𝐖𝐡𝐚𝐭 𝐢𝐬 𝐥𝐬?

The first command we learn is 𝐥𝐬. This is the list command. It allows us… list the content of the directory.
𝐥𝐬 is the command we can encounter in all 𝐋𝐢𝐧𝐮𝐱 and 𝐔𝐧𝐢𝐱 𝐬𝐲𝐬𝐭𝐞𝐦𝐬. We can see it as one of the ‘𝐜𝐨𝐫𝐞’ commands in the system.

𝐎𝐤, 𝐥𝐞𝐭’𝐬 𝐩𝐥𝐚𝐲 𝐰𝐢𝐭𝐡 𝐢𝐭 𝐚 𝐥𝐢𝐭𝐭𝐥𝐞.
Run 𝐥𝐬

What we see on the screen is a 𝐥𝐢𝐬𝐭 of the content of the current directory.
What is visible immediately, that we have different colors. We can imagine what it means, but let’s forget it for a second. What many waves of “𝐜𝐥𝐚𝐬𝐬𝐢𝐜” sys admins saw in their days:

𝐥𝐬 — 𝐜𝐨𝐥𝐨𝐫=𝐧𝐨

So, this leads us to the first output, the colorized list of content. In order to have it, we need to run

𝐥𝐬 — 𝐜𝐨𝐥𝐨𝐫=𝐲𝐞𝐬

or, alternatively for now

𝐥𝐬 — 𝐜𝐨𝐥𝐨𝐫=𝐚𝐮𝐭𝐨 .

For now, it will be enough to say, this colorized option is added as default in one place in the system, we will go there in one of the future lessons.