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15%
Data Analysis with R and Python
17.02.2015
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2015
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Issue 25: Safe...
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return float(val)
08
except: 09 return None 10 11 with open(sys.argv[1]) as csvfile:
12
collec = MongoClient()["galaxy"]["comets"] 13 for row in csv.reader(csvfile, delimiter="\t"): 14 try
14%
Managing Linux systems with Spacewalk
14.11.2013
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2013
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Issue 17: Cloud...
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RHNSession; 06 07 my ($client, $session) = RHNSession::Session;
08
09 my $channels = $client->call('channel.listSoftwareChannels', $session); 10 11 foreach my $channel (@$channels) {
12
print $channel
14%
Data acquisition with shell tools
30.11.2025
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2010
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Issue 2: Backup...
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clear 03 while true 04 do 05 echo "New record" 06 maxrecord=`ls -1 *.dat | sort | tail -1 | cut -d. -f 1` 07 newrecord=$(echo $maxrecord + 1 | bc )
08
width=`echo $newrecord | wc -c` 09 10 ... 11
12
14%
Tracing applications with OProfile and SystemTap
30.11.2025
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2010
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Issue 1: System...
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Finding I/O-Intensive Apps 01 #!/usr/bin/stap 02 03 global totals; 04 probe vfs.read 05 06 { 07 totals[execname(), pid()]++
08
} 09 10 probe end 11 {
12
printf("** Summary ** \n") 13 foreach
14%
Jenkins Configuration as Code
07.06.2019
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2019
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Issue 51: Self-...
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-jdk-alpine 02 03 RUN apk add --no-cache git openssh-client curl bash # for Jenkins AWT 04 ttf-dejavu 05 06 ARG JENKINS_USER=jenkins 07 ARG UID=1000
08
ARG HTTP_PORT=8080 09 ARG JENKINS
14%
Infrastructure as Code with Terraform
18.02.2018
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2018
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Issue 43: Real...
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variable "site_author" { 07 type = "string"
08
default = "Jon Doe" 09 } 10 variable "site_container" {} 11 variable "do_token" {
12
type = "string" 13 } 14 variable "key_path" {} 15 variable "ssh
14%
Warewulf 4
13.12.2022
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2022/11/05
08:56:22
info unpack layer: sha256:3b38e1016650813dc5e3bb98cabcc9bf6167399caee7806bc1ca9f3df9825f2e Updating the container's /etc/resolv.conf uid./gid not synced, run wwctl
14%
Monitoring your cluster with a home-grown OCF agent
30.11.2025
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2012
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Issue 07: Xen v...
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an Asterisk PBX as an HA resource 07 #
08
# Authors: Martin Gerhard Loschwitz 09 # Florian Haas 10 # 11 # Support: linux-ha@lists.linux-ha.org
12
# License: GNU General Public
14%
Build a honeypot with real-world alerts
01.08.2019
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2019
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Issue 52: Stop...
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NEW -m tcp --dport
22
-j ACCEPT 10 -A INPUT -p udp --dport 5353 -j DROP 11 -A INPUT -s
-p tcp -m state --state NEW -m tcp --dport 443 -j ACCEPT
12
-A INPUT -m limit --limit 30/min -j
14%
Get Started with Parallel CPython
07.11.2011
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print str(id) + ' Total waste of CPU cycles!'
08
09 if '__main__' == __name__: 10 11 for i in xrange(20):
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Process(target = waste, args = (i,)).start() The counting.py program delays
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