How to count lines in a document?

Question

I have lines like these, and I want to know how many lines I actually have...

09:16:39 AM  all    2.00    0.00    4.00    0.00    0.00    0.00    0.00    0.0         


        

Answer 1

count number of lines and store result in variable use this command:

count=$(wc -l < file.txt) echo "Number of lines: $count"

Answer 2

To count all lines use:

$ wc -l file

To filter and count only lines with pattern use:

$ grep -w "pattern" -c file  

Or use -v to invert match:

$ grep -w "pattern" -c -v file 

See the grep man page to take a look at the -e,-i and -x args...

Answer 3

wc -l file.txt | cut -f3 -d" "

Returns only the number of lines

Answer 4

there are many ways. using wc is one.

wc -l file

others include

awk 'END{print NR}' file

sed -n '$=' file (GNU sed)

grep -c ".*" file

Answer 5

Above are the preferred method but "cat" command can also helpful:

cat -n <filename>

Will show you whole content of file with line numbers.

Answer 6

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