| if [ $# -ne 1 ]; then | |
| echo "which file" | |
| exit 1 | |
| fi | |
| totalLines=$(cat $1 | wc -l) | |
| echo "total line numbers: $totalLines" | |
| rm ./xx | |
| for i in `seq 1 100`; | |
| do | |
| lx=$(( $i * $totalLines )) | |
| lxx=$(( $lx / 100 )) | |
| sed -n "${lxx}p" $1 >> ./xx | |
| done | |
| cat ./xx | awk '{print $1,"\t",NR}' > cdf-$1 |