Hi, your solution does not work because files in /proc are virtual and have no size (their size will be reported as 0). FileStream>>contents sends #size to determine the length and that will return 0 for all files in /proc.
So the solution is to use something that does not use #size, like: (FileLocator root / 'proc' / 'uptime') readStream upToEnd Michal On 19.3.2015 07:07, Julien Delplanque wrote: > Hi everyone, > > I can't find out how to get the uptime of the OS from pharo. > > I tried: > > (FileLocator root / 'proc' / 'uptime') readStream contents. > > and > > (FileSystem disk root / 'proc' / 'uptime') readStream contents. > > but all what I get is an empty string ''. > > I don't know if there are messages in some specific classes to do this > (in OSProcess for example?). > > Thanks in advance. > > Julien >