Linuxbrew is a package manager that helps you install software to a home directory without using sudo.
In order to use Linuxbrew you have to install it. Paste at a Terminal prompt:
$ ruby -e "$(wget -O- https://raw.github.com/Homebrew/linuxbrew/go/install)"
$ echo -e 'export PATH="$HOME/.linuxbrew/bin:$PATH"\nexport MANPATH="$HOME/.linuxbrew/share/man:$MANPATH"\nexport INFOPATH="$HOME/.linuxbrew/share/info:$INFOPATH"' > ~/.bashrc && source ~/.bashrc
$ brew update $ brew doctor
and you are ready!
$ brew search
$ brew install $WHATEVER_YOU_WANT
You can find further information about Linuxbrew here.