Stop Firefox from turning localhost into www.localhost.com

In URL bar, enter about:config

Search for setting browser.fixup.alternate.enabled and set to false

Upgrade git from upstream

(Debian)

As of 2015, most Debian variants provide git 1.9.4. To upgrade to the 2.x line, use the Git core PPA as follows:

sudo add-apt-repository ppa:git-core/ppa
sudo apt-get update
sudo apt-get install git

$ git --version
git version 2.5.0

Install emacs from source

mkdir /tmp/emacs

cd /tmp/emacs

wget https://ftp.gnu.org/pub/gnu/emacs/emacs-24.4.tar.xz 

tar xvf emacs-24.4.tar.xz 

cd emacs-24.4 

./configure --prefix=/usr        \
            --without-gnutls     \
            --localstatedir=/var &&
make

if make succeeds, you can test the result by running src/emacs -Q 

sudo make install && sudo chown -v -R root:root /usr/share/emacs/24.4

For a desktop launcher:

vim cat <<EOF > /usr/share/applications/emacs.desktop 

[Desktop Entry]
Version=1.0
Name=Emacs-24
Exec=/usr/local/bin/emacs
Terminal=false
Icon=emacs
Type=Application
Categories=IDE
[NewWindow Shortcut Group]
Name=New Window

EOF

Desktop .bashrc

case $- in
    *i*) ;;
      *) return;;
esac

shopt -s histappend
HISTSIZE=1000
HISTFILESIZE=2000
HISTCONTROL=ignoreboth

shopt -s checkwinsize

if [ -z "${debian_chroot:-}" ] && [ -r /etc/debian_chroot ]; then
    debian_chroot=$(cat /etc/debian_chroot)
fi

case "$TERM" in
    xterm|xterm-color|*-256color) color_prompt=yes;;
esac

force_color_prompt=yes

case "$TERM" in
xterm*|rxvt*)
    LIGHT_GRAY="\[\033[0;37m\]"; BLUE="\[\033[1;36m\]"; RED="\[\033[0;31m\]"; LIGHT_RED="\[\033[1;31m\]";
    GREEN="\[\033[0;32m\]"; WHITE="\[\033[1;37m\]"; LIGHT_GRAY="\[\033[0;37m\]"; YELLOW="\[\033[1;33m\]";
    function parse_git_branch {
        git branch --no-color 2> /dev/null | sed -e '/^[^*]/d' -e 's/* \(.*\)/ \(\1\)/';
    }
    function parse_git_status {
        git status 2> /dev/null | sed -e '/(working directory clean)$/!d' | wc -l;
    }
    function check_git_changes {
        # tput setaf 1 = RED, tput setaf 2 = GREEN
        [ `parse_git_status` -ne 1 ] && tput setaf 1 || tput setaf 2
    }
    export PS1="($(whoami)@$(hostname)) \[$(tput bold)\]\[$(tput setaf 2)\]$(date +%F\|%R) $YELLOW\w\[\$(check_git_changes)\]\$(parse_git_branch)$LIGHT_GRAY\n $ "
    export PS4='+(${BASH_SOURCE}:${LINENO})'
    ;;
*)
    ;;
esac

set -o emacs
umask 002
export HISTTIMEFORMAT="%F %T "
shopt -s histappend

export TZ='/usr/share/zoneinfo/US/Eastern'
export PROMPT_COMMAND="${PROMPT_COMMAND:+$PROMPT_COMMAND$'\n'}history -a; history -c; history -r"

alias l='ls -lF'
alias ll='ls -alF'

if [ -x /usr/bin/dircolors ]; then
    test -r ~/.dircolors && eval "$(dircolors -b ~/.dircolors)" || eval "$(dircolors -b)"
    alias ls='ls --color=auto'
    alias grep='grep --color=auto'
    alias fgrep='fgrep --color=auto'
    alias egrep='egrep --color=auto'
fi

export JAVA_HOME=/usr/lib/jvm/java-8-openjdk-amd64/jre

Export Gimp layers as separate files

Install plugin at https://github.com/khalim19/gimp-plugin-export-layers

Extract the export_layers.py file and the export_layers directory to [home directory]/.gimp-2.8/plug-ins.

If necessary, make the export_layers.py file executable, e.g. from the terminal:

chmod +x "export_layers.py"

Collate PDF documents

pdftk $(ls file*.pdf|sort) cat output combined.pdf

Tech links

• Vert.x: Reactive server for the JVM
• Wildfly, Apiman, Keycloak