Math and Programming

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Showing posts from December, 2010

sed for several different substitutions in one file

sed -e 's/a/A/' -e 's/b/B/' <old >new

git merge --squash

Start out on branch master, then work on an experimental branch $ git checkout -b experimental Do a series of commits etc. If you decide that the experimental features should now be part of master, do the following: $ git checkout master $ git merge --squash experimental $ git commit -a The commit message automatically has a list of all commits in experimental.

Syntax Highlighting on Blogger

If you change your template, don't forget to include the script tags for syntax highlighting! Follow these simple instructions from Carter Cole

Uploading a file with JQuery

You can easily submit data in an html form via jQuery's $.post. But you need to do a little more to upload a file. I suggest the jQuery Form Plugin . Here is the HTML form: <html> <head> <title>Title</title> </head> <body> <form action="/test.cgi" enctype="multipart/form-data" method="post"> <input name="myFile" type="file" /> <div id="results"> </div> </form> </body> </html> This is the Javascript file myFrom.js: $(document).ready(function() { $('form').ajaxForm( { beforeSubmit: function() { $('#results').html('Submitting...'); }, success: function(data) { var $out = $('#results'); $out.html('Your results:'); $out.append('<div><pre>'+ data +'</pre></div>'); ...

Happy Holidays!

Ruby Version Manager

http://www.rubyinside.com/rvm-ruby-version-manager-2347.html Since I keep forgetting, it's rvm!