There is no such command as zdump in Linux. However, there is a command called gzip that can be used to compress files.
Here are some examples of how to use the gzip command:
To compress the file file.txt and output the compressed data to stdout:
gzip -c file.txt
To decompress the file file.txt.gz:
gzip -d file.txt.gz
To show help for the gzip command:
gzip --help
-c, --stdout: This option compresses the file and outputs the compressed data to stdout.
-d, --decompress: This option decompresses the file.
-h, --help: This option shows this help message.