hellpanderrr

def sort_df(df, column_idx, key):
    '''Takes dataframe, column index and custom function for sorting, 
    returns dataframe sorted by this column using this function'''
    
    col = df.ix[:,column_idx]
    temp = pd.DataFrame([])
    temp[0] = col
    temp[1] = df.index
    temp = temp.values.tolist()
    df = df.ix[[i[1] for i in sorted(temp, key=key)]]

dayreiner

Sending Bash and ZSH Commands to Syslog

Also posted here: http://18pct.com/sending-bash-and-zsh-commands-to-syslog/

Your bash/zsh history is great if its complete, but it doesn't capture commands across all users, sudo's, root commands etc. In particular with test environments, someone may perform a "one-off" procedure and then months later it needs to be repeated. It would be nice to be able to look up what the user did at the time, and searching through multiple, possibly truncated history files is a pain.

Tools like typescript are great if you're actively documenting, but not something you would use all the time in practice and capture more than just a history of your commands. There are third-party tools like rootsh and Snoopy that can accomplish this, but third-party tools can be overkill if all you want is a quick reference in a re

subfuzion

Common Options

-#, --progress-bar Make curl display a simple progress bar instead of the more informational standard meter.

-b, --cookie <name=data> Supply cookie with request. If no =, then specifies the cookie file to use (see -c).

-c, --cookie-jar <file name> File to save response cookies to.

KodrAus

Profiling performance

Using perf:

$ perf record -g binary
$ perf script | stackcollapse-perf.pl | rust-unmangle | flamegraph.pl > flame.svg

NOTE: See @GabrielMajeri's comments below about the -g option.

jFransham

Achieving warp speed with Rust

Contents:

• Number one optimization tip: don't
• Never optimize blindly
• Don't bother optimizing one-time costs
• Improve your algorithms
• CPU architecture primer
• Keep as much as possible in cache
• Keep as much as possible in registers

kvark

Achieving warp speed with Rust

Contents:

• Number one optimization tip: don't
• Never optimize blindly
• Don't bother optimizing one-time costs
• Improve your algorithms
• CPU architecture primer
• Keep as much as possible in cache
• Keep as much as possible in registers

fbartho

Performance on Synology RAIDs

(especially while expanding)

Warning: The exact commands may not match for your particular linux OS / Synology(NAS) device. I had to customize the commands after exploring my particular system's setup.

If you're new to linux, or this is a new piece of hardware / a new synology device, jump down to the section called "Inspecting a setup"

Contents

huklee

# -*- coding: utf-8 -*-
import logging
import os
import datetime
import time


class SingletonType(type):
    _instances = {}

sainathadapa

import pandas as pd

def anti_join(x, y, on):
    """Return rows in x which are not present in y"""
    ans = pd.merge(left=x, right=y, how='left', indicator=True, on=on)
    ans = ans.loc[ans._merge == 'left_only', :].drop(columns='_merge')
    return ans


def anti_join_all_cols(x, y):

satmandu

#!/bin/bash 
# This goes in /usr/share/initramfs-tools/hooks/usbtrim
  
case $1 in
prereqs)
        echo "udev"
        exit 0
        ;;
esac