如何合并少于x行的文件?

给定一个文件夹,其中包含n个具有不同行数的文件:

$wc -l * | sort -n -r     # list and sort files by number of lines
> 99860 total
  50000 mr.txt
   4976 स.txt
   4462 प.txt
   3745 म.txt
   3545 क.txt
   3195 व.txt
   2201 न.txt
   2183 ब.txt
   2134 अ.txt
   1789 र.txt
   1666 द.txt
   1623 आ.txt
   1568 ग.txt
   1524 ज.txt
   1507 त.txt
   1376 श.txt
   1132 ल.txt
   1102 ह.txt
   1089 च.txt
   1076 उ.txt
   1025 भ.txt
    809 य.txt
    791 फ.txt
    766 ख.txt
    652 ट.txt
    645 घ.txt
    480 ए.txt
    456 इ.txt
    446 ध.txt
    420 ड.txt
    318 ठ.txt
    273 झ.txt
    182 थ.txt
    163 ओ.txt
    118 छ.txt
    115 ऑ.txt
     64 ऐ.txt
     55 ढ.txt
     44 औ.txt
     29 २.txt
     26 ई.txt
     20 ष.txt
     20 ऊ.txt
     20 १.txt
     14 ऋ.txt
      6 ऱ.txt
      4 ३.txt
      2 ९.txt
      2 ८.txt
      1 ॐ.txt
      1 ४.txt

如何合并少于200行的文件? 我想按字母顺序处理文件,每个内容都附加在文件末尾 output.txt .