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mlr:tldr:b88a4
mlr: Receive JSON data and pretty print the output.
$ echo '{"hello":"world"}' | mlr --ijson --opprint cat
try on your machine
The command you provided has two parts separated by the pipe symbol |
.
-
The first part is
echo '{"hello":"world"}'
. It uses theecho
command to output the string{"hello":"world"}
. The purpose of this part is to provide input data for the subsequent command. -
The second part is
mlr --ijson --opprint cat
. This is a command that uses a tool calledmlr
with specific options and thecat
command.
mlr
is a command-line tool for processing structured data such as CSV, JSON, etc.--ijson
is an option formlr
that specifies the input is in JSON format.--opprint
is another option formlr
that formats the output in a pretty-printed, human-readable form.cat
is a command used in Unix-like systems to concatenate and display the contents of files.
Therefore, when you execute the entire command, it will take the JSON string {"hello":"world"}
, pass it as input to mlr
, which will interpret it as JSON, then format and output it in a more readable form.
This explanation was created by an AI. In most cases those are correct. But please always be careful and
never run a command you are not sure if it is safe.