gistfile1.sh

#! /usr/bin/sh

INPUT_FILE=data1
OUTPUT_FILE=data2

awk -c '
BEGIN {
FS = "\t" # TAB chara fow win platform
OFS = "\t" 
REC_N = 15 # column number
}
{
printf "%s", $0
n = REC_N - NF
for (i = 0 ; i < n ; ++i) {
printf "\t " # TAB chara for linux platform
}
printf "\n" # Enter chara for linux
}
' ${INPUT_FILE} > ${OUTPUT_FILE}