cups(1)

💖 cups(1) 💖

okay so bestie, welcome to the cups(1) manual page — this is the OpenPrinting printing system and honestly? she's iconic. let's get into it.

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✨ NAME ✨

cups — a standards-based, open source printing system 🖨️

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🌸 DESCRIPTION 🌸

So like, CUPS is the software you use to print from applications — word processors, email readers, photo editors, web browsers, all of them. What it does is it takes the page descriptions your app produces (put a paragraph here, draw a line there, and so forth) and converts them into something your printer can actually understand, and then it sends that info to the printer for printing. no cap. 🎀

Now here's the thing bestie — every printer manufacturer does things differently, so printing can be very complicated. CUPS does its best to hide all that from you and your application so you can concentrate on printing and less on how to print. Generally, the only time you need to know anything about your printer is when you use it for the first time — and even then, CUPS can often figure things out on its own. she's self-sufficient like that 💅

🦋 HOW DOES IT WORK? 🦋

The first time you print to a printer, CUPS creates a queue to keep track of the current status of the printer (everything OK, out of paper, etc.) and any pages you have printed. Most of the time the queue points to a printer connected directly to your computer via a USB port — but it can also point to a printer on your network, a printer on the Internet, or multiple printers depending on the configuration. And regardless of where the queue points, it will look like any other printer to you and your applications. main character energy for real. ✨

Every time you print something, CUPS creates a job which contains the queue you are sending the print to, the name of the document you are printing, and the page descriptions. Jobs are numbered (queue-1, queue-2, and so forth) so you can monitor the job as it is printed or cancel it if you see a mistake. When CUPS gets a job for printing, it determines the best programs (filters, printer drivers, port monitors, and backends) to convert the pages into a printable format and then runs them to actually print the job. it's giving project manager honestly 🧚

When the print job is completely printed, CUPS removes the job from the queue and moves on to any other jobs you have submitted. You can also be notified when the job is finished, or if there are any errors during printing, in several different ways. 🫶

🌈 WHERE DO I BEGIN? 🌈

The easiest way to start is by using the web interface to configure your printer. Go to "http://localhost:631" and choose the Administration tab at the top of the page. Click/press on the Add Printer button and follow the prompts. yes bestie, it's literally just that. 😭

When you are asked for a username and password, enter your login username and password or the "root" username and password.

After the printer is added you will be asked to set the default printer options (paper size, output mode, etc.) for the printer. Make any changes as needed and then click/press on the Set Default Options button to save them. Some printers also support auto-configuration — click/press on the Query Printer for Default Options button to update the options automatically. obsessed. 💖

Once you have added the printer, you can print to it from any application. You can also choose Print Test Page from the maintenance menu to print a simple test page and verify that everything is working properly. vibe check passed. ✅

You can also use the lpadmin(8) and lpinfo(8) commands to add printers to CUPS. Additionally, your operating system may include graphical user interfaces or automatically create printer queues when you connect a printer to your computer.

💜 HOW DO I GET HELP? 💜

The OpenPrinting CUPS website (https://openprinting.github.io/cups) provides access to the cups and cups-devel mailing lists, additional documentation and resources, and a bug report database. Most vendors also provide online discussion forums to ask printing questions for your operating system of choice. go ask, we don't gatekeep here 🌸

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🎀 ENVIRONMENT 🎀

CUPS commands use the following environment variables to override the default locations of files and so forth.

⚠️ For security reasons, these environment variables are ignored for setuid programs. periodt, no exceptions.

• CUPS_ANYROOT — Whether to allow any X.509 certificate root (Y or N).
• CUPS_CACHEDIR — The directory where semi-persistent cache files can be found.
• CUPS_DATADIR — The directory where data files can be found.
• CUPS_ENCRYPTION — The default level of encryption (Always, IfRequested, Never, Required).
• CUPS_EXPIREDCERTS — Whether to allow expired X.509 certificates (Y or N).
• CUPS_GSSSERVICENAME — The Kerberos service name used for authentication.
• CUPS_SERVER — The hostname/IP address and port number of the CUPS scheduler (hostname:port or ipaddress:port).
• CUPS_SERVERBIN — The directory where server helper programs, filters, backend, etc. can be found.
• CUPS_SERVERROOT — The root directory of the server.
• CUPS_STATEDIR — The directory where state files can be found.
• CUPS_USER — Specifies the name of the user for print requests.
• HOME — Specifies the home directory of the current user.
• IPP_PORT — Specifies the default port number for IPP requests.
• LOCALEDIR — Specifies the location of localization files.
• LPDEST — Specifies the default print queue (System V standard).
• PRINTER — Specifies the default print queue (Berkeley standard).
• TMPDIR — Specifies the location of temporary files.

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🍓 FILES 🍓

~/.cups/client.conf
~/.cups/lpoptions

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⭐ CONFORMING TO ⭐

CUPS conforms to the Internet Printing Protocol version 2.1 and implements the Berkeley and System V UNIX print commands. she's certified, she's legit, she's got the credentials. 👑

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💀 NOTES 💀

🚨 CUPS printer drivers, backends, and PPD files are deprecated and will no longer be supported in a future feature release of CUPS. Printers that do not support IPP can be supported using applications such as ippeveprinter(1). bestie please plan accordingly, this is your heads up fr fr 😭

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🔥 SEE ALSO 🔥

cancel(1), client.conf(5), cupsctl(8), cupsd(8), lp(1), lpadmin(8), lpinfo(8), lpoptions(1), lpr(1), lprm(1), lpq(1), lpstat(1), CUPS Online Help (http://localhost:631/help), OpenPrinting CUPS Web Site (https://openprinting.github.io/cups), PWG Internet Printing Protocol Workgroup (http://www.pwg.org/ipp)

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🌟 COPYRIGHT 🌟

Copyright © 2020-2024 by OpenPrinting.

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and that's the whole thing, bestie 🎀✨ this was the cups(1) page from the CUPS manual, dated 2021-02-28 — mwah, iconic, no notes 💖🦋💅