file generation

#!/bin/bash
for M in $(seq -w 12); do
  YM="2016${M}"
  mkdir -p ${YM}
  paste \
    "abc_la${M}5.txt" \
    "abc_lo${M}5.txt" \
    "abc_b${M}5.txt" \
    "abc_h${M}5.txt" \
    "abc_q${M}5.txt" \
    "abc_f${M}5.txt" \
    "abc_m${M}5.txt" | \
  awk -v m="${YM}/abc_%02d.txt" '!$4{++d;f=sprintf(m,d)};{print >f}'
  cd ${YM}
  ls abc_[01][0-9].txt | xargs -n1 sed -n '$=' >abc_num.txt
  cd ..
done