You want to use waitForCommand: instead of command:, like

Transcript show: (PipeableOSProcess waitForCommand: 'whoami') output

command: doesn't wait for output and is useful only for commands that don't return anything. It's kind of useless for anything that returns values. I haven't tried this on Pharo 5, I've gotten it to work on Pharo 4.��



On Friday, March 4, 2016, Dimitris Chloupis <kilon.alios@gmail.com> wrote:
I once reported a bug for OSProcess on MacOS

https://pharo.fogbugz.com/f/cases/16944/OSProcess-stdout-is-not-returned-back-to-pharo

Still experience the same problem, is this suppose to be fixed with new OSProcess ?