gzip:tldr:802f4

This command is used to decompress a file that has been compressed using the gzip utility. Here's a breakdown of the command:

• gzip: This is the command that invokes the gzip utility.
• -c: This option tells gzip to output the decompressed data to the standard output rather than directly modifying the input file.
• -d: This option instructs gzip to decompress the file.
• ${file-ext}.gz: This is the name of the input file to be decompressed. ${file-ext} is a placeholder that should be replaced with the actual file name or path.
• >: This symbol represents output redirection and is used to redirect the output of the command to a file.
• ${uncompressed_file-ext}: This is the name of the output file where the decompressed data will be stored. ${uncompressed_file-ext} is also a placeholder that should be replaced accordingly.

So, the command takes the compressed file indicated by ${file-ext}.gz, decompresses it using gzip, and then redirects the decompressed data to an uncompressed file named ${uncompressed_file-ext}.