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Count the number of occurence of perticular word from file

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# 1  
Old 05-25-2007
Data Count the number of occurence of perticular word from file
I want to count the number of occurence of perticular word from one text file.

Please tell me "less" command is work in ksh or not. If it is not working then instead of that which command will work. Smilie
# 2  
Old 05-25-2007
The 'less' command is used to view a file. Use grep to search for a particular word in a file. You can use this to count the number of occurrences too, just check the man page for the exact switch.
# 3  
Old 05-25-2007
grep -o <string> <file> | wc -w
# 4  
Old 05-25-2007
Quote:
Originally Posted by rinku
I want to count the number of occurence of perticular word from one text file.

Code:
tr -cs 'A-Za-z' '\n' < FILE | grep -c "WORD"

These 2 Users Gave Thanks to cfajohnson For This Post:
Rajeev Ranjan K Siddharth Gee
# 5  
Old 08-08-2007
Quote:
grep -o <string> <file> | wc -w
I tried using grep with the "-o" option and it gives me this error:
grep: illegal option -- o
What does "-o" option do?

I also need to find an occurence of a certain string within a file. Currently I'm using:
Code:
grep -c 'abc' sample.txt

But the code above only counts the occurrences per line. How will i get the total count of the 'abc' words regardless of how many occerence they have per line?

Example:
This is line 1 abc and abc
This is line 2 abc

# 6  
Old 08-08-2007
Use:
Code:
awk '{ 
     for (i=1;i<=NF;i++)
         if ( $i == "abc")
         c++
     }
END{
print c}' sample.txt

Or:
Code:
awk '
BEGIN {
RS=FS
}
{
if ( $0 ~ /abc/ )
   c++
}
END{
print c++
}' lsample.txt

# 7  
Old 08-08-2007
Quote:
Originally Posted by cfajohnson

Code:
tr -cs 'A-Za-z' '\n' < FILE | grep -c "WORD"

This solution does not work.

Here is a sample file:
Code:
a aa aaa
aaa aa a
aaa aa a aaa aa a aaa

Here is one test:
Code:
tr -cs 'A-Za-z' '\n' < FILE | grep -c "aaa"

It gives the total of words as '3', when the answer is '5'.

Here is another possible solution for those who want to use shell script:
Code:
#!/bin/ksh
typeset -i mCnt=0
mWord='aaa'
for mEach in `cat input_file`
do
  if [ "${mEach}" = "${mWord}" ]; then
    mCnt=${mCnt}+1
  fi
done
echo 'Total words for '${mWord}' = '${mCnt}

Last edited by Shell_Life; 08-08-2007 at 12:14 PM..
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