Appendix

Appendix#

Here you may find conceptual content related to the exercises in the book.

qsv version#

qsv has multiple versions and may differ for each system. Here we run a command to show what version of qsv this book is using along with other information:

qsv --version

qsv 0.134.0-mimalloc-apply;fetch;foreach;geocode;Luau 0.640;to;polars-0.42.0-fe04390;self_update-4-4;12.49 GiB-4.00 GiB-14.48 GiB-15.61 GiB (x86_64-unknown-linux-gnu compiled with Rust 1.81) prebuilt

qsv release assets#

A mapping of qsv release files for an arbitrary version X.Y.Z and platforms they may run on are shown in the table below.

Table 1 qsv release assets (vX.Y.Z)#

File

Platform

qsv-X.Y.Z-x86_64-pc-windows-msvc.zip

64-bit MSVC (Windows 10+)

qsv-X.Y.Z.msi

Windows

qsv-X.Y.Z-x86_64-pc-windows-gnu.zip

64-bit MinGW (Windows 10+)

qsv-X.Y.Z-i686-pc-windows-msvc.zip

32-bit MSVC (Windows 10+)

qsv-X.Y.Z-aarch64-apple-darwin.zip

ARM64 macOS (11.0+, Big Sur+)

qsv-X.Y.Z-x86_64-apple-darwin.zip

64-bit macOS (10.12+, Sierra+)

qsv-X.Y.Z-aarch64-unknown-linux-gnu.zip

ARM64 Linux (kernel 4.1, glibc 2.17+)

qsv-X.Y.Z-x86_64-unknown-linux-gnu.zip

64-bit Linux (kernel 3.2+, glibc 2.17+)

qsv-X.Y.Z-x86_64-unknown-linux-musl.zip

64-bit Linux with musl 1.2.3

qsv-X.Y.Z-i686-unknown-linux-gnu.zip

32-bit Linux (kernel 3.2+, glibc 2.17+)

Note

The listed OS/architecture are primarily based on information from “The rustc book”.

Command data streams (stdin, stdout, and stderr)#

The terms stdin, stdout, and stderr may commonly be found within qsv’s source code and in the lessons.

Here’s a very brief explanation of what each means in the context of a command:

  • stdin (“Standard input”): Input data

  • stdout (“Standard out”): Output data

  • stderr (“Standard error”): Error output

Let’s consider the following pipeline as an example:

qsv clipboard | qsv stats -E

  • There are two commands ran here, each separated by a pipe (|).

  • The output (stdout) of qsv clipboard is used as the input (stdin) of qsv stats -E.

For further explanation you may read online articles regarding piping commands. You may view a few more examples here.

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