[Bug-tar] How one can do untar a file and gzip its files with one command line?

[Ehsan Hajiramezanali]

Hi

I want to untar a file and directly gzip its contents in one command line.

I have the following example to create the files:

~~~
tmpdir=$(mktemp -d)
tarfile=file.tar.gz
file1=file1.fastq
file2=file2.fastq

cd "$tmpdir"

cat > "$file1" <<EOF
>A
ABCD
EOF

cat > "$file2" <<EOF
>B
ABCDEF
EOF

tar cvf "$tarfile" "$file1" "$file2"
~~~

I want to untar the original file (i.e. file.tzr.gz) and directly gzip
the untar files (i.e. file1.fastq and file2.fastq) with one command
and have the following files:

file1.fastq.gz
file2.fastq.gz

The way that I apply now is the following commands:

~~~
tar xvfz "$tarfile"
gzip *.fastq
~~~

However, I do not want the intermediate files  between untar and gzip.
Is there any way to do both the command lines in one command line?

Thanks in advance.

Best regards,
Ehsan