This isn't too far away from "Powershell on the JVM," which is not a bad thing. ls.rec! cwd |? (_.ext == "class") |? (_.size > 1024) | (_.last) | println Co

This isn't too far away from "Powershell on the JVM," which is not a bad thing. ls.rec! cwd |? (_.ext == "class") |? (_.size > 1024) | (_.last) | println Compare to (I think this is roughly equivalent Powershell) ls -rec |? {$_.Extension -eq ".dll"} |? {$_.Length -gt 1024}