On 1.2.2-12353 dev with the Mac 4.2.5 VM, evaluating: ExternalCommandShell open. produces: NonBooleanReceiver: proceed for truth from BufferedAsyncFileReadStream>>moveAvailableDataFrom:. It seems that primTestEndOfFileFlag: is returning nil Bug report... 2 June 2011 5:36:59 pm VM: Mac OS - intel - 1067 - Squeak4.1 of 17 April 2010 [latest update: #9957] Squeak VM 4.2.5b1 Image: Pharo1.2.2 [Latest update: #12353] SecurityManager state: Restricted: false FileAccess: true SocketAccess: true Working Dir /Users/sean/Squeak/Fresh Images/Pharo-1.2.2-12353 Trusted Dir /foobar/tooBar/forSqueak/bogus Untrusted Dir /Users/sean/Library/Preferences/Squeak/Internet/My Squeak UndefinedObject(Object)>>mustBeBooleanIn: Receiver: nil Arguments and temporary variables: context: BufferedAsyncFileReadStream>>moveAvailableDataFrom: proceedValue: nil Receiver's instance variables: nil UndefinedObject(Object)>>mustBeBoolean Receiver: nil Arguments and temporary variables: Receiver's instance variables: nil BufferedAsyncFileReadStream>>moveAvailableDataFrom: Receiver: BufferedAsyncFileReadStream: 'stdin' Arguments and temporary variables: sqFile: #[52 145 119 159 32 218 140 160 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0] bufferSize: 1000 buffer: ' -- View this message in context: http://forum.world.st/CommandShell-on-1-2-tp3569478p3569478.html Sent from the Pharo Smalltalk mailing list archive at Nabble.com.