How to Perform Split EXPORT in UNIX environment?

#Split_Export
#!/bin/ksh
#
# splitexport
# Tue Dec 14 08:48:13 NFT 1999 Olle Welinder
#
set -x
trap 'rm -f $PIPES' EXIT QUIT
#
#
export NLS_LANG=AMERICAN_AMERICA.WE8ISO8859P1
export ORACLE_SID=CFORD01
ORAUSER=system
ORAPASSWD=$1
SPLITP="/tmp/split_pipe"
COMPRP="/tmp/compress_pipe"
PIPES="$SPLITP $COMPRP"
INFILE=$1
FILESIZE=${2:-500}
PREFIX=${3:-"expEBCORDER01"}
DUMPDIR=${4:-"/export/54682"}
#if [ "${INFILE}" = "" ];then
# read INFILE?"Enter name of expfile==>"
#fi
#
# Create named pipes
for a in $PIPES;do
mknod $a p
done
#
#
nohup split -b ${FILESIZE}m ${SPLITP} "$DUMPDIR/${PREFIX}" &
nohup compress < ${COMPRP} > ${SPLITP} &
exp ${ORAUSER}/${ORAPASSWD} file=${COMPRP} compress=n statistics=none owner=ebcorder01 direct=true recordlength=65535 buffer=
10000000 log=/export/54682/exp_ebcorder01.log