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Pipe to a file using sudo

The tee -a command will append changes to a file (just like to >>). The -a flag stands for "append".

echo "some text" | sudo tee -a write-protected.txt

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find . -type f -exec file --mime {} \; | grep -v us-asci

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<div class="share-bar">
  <%= @post.tweet_button -%>
  <%= @post.share_button -%>
  <%# No point showing this on mobiles since they can't easily copy/paste
      the URL into an RSS app. %>
  <%= @post.rss_button unless mobile_device?  -%>
</div>

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PostgreSQL Backup and Restore

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// Originally found at: http://rangevoting.org/Qnorm.html

/** * @(#)qnorm.js * * Copyright (c) 2000 by Sundar Dorai-Raj
  * * @author Sundar Dorai-Raj
  * * Email: [email protected]
  * * This program is free software; you can redistribute it and/or
  * * modify it under the terms of the GNU General Public License 
  * * as published by the Free Software Foundation; either version 2 
  * * of the License, or (at your option) any later version, 
  * * provided that any use properly credits the author. 

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# Discussion: http://stackoverflow.com/q/1005153/574190
# Railscast: http://railscasts.com/episodes/199-mobile-devices
# More Infor: http://detectmobilebrowsers.com/

# Hacky because of Regex but that seems to be the way that this is done around
# the net. THere are some gems out there which will provide similar
# functionality.
#
# Check out:
#

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# Remove trailing whitespace from files in the src directory.

# This is useful because (for example) trailing whitespace hinders Vim's 
# paragraph movement.

# INFO: http://stackoverflow.com/a/4438318/574190
# INFO: http://stackoverflow.com/q/1583219/574190

# The directory under which we want to search for files.
ROOT_DIRECTORY="$1"

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sed -i '' 's/TextToChange/ChangeToThis/g' spec/features/*.rb
 
# -i '' forces the files to be edited in place

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# http://stackoverflow.com/a/1583282/574190
find app/views -type f -print0 -name "*.erb" | xargs -0 sed -i '' 's/Et\.trac/mixpanel\.trac/g'

# Not sure why the following isn't equivilent.
sed =i '' 's/Et\.trac/mixpanel\.trac/g' app/views/**/*.html.erb

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Starting/Stopping server

It doesn't start automatically at login

mysql.server start
mysql.server stop

Login as root user

mysql -uroot -p