Xref: utzoo comp.unix.questions:25973 comp.unix.shell:430
Path: utzoo!attcan!uunet!shakti!mickey
From: mickey@ncst.ernet.in (R Chandrasekar)
Newsgroups: comp.unix.questions,comp.unix.shell
Subject: Re: Counting characters with unix utilities
Message-ID: <986@shakti.ncst.ernet.in>
Date: 4 Oct 90 13:02:04 GMT
References: <4002@umbc3.UMBC.EDU>
Reply-To: mickey@shakti (R Chandrasekar)
Followup-To: comp.unix.questions
Organization: National Centre for Software Technology, Bombay, INDIA
Lines: 20

In article <4002@umbc3.UMBC.EDU> rouben@math9.math.umbc.edu () writes:
>How can I count the number of occurrences of a given character in a file?
>...
>The closest  I have come to this is the following construction:
>
>cat file | tr -c 'A' '' | wc -c

Try:

    tr -dc 'A' < file | wc -c

tr -dc 'A'
  deletes all chars which are in the complement set of 'A'.
Voila etc etc! Works, but is a 'sumb' way to count chars. Is there
a better way?

>
>Rouben Rostamian                               Telephone: (301) 455-2458

  -- Chandrasekar