What wc -l does
wc -l notes.txt: Count the lines in a file.
The wc command page covers what it does in general, with an example.
wc-lnotes.txt
wc— command — count lines / words / characters-l— flag — linesnotes.txt— argument: a file, a folder, or text
What it does when you run it
$ wc -l notes.txt
4 notes.txt
Run it yourself
The same files. Nothing here can break, and nothing leaves your browser.
Where you use it
Explain other commands
Written by Mikhail Kuzmitskii