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I typed in hello on a server I logged in after a long time, as a humorous greeting. I got this:

ubuntu@server:~$ hello
The program 'hello' can be found in the following packages:
 * hello
 * hello-debhelper
Try: sudo apt-get install <selected package>

So what are hello and hello-debhelper programs? What are they used for?

This seems impossible to Google, btw.

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    You can install it and run man hello.
    – Pilot6
    Commented Aug 13, 2016 at 9:36
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    sorry??? manpages.ubuntu.com/manpages/trusty/man1/hello.1.html If I can find it in less than a minute... so can you :+) and info help @pilot6 shows the manual :)
    – Rinzwind
    Commented Aug 13, 2016 at 9:37
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    @Pilot6 Good suggestion, but I wanted to know what it is first, before installing anything. But it seems like nothing to worry about. (Found that by Googling linux man hello, which I didn't think of before.)
    – ADTC
    Commented Aug 13, 2016 at 9:40
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    To add another command to get information about that package: apt-cache show hello
    – Thomas
    Commented Aug 13, 2016 at 9:40
  • @Thomas great suggestion! Make it an answer.
    – ADTC
    Commented Aug 13, 2016 at 9:42

2 Answers 2

Reset to default
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One possible solution could be as follows:

apt-cache show hello
apt-cache show hello-debhelper
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In order to test if the Software application in Ubuntu is working properly, you can install a little application called hello and give it a try from the terminal.

The hello program from the default Ubuntu repositories outputs Hello, world!

~$ hello
Hello, world!

hello-debhelper is an example of how to do a Debian package. hello-debhelper is the same as the hello package, except it uses debhelper to make the deb. debhelper is a collection of programs that can be used in a debian/rules file to automate common tasks related to building Debian packages (Ubuntu uses the same packaging system as Debian).

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  • I think it would be useful to mention that what deb packages are , just to make it clear for the newbies
    – Sergiy Kolodyazhnyy
    Commented Dec 12, 2016 at 11:31

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