Snipplr - noah

(Other) Confluence table of contents

Thu, 03 Jul 2008 11:01:33 GMT

Creates a numbered table of contents showing the first 2 logical levels of the document.

(JavaScript) Conditionally assign a value to a variable

Mon, 23 Jun 2008 08:44:59 GMT

To assign a value to a variable only if some expression evaluates to true, I would usually do this: var foo; if (condition){ foo = "success"; } This is Douglas Crockford's idiom and it shortens the above from 4 lines to 1. I have understood for a while that (expr1 && expr2) evaluates to truth only if both conditions are true. What I did not get before Crockford pointed it out in his book, was that && doesn't simply return a boolean value -- it returns the result of the last expression that was evaluated. So if both expressions evaluate to false, the result of first expression will be returned. If only one expression evaluates true, the result of the false expression will be returned. And if both expressions evaluate to truth, the result of the second expression is returned.

(Bash) grep for either of two strings

Fri, 20 Jun 2008 15:29:33 GMT

Here's an example of using grep to filter for links that contain the string 'jpg' or 'gif'

(Ruby) Post to Twitter from the shell

Thu, 05 Jun 2008 09:23:47 GMT

Put this in a file called twit.rb, then call as follows: ruby twit.rb username "my tweet" Or you can include your password in the command like so ruby twit.rb username:password "my tweet" (note that this is hugely insecure as your password will wind up in your .history, not to mention being visible to shouldersurfers). Also, I just noticed as I was posting this code, that there's a bug where if your tweet is too long and gets truncated, my script will claim you failed to post entirely. I gotta go back and add logic to check the character count, but tbh I've never gone over 140 characters on the command line, tho I've posted daily with this script for the past several months. Ymmv.

(JavaScript) List all class names used in a DOM tree

Wed, 28 May 2008 17:31:41 GMT

Lists each CSS class name that is applied to an element within an HTML page. Some applications suggested by this pattern are: - List class names by frequency of use. - List class names by what kind of element they are applied to. - List class names that are only used once.

(JavaScript) List all IDs in the DOM tree

Wed, 28 May 2008 17:27:18 GMT

List all the IDs on the page.

(JavaScript) Find Verbose IDs in the DOM

Tue, 27 May 2008 17:08:12 GMT

Traverses the DOM tree and reports if any IDs are over 30 characters in length. Doesn't check for doubled IDs because that's caught when validationg the HTML.

(Bash) List commands in history, sorted by usage

Tue, 06 May 2008 15:24:05 GMT

Thanks Ben! Here's an example session: May12 10:39:18 book> ~/Documents/n_s/tools/command-history.sh 162 quite 110 svn 107 ruby 61 curl 39 rwget 34 grep 33 cd 21 lwp-request 19 fg 17 ls

(Other) Roll back a change in ClearCase

Wed, 02 Apr 2008 18:23:47 GMT

The first command will revert from version 10 to version 5, by "deleting" versions 6-10. The second command rolls back to the version immediately before the most recent version. If you don't check out beforehand, the merge will be saved to a temp file (ClearCase will tell you the name of the temp file when it's created).

(Bash) QuickBase add record from the command line

Mon, 31 Mar 2008 22:51:20 GMT

The field IDs (_fid_19) are specific to your QB instance. See the API ref for how to figure out which field is which. To get back the URL of the normal HTML confirmation page, add the argument -d "disprec=true"

(Bash) Get the length of a string on the command line with Ruby

Thu, 27 Mar 2008 23:08:41 GMT

The following command prints 21.

(Bash) LDAP/NTLM authentication on the command line with curl

Thu, 27 Mar 2008 11:33:30 GMT

Note that curl will not follow redirects. Will prompt interactively for password if the -u option is omitted.

(Ruby) Regex replace

Tue, 25 Mar 2008 14:09:21 GMT

Equivalent of the Perl code: url =~ s/foo/bar/

(Ruby) Parse an XML document with REXML and print some of the text nodes

Mon, 24 Mar 2008 16:50:22 GMT

Parses the XML file MY_FILE.xml, and prints the text from each record node's upload_list node, unless the upload_list node is empty.

(Perl) lwp-request

Mon, 25 Feb 2008 12:28:41 GMT

(Bash) wget -pkr

Sat, 16 Feb 2008 21:42:46 GMT

(Perl) Generate XHTML on the command line with XML::API::XHTML

Sun, 10 Feb 2008 02:21:23 GMT

Build a simple XHTML document, format it with Tidy and print the result to "temp.html."

(Bash) Validate XHTML with Tidy and/or OpenJade, just like the FF extension

Sun, 10 Feb 2008 02:14:45 GMT

Neither command will give any feedback unless invalid markup is found.

(Other) external hyperlink

Thu, 07 Feb 2008 18:53:31 GMT

(Other) Confluence emoticons

Wed, 06 Feb 2008 22:18:03 GMT

List of emoticons for Confluence wiki. Each of these emoticons will render a graphical symbol.