MohamedAlaa

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

rikrd

%pylab inline
import numpy as np
import pylab as plt
import GPy
import re

def get_equation(kern):
    match = re.search(r'(math::)(\r\n|\r|\n)*(?P<equation>.*)(\r\n|\r|\n)*', kern.__doc__)
    return '' if match is None else match.group('equation').strip()

rossant

Problems with HDF5

• Corruption: not sure why, sometimes files get corrupted during a session and users lose all their work, either automatic or manual, which may correspond to days of computer time or, worse, human time. Corruption is more likely to happen because libhdf5 is a very complex piece of software, and a crash or sudden kill is likely to corrupt the file completely. This would be much rarer with flat binary or text files, at least you'd be able to recover part of the data.

• Not possible to delete arrays, but that might be fixed in the future (not today though...).

• Various bugs with strings on Windows and h5py: users may need to downgrade h5py in order to use their files, otherwise a nasty segfault occurs. Not a good sign...

• There is a single implementation of HDF5 in the world, so we depend critically on it. It is almost impossible to contribute on such a complex piece of code since it is really low-level (in C). There are bugs and performance issues with it and there is nothing we can

giannisp

After automatically updating Postgres to 10.0 via Homebrew, the pg_ctl start command didn't work.
The error was "The data directory was initialized by PostgreSQL version 9.6, which is not compatible with this version 10.0."

Database files have to be updated before starting the server, here are the steps that had to be followed:

# need to have both 9.6.x and latest 10.0 installed, and keep 10.0 as default
brew unlink postgresql
brew install postgresql@9.6
brew unlink postgresql@9.6
brew link postgresql

GusAntoniassi

kubectl with ZSH (oh-my-zsh)

How to configure

Use the following commands to add the kubectl autocomplete to zsh:

mkdir -p ~/.oh-my-zsh/custom/plugins/kubectl-autocomplete/
kubectl completion zsh > ~/.oh-my-zsh/custom/plugins/kubectl-autocomplete/kubectl-autocomplete.plugin.zsh