ChrisWills

# GNU Screen - main configuration file 
# All other .screenrc files will source this file to inherit settings.
# Author: Christian Wills - cwills.sys@gmail.com

# Allow bold colors - necessary for some reason
attrcolor b ".I"

# Tell screen how to set colors. AB = background, AF=foreground
termcapinfo xterm 'Co#256:AB=\E[48;5;%dm:AF=\E[38;5;%dm'

joaopizani

# the following two lines give a two-line status, with the current window highlighted
hardstatus alwayslastline
hardstatus string '%{= kG}[%{G}%H%? %1`%?%{g}][%= %{= kw}%-w%{+b yk} %n*%t%?(%u)%? %{-}%+w %=%{g}][%{B}%m/%d %{W}%C%A%{g}]'

# huge scrollback buffer
defscrollback 5000

# no welcome message
startup_message off

shenoudab

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'

JasonMorgan

## Hey folks, this is just a quick walkthrough on modifying the trusted hosts property in WSMAN using Powershell

# By default PowerShell loads a PSDrive for the WinRM service
# We modify the trusted hosts property using the Set-Item cmdlet

Set-Item WSMan:\localhost\Client\TrustedHosts -value 192.168.1.13
#This sets the value to 192.168.1.13, it also overwrites any existing values

# If you want to set a subnet you can use the PowerShell wildcard character
Set-Item WSMan:\localhost\Client\TrustedHosts -value 192.168.1.*

nk9

#!/usr/bin/python
# -*- coding: utf-8 -*-

# Python script to find the largest files in a git repository.
# The general method is based on the script in this blog post:
# http://stubbisms.wordpress.com/2009/07/10/git-script-to-show-largest-pack-objects-and-trim-your-waist-line/
#
# The above script worked for me, but was very slow on my 11GB repository. This version has a bunch
# of changes to speed things up to a more reasonable time. It takes less than a minute on repos with 250K objects.
#

sivel

Better SSH Authorized Keys Management

A seemingly common problem that people encounter is how to handle all of your users authorized_keys file.

People struggle over management, ensuring that users only have specific keys in the authorized_keys file or even a method for expiring keys. A centralized key management system could help provide all of this functionality with a little scripting.

One piece of functionality overlooked in OpenSSH is the AuthorizedKeysCommand configuration keyword. This configuration allows you to specify a command that will run during login to retrieve a users public key file from a remote source and perform validation just as if the authorized_keys file was local.

Here is an example directory structure for a set of users with SSH public keys that can be shared out via a web server:

awaxa

channel operator quick reference

search this document to use it quickly (ctl/cmd + f)

quicker reference

• to ban someone: /msg chanserv akick #reddit-diabetes add *!*@12.34.56.78 feeling free | worleygurl asked for it
• to ban a nickserv account, op yourself and /mode #reddit-diabetes +b $a:worleygurl

practices

nl5887

function transfer
    if test (count $argv) -eq 0
        echo "No arguments specified. Usage:\necho transfer /tmp/test.md\ncat /tmp/test.md | transfer test.md"
        return 1
    end

    ## get temporarily filename, output is written to this file show progress can be showed
    set tmpfile ( mktemp -t transferXXX )

    ## upload stdin or file

eldondev

wget -nc http://ftp.debian.org/debian/dists/jessie/main/installer-amd64/current/images/netboot/debian-installer/amd64/linux
wget -nc http://ftp.debian.org/debian/dists/jessie/main/installer-amd64/current/images/netboot/debian-installer/amd64/initrd.gz
cp -nv ~/.ssh/id_rsa.pub .
qemu-system-x86_64 -machine accel=kvm -kernel linux -initrd initrd.gz -m 1G -smp 2 -append "blacklist=vga16fb fb=false video=false vga=normal auto=true url=http://10.0.2.10:8080/debian-preseed.txt hostname=otto domain=" -net user,guestfwd=:10.0.2.10:8080-cmd:"/bin/busybox httpd -i" -hda /dev/shm/deb.img -net nic -display none

bastman

Docker - How to cleanup (unused) resources

Once in a while, you may need to cleanup resources (containers, volumes, images, networks) ...

delete volumes

// see: https://github.com/chadoe/docker-cleanup-volumes

$ docker volume rm $(docker volume ls -qf dangling=true)

$ docker volume ls -qf dangling=true | xargs -r docker volume rm