Count the number of occurence of perticular word from file - Shell Programming and Scripting

rinku · #1 (**permalink**) 05-25-2007

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.

blowtorch · #2 (**permalink**) 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.

funksen · #3 (**permalink**) 05-25-2007

grep -o <string> <file> | wc -w

cfajohnson · #4 (**permalink**) 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"

pelipeplips · #5 (**permalink**) 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

Klashxx · #6 (**permalink**) 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

Shell_Life · #7 (**permalink**) 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}

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