niun

## One line per log entry with merge graph
## (--decorate is implicit for newer git versions?):
#git log --graph --oneline --decorate

##                                                                             |
## Add --branches --remotes --tags --merges to see entries for all of the
## corresponding refs, not only commits (--all for all refs).

## Format output with --pretty=tformat:'<format>'
## Interesting placeholders for oneline <format>:

niun

#!/bin/sh
#
#  Read-only Root-FS for Raspian
#
#  Modified 2015 by Pascal Rosin to work on raspian-ua-netinst with
#  overlayfs integrated in Linux Kernel >= 3.18.
#
#  Originally written by Axel Heider (Copyright 2012) for Ubuntu 11.10.
#  This version can be found here:
#  https://help.ubuntu.com/community/aufsRootFileSystemOnUsbFlash#Overlayfs

niun

sudo nmap -sP 192.168.0.0/24 | awk '/^Nmap/{ip=$NF}/B8:27:EB/{print ip}'

niun

# Configuration file for tmux >= 2.1
# .tmux.conf gets automatically read if in user directory (~)

# use 256 colour terminal:
set -g default-terminal "screen-256color"

# enable mouse:
set -g mouse on

# Not needed in tmux 2.8?

niun

rsync -raXi      --size-only /path/to/folder-to-backup/ /destinations/path/to/folder-to-backup
same as
rsync -rlptgoDXi --size-only /path/to/folder-to-backup/ /destinations/path/to/folder-to-backup
same as
rsync -rlptgoDXi --size-only /path/to/folder-to-backup /destinations/path/to

-r recursive
-l preserve links
-p preserve permissions (also updates permission on not transferred files)
-t preserve time        (also updates time on not transferred files)

niun

http://tuxtweaks.com/2010/10/remove-old-kernels-in-ubuntu-with-one-command/
dpkg -l linux-* | awk '/^ii/{ print $2}' | grep -v -e `uname -r | cut -f1,2 -d"-"` | grep -e [0-9] | grep -E "(image|headers)" | xargs sudo apt-get -y purge

niun

apt-get install device-tree-compiler
wget https://raw.githubusercontent.com/raspberrypi/documentation/master/configuration/images/dt-blob.dts
# for example, set P1:26 (BCM pin 7) to active low (on Raspi B Rev2.0, in dts file from August): 
awk 'NR==104{print "                  pin@p7  { function = \"output\"; termination = \"pull_down\"; }; // SPI_CE1_N (P1:26)"}1' dt-blob.dts > dt-blob-mod.dts
dtc -I dts -O dtb -o /boot/dt-blob.bin dt-blob-mod.dts

niun

Connected to my ESP8266-ESP-03 with following baudrate settings

BAUD = 9600
BOOT_BAUD = 115200

esp8266_at_test.py prints this:

PINGING esp8266...
> AT

>

niun

sudo apt-get install build-essential cmake kdebase-workspace-dev libqjson-dev git libqca2-dev
git clone git://anongit.kde.org/kdeconnect-kde
cd kdeconnect-kde
cmake -DQT_QMAKE_EXECUTABLE=/usr/bin/qmake-qt4 -DCMAKE_INSTALL_PREFIX=$(kde4-config --prefix) ./
make
sudo make install
qdbus org.kde.kded /kded loadModule kdeconnect
kbuildsycoca4 -noincremental

niun

curl -G -s --data-urlencode "format=%FT%T%:z" http://www.timeapi.org/cet/now  # www.timeapi.org cet is CET/CEST. Don't use cest
date --iso-8601='seconds' -d "$(curl -s http://www.timeapi.org/utc/now)"      # www.timeapi.org use local timezone settings
date -d "$(curl -s http://www.timeapi.org/utc/now)" +"%FT%T (UTC%:z = %Z)"    # not quite ISO with timezone illustration
date -d "$(curl -s http://www.timeapi.org/utc/now)" +"%A %d.%m.%Y, %T (UTC%:z = %Z)" # non-ISO, easy readable by a german with day of week

date --iso-8601='seconds' -d "$(curl -s --head http://google.com | grep ^Date: | sed 's/Date: //g')" # google.com

date --iso-8601='seconds' -d "$(cat </dev/tcp/time.nist.gov/13 | cut -d' ' -f2,3) UTC" # NIST

 date --iso-8601='seconds' -d "$(cat </dev/tcp/de.pool.ntp.org/13)" # ntp pool project