[Gambas-user] Exec statement not working though equivalent Terminal command works

[John Rose]

I have this code:
     Print "mplex", "-f 8", "-o " & "'" & sCombinedPath & "'", "'" & 
sVideoPath & "'", "'" & sAudioPath & "'"
     Exec ["mplex", "-f 8", "-o " & "'" & sCombinedPath & "'", "'" & 
sVideoPath & "'", "'" & sAudioPath & "'"] To sOutput
I'm using the single quotes since they are required when entering the 
equivalent commands in a Terminal e.g. mplex   -f 8    -o 
'/home/john/Videos/q.mpg'    '/home/john/Videos/The Story of Science_ 
Power, Proof____20140621_2000.m2v' '/home/john/Videos/The Story of 
Science_ Power, Proof____20140621_2000.mp2'.

The Print statement shows (at runtime):
mplex   -f 8    -o '/home/john/Videos/q.mpg' '/home/john/Videos/The 
Story of Science_ Power, Proof____20140621_2000.m2v' 
'/home/john/Videos/The Story of Science_ Power, Proof____20140621_2000.mp2'
i.e. the exact equivalent of the working command when entered in a 
Terminal.

However, the Exec statement does nothing at runtime, though the 
equivalent Terminal command works. There is no feedback on why by 
Gambas. I've also tried the statements without the single quote usage & 
it also did nothing. I'm fairly sure that this used to work on the 
previous version of Gambas: I'm using kendek's Gambas3 ppa 
(https://code.launchpad.net/~nemh/+archive/ubuntu/gambas3) which 
installed Gambas 3.5.3. The code without the single quote usage is:
     Print "mplex", "-f 8", "-o " & sCombinedPath, sVideoPath, sAudioPath
     Exec ["mplex", "-f 8", "-o " sCombinedPath, sVideoPath, sAudioPath] 
To sOutput

The above sOutput variable has the value "". What I am doing wrong or is 
it an issue in Gambas 3.5.3?

-- 
Regards,
John