Learn to list files and directories at the Linux command line.
Linux ls command summary with examples (3:49)
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Our seventh word, or command to memorize is
ls from the category Navigation.
ls allows you to list files in a
directory. In our last video we used
pwd to find the directory name, now
with ls we can look inside it.
If it helps, think of commands as mini programs and most have this
structure. First, type the
command, second the
-option(s) and third the
ls command has over
30 options and its argument can be a different
directory than your current directory, or it can be a wildcard to show
files or directories of a certain type.
Now, we will focus on two options, but I think you'll benefit from
knowing other options, so please review the
man ls page later.
ls -a, which lists all files.
By default, files that start with a 'dot'
. are for profile settings
and are not listed without
-l lists details of each
file (or directory).
So why is
ls an important command?
Well, Linux is an open language, and to get around and make it useful
you need to explore and view files.
And now you know how to do that.
Okay, the best way to embed this in your memory is by typing in your own terminal window.
Find this on your Mac using a program called Terminal. On Linux use Terminal or Konsole, and currently Microsoft is adding this functionality to Windows 10.
Here we go, start with
ls and no
options and no arguments and there is the text file we created in
ls -a to include
semi-hidden configuration files.
Third, let's use the
ls -l option
to see permissions, owners, file size, date modified and the file name.
And last, put two options together, in either order, and inspect.
Okay now you know how to use
And you know the syntax for commands, options and arguments.
One last tip about the
Many users customize their
command to save keystrokes, and we'll cover how to do this later.
Okay, thanks for visiting today. I hope this was a fun introduction
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pwdcommand, hit Back.
cd, click Next.