I tried to install TREE via the sudo apt-get install tree command but nothing but an error happens ("sudo: apt-get: command not found"). How do I fix this?

  • Could you post what errors apt-get writes?
    – Mathieu
    Dec 11, 2015 at 11:51
  • Whick kind of error? It could be about permissions, dependencies, etc.
    – jcbermu
    Dec 11, 2015 at 11:51
  • @jcbermu sudo: apt-get: command not found
    – Ergkjr
    Dec 11, 2015 at 11:59
  • 1
    If its custom build linux system, it may not even have a package management system, you may have to build all software from sources. You can find sources for tree from here mama.indstate.edu/users/ice/tree .
    – StefanR
    Dec 11, 2015 at 12:17
  • 1
    Then let's hope a compiler is installed :). Or check if at least wget or curl is installed, so you can download the binaries.
    – Daniel
    Dec 11, 2015 at 12:25

1 Answer 1



A system built on Linux is called a "distribution".

Distribution examples:

  • Ubuntu
  • Debian
  • Fedora
  • Arch
  • OpenSuse
  • ...

To install a software on a distribution, you have several possibilities:

  • Build the software from source,
  • Install the program with a "package manager".

Package manager

Almost each distribution use one package manager, most known are:

  • apt-get (debian, ubuntu)
  • pacman (arch)
  • yum (fedora)
  • ...

Each package manager has its syntax, type man <package manager>.

Build from source

It will depends on the software you want to install, but in most cases:

  • get the sources:
    • go to software web page
    • download the source (.tar.gz, .tgz, .zip... file)
    • uncompress it
  • build it:

    # in software source directory
    make install
  • Okay, so I presume that I download the source because everything else doesn't work?
    – Ergkjr
    Dec 11, 2015 at 12:21
  • I think so. Downloald the tgz file from tree site (StefanR gives you the link), unzip it, and try to build it.
    – Mathieu
    Dec 11, 2015 at 12:24
  • I also often install things from source on Debian, even althought that distro has a very nice pacakge management. I do it because when I install from source I get newer versions and features.
    – Daniel
    Dec 11, 2015 at 12:24

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .