murex rocks

Welcome

About

Install

Change Log

Blog

Technical Docs

User Guide

Quick Start

Syntax

Commands

Types

Open Source

Go APIs

GitHub repo

Search Site

murex Shell Docs

Parser Reference: Generic Pipe (=>) Token

Pipes a reformatted STDOUT stream from the left hand command to STDIN of the right hand command

Description

This token behaves much like the | pipe would except it injects format generic into the pipeline. The purpose of a formatted pipe is to support piping out to external commands which don’t support murex data types. For example they might expect arrays as lists rather than JSON objects).

Examples

» ja: [Mon..Wed] => cat
Mon
Tue
Wed

The above is literally the same as typing:

» ja: [Mon..Wed] -> format generic -> cat
Mon
Tue
Wed

To demonstrate how the previous pipeline might look without a formatted pipe:

» ja: [Mon..Wed] -> cat
["Mon","Tue","Wed"]

» ja: [Mon..Wed] | cat
["Mon","Tue","Wed"]

» ja: [Mon..Wed]
[
    "Mon",
    "Tue",
    "Wed"
]

See Also

• parser/Arrow Pipe (->) Token: Pipes STDOUT from the left hand command to STDIN of the right hand command
• parser/POSIX Pipe (|) Token: Pipes STDOUT from the left hand command to STDIN of the right hand command
• user-guide/Pipeline: Overview of what a “pipeline” is
• parser/STDERR Pipe (?) Token: Pipes STDERR from the left hand command to STDIN of the right hand command
• commands/<> / read-named-pipe: Reads from a murex named pipe
• commands/format: Reformat one data-type into another data-type
• commands/ja (mkarray): A sophisticated yet simply way to build a JSON array