How do I install VueScan from the Linux archive?

The easier route depends on your Linux distribution. Run `cat /etc/os-release` to identify it. Debian, Ubuntu, and Mint generally use the `.deb` package, which can usually be installed with `sudo apt install /path/to/the/file.deb`. Fedora-based systems use an `.rpm` package instead. Installing the matching package avoids having to manually copy the icon, executable, and device rules.

That error usually means the terminal is not currently in the folder containing the VueScan files, or the filename was copied incorrectly. First extract the `.tgz` archive, open a terminal in the extracted directory, and check the filenames with `ls`. Make sure it is `vuescan.svg` with no space before `.svg`. Then run each command separately, rather than pasting the whole README as one line: `sudo cp vuescan.svg /usr/share/icons/hicolor/scalable/apps/`, `sudo cp vuescan.rules /lib/udev/rules.d/60-vuescan.rules`, and `sudo cp vuescan /usr/bin/`. Afterward, run `sudo udevadm control --reload-rules`. The README appears to contain formatting or transcription errors, including `sudo co` instead of `sudo cp` and a broken reload command.

You may not need VueScan at all unless you specifically require one of its features. `simple-scan` is free and often already available through the normal package manager. NAPS2 is another alternative with a Linux package. VueScan may also add a watermark unless it is registered, so checking a free scanner application first could save some hassle.