-- -*- M2-comint -*- hash: 13122019433246518778

i1 : f = openInOut "!cat"

o1 = !cat

o1 : File

i2 : isReady f

o2 = false

i3 : f << "hi there" << flush;

i4 : isReady f

o4 = false

i5 : read f

o5 = hi there

i6 : isReady f

o6 = false

i7 : 
