Don Cruickshank questions

Don Cruickshank answers

• c-code reference to a struct
• In Vim, how to remove all lines that are duplicate somewhere
• Strange irb behaviour, listing content current directory
• Ruby: nested if statements
• Log use of the default route in rails
• How to terminate variable expansion to create a string in Powershell
• Adding extra run-time attribs to an activerecord object [duplicate]
• Use GetElementsByClassName in a script
• Powershell: Move all files from folders and subfolders into single folder
• Pipe output to environment variable export command