Need gzip examples in pipe

For a learning purposes I search a simple examples for using gzip in pipe
with basic linux commands
Something like
......   | gzip -c > .....
......   | gzip -d > .....

(not only tar nor , I need a factics output for any simple Linux commands )
Can anybody help me quick ???


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255x4Connect With a Mentor Commented:
The pipe ( | ) command is simply a way of redirecting stdout information, and sending it to another command as if it was text being entered to it.  For gzip, this would be in place of telling gzip to compress a particular file, but rather compress the stdout data until it reaches an EOF (End Of File) statement.

Note, the pipe does not allow program interaction, it does not output the stderr signal, just stdout.  There is no way for the next program to know if something went wrong.  Nor can later programs communicate with previous programs.  This is a one way, stream only, signal.

If you wish to take stdout data, pipe it to gzip, then have that go to the stdout and possibly be piped somewhere else, then here ya go:

{command} | gzip -f | {other command}


cat examplefile.txt | gzip -f |

I really can't think of anything to do with this binary stream after gzip'ing it, but if you want to, do what you will.

Hi hatina,

check gzip man page for more examples
cat file1 file2 | gzip > foo.gz
gzip -cd old.gz | gzip > new.gz

hatinaAuthor Commented:
I do not need simple gzip using,...
I need a practical examples cooperative with another Linux commands through pipe.........!!!!!!!!!!!!
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Which commands ?? The above are as good as practical exmaples ... you can complicate either side of pipe as much as you desire

cat file1 file2 | gzip > foo.gz

can be morphed to

find <some_dir> -type f -name "foo" -exec car {} \; | gzip > total_foo.gz
find <some_dir> -type f -name "foo" -exec cat {} \; | gzip > total_foo.gz
There is always the simple

gzip -c (file.tgz) | tar xvf -
I hate it when fingers slip off the keys...   There is a missing key in there.

gzip -cd (file.tgz) | tar x

or for those of us who like output

gzip -cd (file.tgz) | tar xv

or still

gzip -cd (file.tgz) | tar xvf -
Another practical example ;-)
Say, you have to capture all packets going through your network interface for some time and you may want to store it in an archive. You may then use a command like follows:
tcpdump -s0 -X -vv | gzip > dump.gz
(You have to kill tcpdump from another terminal. If you press Ctrl+C in the same terminal, gzip cannot close the archive properly.)
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