Install new versions of emacs and git on CentOS 6

install-emacs-25.sh

#!/bin/sh -ex

# update the PATH ...
PATH="/usr/local/bin:${PATH}"

# install autoconf ...
cd /tmp
wget http://ftp.gnu.org/gnu/autoconf/autoconf-2.69.tar.gz
tar xvfvz autoconf-2.69.tar.gz
cd autoconf-2.69
./configure
make && make install

# install automake, ncurses-devel ...
yum install -y automake ncurses-devel

# install emacs ...
cd /tmp
wget "http://ftp.heanet.ie/mirrors/gnu/emacs/emacs-25.2.tar.gz"
tar xzf emacs-25.2.tar.gz
cd emacs-25.2
./autogen.sh
./configure --with-x=no --without-makeinfo
make && make install

install-git.sh

#!/bin/sh -ex

# install the deps
yum install -y asciidoc gettext xmlto

# specify the version to download
version=${1:-2.16.1}

# download the source
cd /tmp/
wget "https://www.kernel.org/pub/software/scm/git/git-${version}.tar.gz"
tar xzf git-${version}.tar.gz 
cd git-${version}

# configure make and install
make configure
./configure --prefix=/usr/local --with-perl="/opt/xt/xt-perl/bin/perl" --without-tcltk
make all doc
make install

# setup bash completion
wget -O "/etc/bash_completion.d/git-completion.bash" "https://raw.githubusercontent.com/git/git/master/contrib/completion/git-completion.bash"