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$ alias prettyjson='python -m json.tool'
$ prettyjson my-json-horrible-file.json

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*/10 * * * * /bin/execute/this/script.sh >> /var/log/script_output.log 2>&1

# More information on: http://kvz.io/blog/2007/07/29/schedule-tasks-on-linux-using-crontab/
# Crontab generator http://crontab-generator.org/

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# general view
dpkg --get-selections | grep -v deinstall

# detailed view
dpkg -l

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# If using Homebrew
brew services start mongodb #start service
brew services list #list services to see if it's running
brew services stop mongodb #stop service

# If starting manually
mongod --fork --logpath /usr/local/var/log/mongodb/mongo.log # start service [logpath located in mongod.conf]
mongod --shutdown # stop service on linux
mongo admin #stop service osx/other
  db.shutdownServer()

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lsof -n -i4TCP:[PORT] | grep LISTEN
# lsof -n -i4TCP:27017 | grep LISTEN

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$ mongodump -d some_database -c some_collection
$ mongorestore -d some_other_db -c some_or_other_collection dump/some_collection.bson

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time wget http://www.aip.im -q --output-document=/dev/null

# See more at: http://www.aip.im/2012/05/how-to-measure-web-sites-response-time-with-wget/#sthash.EI6QgjGQ.dpuf