sed 's/.$//' )
count=0
for i in a b c d e f g h i j k l m n o p q r s t u v w x y z ; do
  if [ -e xa$i ] ; then

    count=$((count+1))
    if (( count > 9 )) ; then
      filnam=$( echo $filnam | sed 's/.$//' ) ;
    fi ;

    if (( dos == 1 )) ; then
      mv xa$i $filnam$count ;
    else
      mv xa$i $filename.$count ;
    fi ;

  fi ;
done ;