jello:tldr:4a099
jello: Output the first element in JSON or JSON-Lines data from `stdin` to `stdout`.
$ cat ${file-json} | jello _[0]
try on your machine
This command uses the "cat" command to display the contents of the file specified by the variable "file-json". The "|" symbol is a pipe, which connects the output of the "cat" command to the input of the "jello" command.
The "jello" command with "_[0]" is most likely an instruction to perform some operation on the input data. The exact purpose of this command cannot be determined without more information about the "jello" command and the context in which it is being used.
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.