lz4:tldr:0375a

The command "lz4 -dc ${file-lz4}" is used to decompress a file that has been compressed using the LZ4 compression algorithm.

Here's a breakdown of the command:

• "lz4" is the name of the command-line utility used to compress and decompress files using the LZ4 algorithm. It is being called here to decompress a file.

• "-dc" are command-line options for the lz4 command.

  • The "-d" option stands for decompress, indicating that the file passed as an argument should be decompressed.
  • The "-c" option stands for "stdout" or "standard output". It directs the decompressed output to the standard output stream instead of creating a new file.

• "${file-lz4}" is a placeholder that represents the file to be decompressed. The actual filename should be provided in place of "${file-lz4}" when executing the command.

So, if you replace "${file-lz4}" with an actual file name, the command will decompress the specified LZ4 compressed file and display the decompressed output on the screen.