wc counts. It can count newlines, bytes, characters and words.
wc [option] [input-file]
Option is what do you want to count.
-lfor new lines (lines)
Let’s first create a test file that we will work on, and then we will start counting.
echo "this is a dummy file.nI am going to see how wc works" > test $wc -c test 54 test # 54 bytes $wc -m test 54 test # on my machine locale is UTF-8; so again 54 $wc -w test 12 test # 12 words $wc -l test 1 test # only one line in the file
We can also have all of them together.
$wc -clw test 1 12 54 test # sequence is always largest to smallest irrespective of the arguments
wc doesn’t work on directories but it does work on binary file for example images.
So you can find size of the file in bytes:
$wc -c image.jpg 2343344 image.jpg # Size of file is ~2343kb
-w returns a number but it doesn’t make any sense.
Note 1: The command also reads filenames from a file using
Note 2: There is a
-L option which I have not discussed here. I’ll leave it to you to explore
So this was a simple yet powerful wc command. It has one task, but it does it well.
$wc -w thisblogpost 233 thisblogpost