I have a python program where i want to run a BSD system command with truss so that I can get a list of the syscalls made (open, stat, etc). For example, the command would be :
truss -S <application specific command>
I am using subprocess.Popen(command, .., ..) to call the command. I am passing the command as a list, and not a string, so i get proper encoding from Python. So the command list is like below :
command = ['truss', '-S', <application specific command>]
But this gives an error for truss :
truss -S "ls -lrt"
truss: execvp No such file or directory
truss: can not get etype: No such process
But if I run the same command without the quotes above, it goes through. Python adds quotes similar to above when I pass the command as a list to Popen, and I need that for the commands to work as expected.
What the best way to solve this ?