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pigz:tldr:3f3d3
This command is using the "pigz" utility to decompress a specified gzip archive file.
Here's an explanation of each part of the command:
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"pigz": It refers to the executable or command that is being run. "pigz" stands for parallel implementation of gzip, and it is a utility used for compressing and decompressing files.
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"-d": It is an option or flag that specifies the decompression operation to be performed. With this flag, "pigz" will decompress the specified gzip archive file.
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"${archive-gz}": This is a placeholder or variable that represents the name of the gzip archive file. The actual file name should be substituted in its place. For example, if the gzip archive file is named "myfile.gz", the command would be: "pigz -d myfile.gz".
Overall, the "pigz -d" command decompresses the specified gzip archive file using the "pigz" utility.