I have a file with the extension '.pages´. I think that means iWork, but I'm not sure. Anyway, searching for "convert pages linux" produces a fair few false negatives!
Does anyone happen to know a way to convert it to something reasonable on Linux?
Pages documents are zip-compressed archives. Unzip it and you'll find an index.xml file from which you can extract the contents. There is also a VB utility on sf.net that might have more information on the XML structure.
.pages extension designates a file created with the Apple's word processing software called "Pages". AFAIK, Pages can be bought along with other iWork (suite) tools like "Numbers" (spreadsheets) or alone. It is able to produce PDF and RDF so if you can ask these format, just do it.
The .pages files are zipped archives. Extract it and you'll find several files, HTML, XML, images, ...
So you can't edit them but have a preview.
AFAIK there is no Pages2ODT converter.