셸에서만 CSV를 숫자로 나눕니다.

결과

.
├── sample.csv
├── main.sh

#!/bin/sh
set -e

# file path
[ ! -e "$1" ] && exit 1 || datafile="$1"
# File extension deletion
filename="${datafile%.*}"
# Get number of lines
row=$(grep -c '' $datafile)
# Obtaining the number of splits
sep="$2"
# Number of directories created
dir_cnt=$(awk -v row="$row" -v sep="$sep" 'BEGIN {
    i=row/sep
    printf("%d\n",i+=i<0?0:0.999)
    }
    '
)
# Folder creation
seq -f "${filename}_%01.0f" 1 ${dir_cnt} |
xargs mkdir -p
# File division
split -l ${sep} -a 2 $datafile "${filename}_"
# File movement
count=1
for i in `find . -type f -name "${filename}_*" | sort`
do
    mv $i "${filename}_${count}/${i//_*/_${count}}.csv"
    let count++
done

sh main.sh sample.csv 25

.
├── main.sh
├── sample.csv
├── sample_1
│   ├── sample_1.csv
├── sample_2
│   ├── sample_2.csv
├── sample_3
│   ├── sample3.csv
├── sample_4
│   ├── sample4.csv

보충

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