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var wrapperId = 'sidebarWrapperIdOnPage';

var
  $w = $(window),
  $wrap = $('#'+wrapperId),
  followerInitialOffset = $wrap.offset().top,
  marginTop = 0,
  $wrap, windowTop, windowBottom, followerHeight,
  followerTop, followerBottom, followerBottomPosition
;

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var
  is_chrome = navigator.userAgent.indexOf('Chrome') > -1,
  is_safari = navigator.userAgent.indexOf("Safari") > -1 && !is_chrome,
  is_firefox = navigator.userAgent.indexOf('Firefox') > -1,
  is_explorer = (navigator.userAgent.indexOf('MSIE') !== -1 || navigator.appVersion.indexOf('Trident/') > 0),
  is_opera = navigator.userAgent.indexOf("Presto") > -1
;

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var selectionIsRTL = function(sel) {
  sel = sel || document.getSelection();
  position = sel.anchorNode.compareDocumentPosition(sel.focusNode);
  return (
    // nodes are same if position === 0
    // selection direction is RTL if anchorOffset > focusOffset
    !position && sel.anchorOffset > sel.focusOffset ||
    // focus preceeds anchor
    position === Node.DOCUMENT_POSITION_PRECEDING
  )

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/* 
    Synchsafe integers are used in ID3 tags
    http://id3.org/id3v2.4.0-structure (6.2)
    https://en.wikipedia.org/wiki/Synchsafe

    The why of synchsafe:
    http://stackoverflow.com/a/5652842

    Example:
    255 (%11111111) encoded as a 16 bit synchsafe integer is 383 (%00000001 01111111).

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git log -4 | grep 'commit'  | awk '{print $2}' | tail -r > commits.txt
git co destination_branch
for commit in $(cat commits.txt); do git cherry-pick $commit; done
git log -4

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# convert all png's in a directory to jpg
mogrify -format jpg *.png

raym

# you're in a dark room, it's 2 am, and you're
# updating ubuntu via Software Updater, when you get the error:
# Not enough free disk space on disk '/boot'
# what do you do? try this:

# edit: it seems like this one command accomplishes the same thing as the rest, and removes even more unneeded packages
audo apt-get autoremove

# if that doesn't work for some reason, try the original gist revision's steps:
uname -r

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#!/bin/bash

ext=.png

for file in *$ext; do
  baseName=${file%$ext}
  baseNoDashes=$(echo $baseName | tr -d '_- .')
  baseLower=$(echo $baseNoDashes | tr '[:upper:]' '[:lower:]')
  fileNew=$baseLower$ext
  echo Renaming $file to $fileNew

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#!/bin/bash

# if when looking in /var/log/upstart/yourapp.log, you find the error:

# Error: /home/yourapp/bundle/programs/server/npm/npm-bcrypt/node_modules/bcrypt/build/Release/bcrypt_lib.node: invalid ELF header
#    at Error (native)
#    at Module.load (module.js:355:32)
#    at Function.Module._load (module.js:310:12)
#    at Module.require (module.js:365:17)
#    at require (module.js:384:17)

raym

git push origin :oldname
git branch -m oldname newname
git push origin newname