Парсимо рік із трансакцій казначейства

year1.sh

cat transactions.csv |grep -oPi '[\s\.]+(?:\d\d|\d\d\d\d|\d\d\d\d\d|\d\d\d\d\d\d|xxxx)р[\.#\s,;]'|sed 's/^\s*//g'|sort|uniq -c|sort -k 1 -n -r | head -n 15
  87036 .15р.
  57107 .2015р.
  47615 2015р.
  19852 .xxxxр.
  13904 xxxxр.
   9275 .15р#
   6278 .2015р#
   5315 .15р,
   5026 .15р 
   4537 15р.
   4058 2015р 
   3896 2015р#
   2970 .2015р 
   2728 2015р;
   2348 .14р.

year2.sh

cat transactions.csv |grep -oPi '[\s\.]+(?:\d\d|\d\d\d\d|\d\d\d\d\d|\d\d\d\d\d\d|xxxx)р[\.#\s,;]'|sed 's/^\s*//g'|sort|uniq -c|sort -k 1 -n -r|tail -n 15
      1 .0615р.
      1 050115р#
      1 . 03р.
      1 0315р 
      1 .0315р.
      1 .02р;
      1 .022015р#
      1 020315р 
      1 .01р,
      1 .01р 
      1 .012015р 
      1 .012011р.
      1 .012006р.
      1 0115р#
      1 0115р