1. Clear PageCache only. # sync; echo 1 > /proc/sys/vm/drop_caches 2. Clear dentries and inodes. # sync; echo 2 > /proc/sys/vm/drop_caches 3. Clear PageCache, dentries and inodes. # sync; echo 3 > /proc/sys/vm/drop_caches nJoy 😉
SELECT * FROM pg_replication_slots; nJoy 😉
Be VERY CAREFUL with this. sudo dpkg -l ‘linux-*’ | sed ‘/^ii/!d;/'”$(uname -r | sed “s/\(.*\)-\([^0-9]\+\)/\1/”)”‘/d;s/^[^ ]* [^ ]* \([^ ]*\).*/\1/;/[0-9]/!d’ | xargs sudo apt-get -y purge 😉 nJoy
curl -sL https://repos.influxdata.com/influxdb.key | sudo apt-key add – source /etc/lsb-release echo “deb https://repos.influxdata.com/${DISTRIB_ID,,} ${DISTRIB_CODENAME} stable” | sudo tee /etc/apt/sources.list.d/influxdb.list sudo apt-get update && sudo apt-get install influxdb sudo service influxdb start nJoy 😉
sudo apt-get remove influxdb apt-get purge influxdb nJoy 😉
Referring to the github README.md https://github.com/pm2-hive/pm2-logrotate pm2 install pm2-logrotate@2.6.0 pm2 set pm2-logrotate:compress true pm2 set pm2-logrotate:max_size 10M pm2 set pm2-logrotate:retain 7 pm2 conf { “pm2-logrotate”: { “max_size”: “10M”, “retain”: “7”, “compress”: “true”, “dateFormat”: “YYYY-MM-DD_HH-mm-ss”, “workerInterval”: “30”, “rotateInterval”: “0 0 * * *”, “rotateModule”: true }, “module-db”: { “pm2-logrotate”: { “uid”: null, “gid”: null } }…
ulimit -c unlimited nJoy 😉
This is a simple script to get all cronjbs for all users on a system for someone in $(cut -f1 -d: /etc/passwd); do echo $someone; crontab -u $someone -l ; done nJoy 😉
Inside you incrontabs, you must leave *only* 1 space between the <path> <mask> <cmd>. If you leave 2 or more spaces, then the 2nd (and more) spaces will be considered part of the <mask> or <cmd> and it will fail… I was leaving 2 spaces between <mask> and <cmd>, and incron did not work and in…
This is as bare a node App as you can make but it comes in handy when you want a . dummy server just to return 200s and or a JSON object at super fast speeds on small systems: var express = require(‘express’); var app = express(); app.get(‘*’, function(req, res) { res.sendStatus(200); }); app.listen(‘3000’);…
