Count occurrences of character per line/field on Unix

Question

Given a file with data like this (ie stores.dat file)

sid|storeNo|latitude|longitude
2tt|1|-28.0372000t0|153.42921670
9|2t|-33tt.85t09t0000|15t1.03274200
         


        

Answer 1

grep -n -o "t" stores.dat | sort -n | uniq -c | cut -d : -f 1

gives almost exactly the output you want:

  4 1
  3 2
  6 3

Thanks to @raghav-bhushan for the grep -o hint, what a useful flag. The -n flag includes the line number as well.