Site moved to https://serge-m.github.io/

Archives for 2017

2017-01-09T07:10:00, Mon: Set up HP 1020 printer in Linux Mint 18
2017-01-08T14:10:00, Sun: Pelican Hints
2017-01-08T11:10:00, Sun: Shell commands
2017-01-08T07:10:00, Sun: Add service in ubuntu
2017-01-07T07:10:00, Sat: OpenVPN server in cloud using docker
2017-01-05T07:10:00, Thu: Docker in Scaleway's vc1s Ubuntu Xenial
2017-01-04T07:10:00, Wed: Check server fingerprint for scaleway
2017-01-04T07:10:00, Wed: Operations on images in python

Archives for 2016

2016-12-31T21:30:00, Sat: Raspberry Pi Links
2016-12-19T21:30:00, Mon: Run docker as pytest fixture
2016-12-07T00:30:00, Wed: Installing java 8 on linux mint 17.3
2016-11-27T22:47:00, Sun: Testing json responses in Flask REST apps with pytest
2016-11-27T20:47:00, Sun: Set up Travis CI for building personal page on Github Pages with Pelican
2016-10-08T01:10:00, Sat: Refactoring python code. Extracting variables and other.
2016-10-08T01:10:00, Sat: Useful python links
2016-09-29T14:10:00, Thu: How to fix google search suggestions in Firefox in Linux Mint
2016-08-14T14:16:00, Sun: podcasts
2016-08-14T14:10:00, Sun: git apply patch from another repository
2016-08-07T11:20:00, Sun: terminal setup in linux mint
2016-07-16T20:07:00, Sat: Fix boot record after moving linux mint partitions to another disk
2016-07-16T13:45:00, Sat: Mount yandex webdav on local dir
2016-06-26T23:01:00, Sun: how torch stores images
2016-06-26T22:11:00, Sun: Installing torch for miniconda
2016-06-25T22:43:00, Sat: compile dlib for miniconda
2016-06-19T12:37:00, Sun: Mount windows shares in linux
2016-06-03T23:08:00, Fri: deep learning
2016-06-02T23:24:00, Thu: autocomplete from history in terminal (in linux mint)
2016-06-01T20:47:00, Wed: Working with date and time in Java (russian)
2016-05-16T00:11:00, Mon: pypy with numpy
2016-05-01T12:33:00, Sun: About python
2016-04-10T20:50:00, Sun: Dropbox in linux mint
2016-04-05T00:45:00, Tue: C++ IDE for linux
2016-04-04T00:01:00, Mon: Debugging numpy (any C code of Python) using gdb
2016-03-22T22:12:00, Tue: Scipy in pypy
2016-03-22T21:51:00, Tue: Building Pypy
2016-01-08T08:30:00, Fri: TIL about PyPy

podcasts

http://dontspeak.podster.fm/
http://www.spotlightradio.net/

git apply patch from another repository

$ git --git-dir=../<some_other_repo>/.git format-patch -k -1 --stdout <commit SHA> | git am -3 -k

Source

http://stackoverflow.com/questions/6658313/generate-a-git-patch-for-a-specific-commit

terminal setup in linux mint

Updated version

sudo apt-get install tmux

Commands:

In tmux, hit the prefix ctrl+b (my modified prefix is ctrl+a) and then:

Sessions

:new<CR>  new session
s  list sessions
$  name session

Windows (tabs)

c  create window
w  list windows
n  next window
p  previous window
f  find window
,  name window
&  kill window

Panes (splits)

%  vertical split
"  horizontal split

o  swap panes
q  show pane numbers
x  kill pane
+  break pane into window (e.g. to select text by mouse to copy)
-  restore pane from window
⍽  space - toggle between layouts

Set up scrolling
put this command in your ~/.tmux.conf

setw -g mode-mouse on

# Lower escape timing from 500ms to 50ms for quicker response to scroll-buffer access.
set -s escape-time 50

Fix boot record after moving linux mint partitions to another disk

1. Copying partition is straightforward. Made using gparted.

2. Create bootable USB stick (Startup disk creator in Linux mint), boot from it.
Assume we have following partitions:

boot /sdb1 (don't really know how it works)
root /sdb2
home /sdb3

3. Do

sudo mount /dev/sda2 /mnt

## if you have boot partition:

# sudo mount /dev/sda1 /mnt/boot

sudo grub-install --root-directory=/mnt /dev/sda

Source of GRUB instructions

Mount yandex webdav on local dir

apt-get install davfs2

mkdir /mnt/yandex.disk

mount -t davfs https://webdav.yandex.ru /mnt/yandex.disk/

# check:

df -h /mnt/yandex.disk/

how torch stores images

require('image')

imgPath = "image.jpg"

img = torch.Tensor(1, 3, imgDim, imgDim)

img[1] = image.load(imgPath, 3, byte)

image is stored as float, conversion is (intensity/255.). stored top->bottom, line by line. format RGB.

display

require 'gnuplot'

gnuplot.figure(1)

gnuplot.imagesc(img[1])

Torch<->numpy dictionary
https://github.com/torch/torch7/wiki/Torch-for-Numpy-users