darktable

application: you-app-name-here
version: 1
runtime: python
api_version: 1

default_expiration: "30d"

handlers:
- url: /(.*\.(appcache|manifest))
  mime_type: text/cache-manifest

un33k

FILE SPACING:

 # double space a file
 sed G

 # double space a file which already has blank lines in it. Output file
 # should contain no more than one blank line between lines of text.
 sed '/^$/d;G'

rgreenjr

-- show running queries (pre 9.2)
SELECT procpid, age(clock_timestamp(), query_start), usename, current_query 
FROM pg_stat_activity 
WHERE current_query != '<IDLE>' AND current_query NOT ILIKE '%pg_stat_activity%' 
ORDER BY query_start desc;

-- show running queries (9.2)
SELECT pid, age(clock_timestamp(), query_start), usename, query 
FROM pg_stat_activity 
WHERE query != '<IDLE>' AND query NOT ILIKE '%pg_stat_activity%' 

d11wtq

docker run -rm -t -i -v $(dirname $SSH_AUTH_SOCK) -e SSH_AUTH_SOCK=$SSH_AUTH_SOCK ubuntu /bin/bash

yiboyang

# to simplify life, install xclip and append the following lines to your .bashrc
alias "c=xclip" # copy to X clipboard (register *)
alias "cs=xclip -selection clipboard" # copy to system wide clipboard (register +)
alias "v=xclip -o" # output copied content (paste)
alias "vs=xclip -o -selection clipboard" # paste from system wide clipboard (equivalent to `v -selection clipboard`)

# examples:
# copy to X:
# go to the same directory in terminal 2 as in terminal 1
# Terminal 1:

qnub

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE fontconfig SYSTEM "fonts.dtd">
<fontconfig>
  <match target="pattern">
    <test qual="any" name="family"><string>DejaVu Sans</string></test>
    <edit name="family" mode="assign" binding="same"><string>Noto Sans</string></edit>
  </match>
  <match target="pattern">
    <test qual="any" name="family"><string>FreeSans</string></test>
    <edit name="family" mode="assign" binding="same"><string>Noto Sans</string></edit>

njam

# Installation on Dell XPS
# Please also consult official documentation:
# https://wiki.archlinux.org/index.php/Installation_Guide
# https://wiki.archlinux.org/index.php/Dell_XPS_13_(9360)
# https://wiki.archlinux.org/index.php/Dell_XPS_15_(9550)

# Enter BIOS with F2 and configure:
# - "System Configuration" > "SATA Operation": "AHCI"
# - "Secure Boot" > "Secure Boot Enable": "Disabled"

Brainiarc7

Tuning Intel Skylake and beyond for optimal performance and feature level support on Linux:

Note that on Skylake, Kabylake (and the now cancelled "Broxton") SKUs, functionality such as power saving, GPU scheduling and HDMI audio have been moved onto binary-only firmware, and as such, the GuC and the HuC blobs must be loaded at run-time to access this functionality.

Enabling GuC and HuC on Skylake and above requires a few extra parameters be passed to the kernel before boot.

Instructions provided for both Fedora and Ubuntu (including Debian):

Note that the firmware for these GPUs is often packaged by your distributor, and as such, you can confirm the firmware blob's availability by running:

2E0PGS

If your running a x64 bit Ubuntu or other Linux and find USB transfers hang at the end apply this fix:

echo $((16*1024*1024)) > /proc/sys/vm/dirty_background_bytes
echo $((48*1024*1024)) > /proc/sys/vm/dirty_bytes

I suggest you edit your /etc/rc.local file to make this change persistant across reboots.

sudo nano /etc/rc.local

OndraZizka

#!/bin/bash

####  Restart Bluetooth
if [ "$1" == "resetBT" ] ; then
  sudo rfkill block bluetooth && sleep 0.1 && sudo rfkill unblock bluetooth;
  exit;
fi;

#### Toggle listen/speak
if [ "$1" == "" -o "$1" == "toggle" ] ; then