dasel

dasel [flags] command [args]

--version
    Show application version.

--plain
    Disable colored output.

--pretty
    Enable pretty output.

-w, --write
    Update the input file.

-i, --input-format format
    The format of the input, can be: json, yaml, toml, xml, csv, ini, properties.

-o, --output-format format
    The format of the output, can be: json, yaml, toml, xml, csv, ini, properties.

get
    Gets properties from the given document.

put
    Puts a value into the given document.

delete
    Deletes a property from the given document.

merge
    Merges the contents of given documents into the first document.

dasel is a command-line tool designed for selecting, modifying, and querying data structures stored in various formats such as JSON, YAML, TOML, XML, CSV, and others.
It allows users to extract specific values from structured data, apply transformations, and perform filtering operations without needing to write complex scripts or code.
dasel simplifies the process of working with data from the command line, making it easier to automate tasks, process configuration files, and integrate different data sources. Its intuitive syntax and support for multiple data formats make it a versatile tool for developers, system administrators, and data analysts. It's particularly useful for extracting specific pieces of information from configuration files or APIs where data is formatted in JSON/YAML.

dasel's XPath support can be limited depending on the XML structure. Complex transformations might require scripting instead. CSV support may require specifying delimiters and header options. Using 'write' is potentially dangerous since data can be lost.

dasel uses a selector syntax similar to XPath or CSS selectors to identify elements within the data structure.
Selectors can include nested paths, array indices, and wildcard characters.
For JSON/YAML, dots `.` are used to traverse objects. For Arrays the index can be defined like `.[0]`.

dasel attempts to automatically detect and preserve data types when modifying data.
When setting values, it infers the type from the provided input.

dasel provides informative error messages when parsing data or executing commands.
It attempts to handle invalid data gracefully, but errors may still occur with malformed inputs.

dasel is a relatively new command-line tool. It aims to provide a more user-friendly and versatile alternative to tools like `jq` and `yq` with support for more data formats. Its development is focused on ease of use and comprehensive data access.

jq(1), yq(1), sed(1), awk(1)