gzip:tldr:6ebef
gzip: Compress a file, replacing it with a gzipped compressed version.
$ gzip ${file-ext}
try on your machine
The gzip command is used to compress files in Linux or Unix systems. It compresses the given file and replaces it with a new file with the same name but with a .gz extension.
In the command gzip ${file-ext}, ${file-ext} refers to a variable holding the name of the file that needs to be compressed. By using ${file-ext}, the command indicates that the variable should be substituted with the actual file name.
For example, if the variable ${file-ext} contains the value myfile.txt, the command gzip ${file-ext} will compress the myfile.txt file and create a new compressed file called myfile.txt.gz in the current directory.
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.