dasel 命令

常用示例

说明

dasel (Data Selector) is a command-line tool for querying and modifying structured data files. It provides a unified interface for working with JSON, YAML, TOML, XML, CSV, INI, and HCL formats using a consistent selector syntax. The tool supports three main operations: select for querying data, put for modifying or adding values, and delete for removing keys. Selectors use dot notation for nested access (e.g., `.database.host`) and bracket notation for array indices (e.g., `.users.0.name`). Dasel can convert between formats by specifying different input and output parsers, making it useful for configuration file transformations. It reads from files or stdin and writes to files or stdout, integrating well with shell pipelines.

参数

-f, --file _PATH_

Input file path; reads from stdin if omitted

-p, --parser _FORMAT_

Parser for input data (json, yaml, toml, xml, csv, ini, hcl); auto-detected from file extension

-w, --write _FORMAT_

Output format; defaults to input parser type

-t, --type _TYPE_

Value type for put command (string, int, bool, json)

-v, --value _VALUE_

Value to set with put command

-o, --out _FILE_

Output file path; writes to stdout if omitted

-r, --read _FORMAT_

Alias for --parser

--pretty

Pretty-print output for readability

-n, --null

Output null values explicitly

--colour, --color

Enable colored output

--escape-html

Escape HTML entities in output

-h, --help

Display help information

-v, --version

Display version information