# extract specific file(s) from tar.gz
tar -zxvf <tar filename> <file you want to extract>

# -x: instructs tar to extract files.
# -f: specifies filename / tarball name.
# -v: Verbose (show progress while extracting files).
# -z: filter archive through gzip, use to decompress .gz files.
# -t: List the contents of an archive
# https://unix.stackexchange.com/questions/61461/how-to-extract-specific-files-from-tar-gz