steps-02-system

#! /usr/bin/env sh

set -e                              # Stop on the 1st error
set -x                              # Be verbose

apt install    sudo
apt install -y vim
apt install -y htop iotop-c
apt install -y traceroute           # for TCP tracing
apt install -y asciinema
apt install -y git
apt install -y tree
apt install -y elinks
apt install -y tmux
apt install -y colordiff
apt install -y pv
apt install    ipcalc
#apt install -y ansible              # for automating things
apt install    psmisc               # for pstree
# TODO: Choose between 3-4 variants in future including:
             # ncat                    | NMAP netcat reimplementation
             # netcat                  | TCP/IP swiss army knife -- transitional package
             # netcat-openbsd          | TCP/IP swiss army knife
             # netcat-traditional      | TCP/IP swiss army knife
             # netrw                   | netcat like tool with nice features to transport files over network
apt install    netcat-openbsd       # for nc, very useful debugging tool

cd /etc
etckeeper vcs add .
etckeeper vcs commit -m "Snapshotting from the script $0" -a

cat <<- \
	---------------------------------------------------------------------- |
	# Enable all functions of sysrq:
	
	kernel.sysrq = 1
	
	# See /etc/sysctl.d/10-magic-sysrq.conf for the details.
	----------------------------------------------------------------------
    tee /etc/sysctl.d/98-magic-sysrq-all-fns.conf | sudo sysctl -p-
etckeeper vcs add /etc/sysctl.d/98-magic-sysrq-all-fns.conf
etckeeper vcs commit -m 'sysctl.d/98-magic-sysrq-all-fns.conf: Enable all functions of sysrq' -a