cups-config, cupsd, lpinfo: add page (#6623)

pages/common/cupsd.md

@@ -0,0 +1,36 @@
+# cupsd
+
+> Server daemon for the CUPS print server.
+> More information: <https://www.cups.org/doc/man-cupsd.html>.
+
+- Start `cupsd` in the background, aka. as a daemon:
+
+`cupsd`
+
+- Start `cupsd` on the [f]oreground:
+
+`cupsd -f`
+
+- [l]aunch `cupsd` on-demand (commonly used by `launchd` or `systemd`):
+
+`cupsd -l`
+
+- Start `cupsd` using the specified [`c`]`upsd.conf` configuration file:
+
+`cupsd -c {{path/to/cupsd.conf}}`
+
+- Start `cupsd` using the specified `cups-file`[`s`]`.conf` configuration file:
+
+`cupsd -s {{path/to/cups-files.conf}}`
+
+- [t]est the [`c`]`upsd.conf` configuration file for errors:
+
+`cupsd -t -c {{path/to/cupsd.conf}}`
+
+- [t]est the `cups-file`[`s`]`.conf` configuration file for errors:
+
+`cupsd -t -s {{path/to/cups-files.conf}}`
+
+- Display all available options:
+
+`cupsd -h`