Comment #5 on issue 393 by dunric...@gmail.com: XMonad.Prompt.Shell should use user-defined searchPredicate http://code.google.com/p/xmonad/issues/detail?id=393 Hi, me again. As a search predicate for shellPrompt is still not implemented in an upstream, here is the updated patch to xmonad-contrib 0.11 sources. In addition to the previous version it sorts list of the possible commands not only alphabetically but also favours commands starting with the same sequence as typed in prompt. Similar behaviour seen at dmenu launcher. For example my search predicate for XMonad.Prompt.Shell.shellPrompt matches anywhere inside of possible command names, not only at their begining and ignoring case at the same time: searchPredicate = L.isInfixOf . map toLower Now when trying to launch a firefox browser and type "fire" at xmonad's shellPrompt I'm getting the following completions in that order: firefox aafire cacafire Attachments: shell-compl_predicate.patch 5.1 KB