BH1SCW

#!/bin/bash

merge_commit() {
  git show --no-patch --format='%P' "$@" | head -1 | grep -q ' '
}

commit_meta() {
  git show --no-patch --format="* %cd %aN <%ae> - %H" --date=local "$@" | \
    head -1 | \
    sed -E 's/^(\* [a-z0-9 ]{9,10}) \d{2}:\d{2}:\d{2}/\1/i'

BH1SCW

#!/bin/bash

##############################################################################
# Wrapper for non-interactive signing of RPMs.
#
# _NOTE: This uses environment variables for sensitive information (the GPG
# passphrase), so should not be used on an untrusted or shared host._
#
# Prep
# ----

BH1SCW

# This script create a Centos Minimal Unattended ISO

# This method is based on excellent article http://pyxlmap.net/technology/software/linux/custom-centos-iso
# 
# This script has be tested with CentOS 6.5
# TODO:
# * test package update to reduce the update task on the target system. The following command downloads all updates :
#   (cd $CENTOS_CUSTOM_PATH/Packages ; yumdownloader $(for i in *; { echo ${i%%-[0-9]*}; } ) )

# Some global settings :

BH1SCW

$ python i18njson-translate.py --help                                                      
Usage: i18njson-translate.py [OPTIONS] INPUTFILE OUTPUT

  Process and translate .po or JSON files and generate translated .po file
  in result. Can work with exist .po files and if in initial file msgid
  dissapear then mark translaed string as obsolete. Try to play nice with
  version control systems and follow initial file order format, you will get
  predicteable diffs.

Options:

BH1SCW

# Linux kernel verbose boot and logging to serial console
#
# Check Documentation/kernel-parameters.txt [1] to check all aplicable options for your kernel version
#
# VERSION="v"$(uname -r | sed -e 's/\(\.0\)\?-.*$//')
# [1] https://git.kernel.org/cgit/linux/kernel/git/stable/linux-stable.git/plain/Documentation/kernel-parameters.txt?id=refs/tags/$VERSION

linux /vmlinuz root=/dev/sda1 ro  consoleblank=0 earlyprintk=ttyS0 console=ttyS0  panic=1 oops=panic panic_on_warn  verbose INIT_VERBOSE=yes init=/sbin/init -v
initrd /initrd.gz
boot

BH1SCW

QEMU arm64 cloud server emulation

This is basically a rehash of an original post on CNXSoft - all credit (particularly for the Virtio device arguments used below) belongs to the author of that piece.

Download the latest uefi1.img image. E.g. ubuntu-16.04-server-cloudimg-arm64-uefi1.img from https://cloud-images.ubuntu.com/releases/16.04/release/

Download the UEFI firmware image QEMU_EFI.fd from https://releases.linaro.org/components/kernel/uefi-linaro/latest/release/qemu64/

Determine your current username and get your current ssh public key:

BH1SCW

How to mount a qcow2 disk image

This is a quick guide to mounting a qcow2 disk images on your host server. This is useful to reset passwords, edit files, or recover something without the virtual machine running.

Step 1 - Enable NBD on the Host

modprobe nbd max_part=8

BH1SCW

Start off with some Rust source code

hw.rs :

#[link(name = "extern")]
extern {
	fn hello();
}

BH1SCW

I started getting the error below after upgrading to gpg (GnuPG) 2.1.21 .

gpg: signing failed: Timeout
gpg: signing failed: Timeout

This was confusing at first, but the timeout was caused by gpg showing a password prompt that takes the full screen of the terminal, and after a period of time, it returned to the command line showing the timeout error.
I didn't notice the password prompt at first because I was working on multiple terminals and only saw the timeout error at the end.

Another error that I encountered earlier was:

BH1SCW

#!/bin/sh

RELAY="$1"
PORT="$2"

echo -n 'nat-hole-punch' | socat STDIN "UDP-SENDTO:$RELAY:$PORT,sourceport=$PORT"
mosh-server new -p "$PORT" | sed -n 's/MOSH CONNECT [0-9]\+ \(.*\)$/\1/g p'