*unzip
Decompresses a file using gunzip, unzip, bunzip. Takes a zip file and yields a decompressed file.
*zip
Compress a file using gzip, zip, or bzip which yields a compressed .gz, .zip, or .bz file.
tar
Create or extract archive files using many files
tar -cf archive.tar file1, file2, file3
tar -xf archive.tar
gpd
Encrypt and decrypt files.
Encrypt:
gpg -c my_text.txt
Decrypt:
gpg my_text.txt