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Charles Feduke cfeduke

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cfeduke / DumbSpamFilter.js
Last active October 3, 2022 16:30
Gmail spam is entirely out of control in 2022
// hah silly human # is for Python comments!
// created in Google Apps Script and scheduled to run every minute
function processInboxEmailSubjects() {
var threads = GmailApp.search("is:unread newer_than:1d -label:spam")
Logger.log("Examining " + threads.length + " threads for spam by checking the subject line")
for (var i = 0; i < threads.length; i++) {
var subject = threads[i].getFirstMessageSubject()
const regex = /confirmation#/i
let isSpam = regex.test(subject)
// TODO other tests as necessary for your particular spam hell
@cfeduke
cfeduke / neighbors.clj
Created January 28, 2014 16:36
; Joy of Clojure pp85-86
(defn neighbors
([size yx] (neighbors [[-1 0] [1 0] [0 -1] [0 1]] size yx))
([deltas size yx]
(filter (fn [new-yx]
(every? #(< -1 % size) new-yx))
(map #(map + yx %) deltas))))
; usage
(def matrix
@cfeduke
cfeduke / add-hostname-to-etc-hosts.sh
Created January 7, 2014 15:45
Adds hostname to /etc/hosts (place in /etc/rc.local).
#!/bin/bash
HOSTNAME=`hostname`
ETC_HOSTS=/etc/hosts
if ! grep $HOSTNAME $ETC_HOSTS > /dev/null ; then
if grep "127.0.0.1" $ETC_HOSTS > /dev/null ; then
sed -i "s/127\.0\.0\.1.*$/& $HOSTNAME/" $ETC_HOSTS
else
echo "127.0.0.1 localhost $HOSTNAME" >> $ETC_HOSTS
fi
@cfeduke
cfeduke / prepare-logs-for-ami.sh
Created January 7, 2014 15:43
Clears the log file drive in preparation to create an AMI. Place in /root.
#!/bin/sh
LOG_DIR=/var/log/trafficland
find $LOG_DIR -type d -print0 | while IFS= read -r -d '' dir
do
rm $dir/*.log > /dev/null 2>&1
done
@cfeduke
cfeduke / Build.scala
Created November 22, 2013 14:29
org.scala-stm
/* get around scala-stm 2.10.0 vs. 2.10 in play vs. reactive mongo */
someDependency exclude("org.scala-stm", "scala-stm_2.10.0")
@cfeduke
cfeduke / sed-replace-in-pom
Created June 12, 2013 12:15
sed replace maven variable in pom
find . -name pom.xml -print0 | xargs -0 sed -i "" "s/{artifactId}/{project.artifactId}/g"
@cfeduke
cfeduke / bash-script-home-dir
Created June 11, 2013 13:44
bash script home directory
# the directory where the shell script physically resides
SCRIPT_HOME_DIR="$( cd "$( dirname "$0" )" && pwd )"
@cfeduke
cfeduke / bash-default-variable-value
Created June 11, 2013 13:41
bash default argument
# var is set to CLI parameter 1 or "value" if not passed
VAR=${1-value}
@cfeduke
cfeduke / ssh_remote_host_completion.zsh
Created January 4, 2012 14:43
ssh remote host name completion
# place in ~/.oh-my-zsh/custom
[ -f ~/.ssh/config ] && : ${(A)ssh_config_hosts:=${${${${(@M)${(f)"$(<~/.ssh/config)"}:#Host *}#Host }:#*\**}:#*\?*}}
[ -f ~/.ssh/known_hosts ] && : ${(A)ssh_known_hosts:=${${${(f)"$(<$HOME/.ssh/known_hosts)"}%%\ *}%%,*}}
zstyle ':completion:*:hosts' hosts $ssh_config_hosts $ssh_known_hosts
@cfeduke
cfeduke / enable_trim.sh
Created September 30, 2011 15:14
Enable TRIM on OS X
#!/bin/bash
# derived from http://www.mactrast.com/2011/07/how-to-enable-trim-support-for-all-ssds-in-os-x-lion/
# requires that you run with sudo
cp /System/Library/Extensions/IOAHCIFamily.kext/Contents/PlugIns/IOAHCIBlockStorage.kext/Contents/MacOS/IOAHCIBlockStorage /IOAHCIBlockStorage.original
perl -pi -e 's|(\x52\x6F\x74\x61\x74\x69\x6F\x6E\x61\x6C\x00).{9}(\x00\x51)|$1\x00\x00\x00\x00\x00\x00\x00\x00\x00$2|sg' \
/System/Library/Extensions/IOAHCIFamily.kext/Contents/PlugIns/IOAHCIBlockStorage.kext/Contents/MacOS/IOAHCIBlockStorage
sudo kextcache -system-prelinked-kernel
sudo kextcache -system-caches