for循环

for i in {0..49}

do

    printf "cp  csv2drds-TF_B_PAYLOG_D.json x%02d.json\n " $i|sh

    filename=`printf "x%02d" $i`

    jsonname=`printf "x%02d.json" $i`

    sed -i 's/\/tmp\/ditagent\/TF_B_PAYLOG_D.csv/\/vdata\/datapre\/281\/'"$filename"'/g' $jsonname

    echo 'nohup python datax.py ./'"$jsonname"' > '"$filename"'.log 2>&1 &'

done