base64:tldr:e841b
base64: Decode from `stdin`.
$ ${somecommand} | base64 --decode
try on your machine
This command takes the output of the command ${somecommand} and pipes it (|) to the base64 --decode command.
${somecommand} refers to some command or variable which produces a base64-encoded output. The pipe symbol (|) is a way to redirect the output of one command to another command as input.
The base64 --decode command is used to decode base64-encoded data. It takes the base64-encoded input from the previous command and decodes it back into its original form.
In summary, this command is used to decode base64-encoded data that is produced as output by ${somecommand}.
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.