count occurences of specific character in the file - HP-UX

superprogrammer · #1 06-03-2005

For counting the occurences of specific character in the file
I am issuing the command
grep -o 'character' filename | wc -w
It works in other shells but not in HP-UX as there is no option -o for grep.
What do I do now?

superprogrammer · #2 06-03-2005

Forgot to mention I have an alternate solution
cat filename | tr -d '\n' | tr -s '"' '\n' | wc -l
But I am looking for a grep solution
Is it possible to make some changes in grep command here?

jim mcnamara · #3 06-03-2005

I use this, not necessarily the most efficient..

Code:

# charcnt count given char or chars in a file
# filename $1
# character or string $2
cnt=`grep "$2" $1 |
     awk -v CH="$2" '
          BEGIN {cnt =0}
          { while (y=index($0,CH))
            { cnt++
              y++
              $0=substr($0,y);
            }
          }
          END {print cnt }'`
echo "$2" "occurs $cnt times"

Ygor · #4 06-03-2005

awk '{c+=gsub(s,s)}END{print c}' s='character' filename

obedkhan · #5 02-16-2006

I am experiencing problem while executing the command :

awk '{c+=gsub(s,s)}END{print c}' s='character' filename

for character '\307'. could you please tell how to handle these type of characters.

jim mcnamara · #6 02-16-2006

try setting locale to univ.utf8

Ygor · #7 02-16-2006

Seems to work...

Code:

$ printf "123\307abc" > file1
$ awk '{c+=gsub(s,s)}END{print c}' s='\307' file1
1

Or try...

Code:

$ tr -dc '\307' < file1 | wc -c
1

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