qrencode 命令

常用示例

说明

qrencode is a command-line QR code generator built on the libqrencode library. It encodes text into QR codes and outputs them in multiple formats including PNG, SVG, EPS, ANSI terminal art, and ASCII, making it suitable for both display and print use cases. Options control the error correction level (L/M/Q/H), QR version (which determines capacity and physical size), and module size for raster output. Input can come from command-line arguments or standard input, supporting integration into scripts and pipelines.

参数

-o _FILE_, --output=_FILE_

Output file. Use "-" for stdout.

-t _TYPE_, --type=_TYPE_

Output type: PNG, PNG32, SVG, EPS, XPM, ANSI, ANSI256, ASCII, ASCIIi, UTF8, UTF8i, ANSIUTF8, ANSIUTF8i, ANSI256UTF8.

-s _NUMBER_, --size=_NUMBER_

Module (dot) size in pixels (default: 3).

-l {L|M|Q|H}, --level={L|M|Q|H}

Error correction level from L (lowest) to H (highest). Default: L.

-v _NUMBER_, --symversion=_NUMBER_

Minimum QR symbol version (default: auto).

-m _NUMBER_, --margin=_NUMBER_

Margin width in modules (default: 4).

-d _NUMBER_, --dpi=_NUMBER_

DPI for PNG output (default: 72).

-r _FILE_, --read-from=_FILE_

Read input data from file.

-8, --8bit

Encode entire data in 8-bit mode.

-M, --micro

Encode as Micro QR Code.

-i, --ignorecase

Ignore case and use only uppercase characters.

--foreground=_RRGGBBAA_

Set foreground color in hexadecimal.

--background=_RRGGBBAA_

Set background color in hexadecimal.

--svg-path

Use single path to draw modules in SVG.

--inline

Generate SVG without the XML declaration.

--strict-version

Disable automatic version adjustment.

-V, --version

Display version number.