How to Get No. of Lines Count That Matches a String from All the Files in a Folder

How to get no. of lines count that matches a string from all the files in a folder

You can pipe your grep with wc -l to get count of lines containing your keyword:

grep -r "string_example" . | wc -l

Unix: How can I count all lines containing a string in all files in a directory and see the output for each file separately

Why not simply use grep -c which counts matching lines? According to the GNU grep manual it's even in POSIX, so should work pretty much anywhere.

Incidentally, your use of -o makes your commands count every occurence of the string, not every line with any occurences:

$ cat > testfile
hello hello
goodbye
$ grep -o hello testfile
hello
hello

And you're doing a regular expression search, which may differ from a string search (see the -F flag for string searching).

How can I count all the lines of code in a directory recursively?

Try:

find . -name '*.php' | xargs wc -l

or (when file names include special characters such as spaces)

find . -name '*.php' | sed 's/.*/"&"/' | xargs  wc -l

The SLOCCount tool may help as well.

It will give an accurate source lines of code count for whatever
hierarchy you point it at, as well as some additional stats.

Sorted output:

find . -name '*.php' | xargs wc -l | sort -nr

Count all occurrences of a string in lots of files with grep

cat * | grep -c string

How can I find and count number of files matching a given string?

You can use

find / -type f -name 'foo*' | wc -l

• Use the single-quotes to prevent the shell from expanding the asterisk.
• Use -type f to include only files (not links or directories).
• wc -l means "word count, lines only." Since find will list one file per line, this returns the number of files it found.

How to count lines in a document?

Use wc:

wc -l <filename>

This will output the number of lines in <filename>:

$ wc -l /dir/file.txt
3272485 /dir/file.txt

Or, to omit the <filename> from the result use wc -l < <filename>:

$ wc -l < /dir/file.txt
3272485

You can also pipe data to wc as well:

$ cat /dir/file.txt | wc -l
3272485
$ curl yahoo.com --silent | wc -l
63

get count of the word in all files

Try something like this:

find . -type f | xargs -n1 grep "Hello" -c

Adding -type f to find ensures that it only returns files, not directories. Adding -n1 to xargs makes it so that every file returned by find gets its own invocation of grep, so that you can get a per-file count. The -c argument to grep returns the count of matches instead of every match.

The above expression will count the number of lines that have 'Hello' in them. If you need the total number of Hellos, instead of just the number of lines that have Hello in them, you'll need to do something more sophisticated. You can use the -o option on grep to just print the matching section of a line, and then combine that with wc -l to get the number of total occurrences.

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