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count occurences of specific character in the file

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Operating Systems HP-UX count occurences of specific character in the file
# 1  
Old 06-03-2005
count occurences of specific character in the file
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?
# 2  
Old 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?
# 3  
Old 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"

# 4  
Old 06-03-2005
awk '{c+=gsub(s,s)}END{print c}' s='character' filename
# 5  
Old 02-16-2006
If the character is \307
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.
# 6  
Old 02-16-2006
try setting locale to univ.utf8
# 7  
Old 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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