Re^2: pretending that the contents of a variable are files

perldoc -f open says (among other things):

You are not allowed to "open" to a command that pipes both in *and* ou
+t, but see IPC::Open2, IPC::Open3, 
"Bidirectional Communication with Another Process" in perlipc for alte
+rnatives.
[download]

so I suggest hopping to perldoc IPC::Open2 and perldoc IPC::Open3 directly... update: changed pre- to code-tags

Comment on Re^2: pretending that the contents of a variable are files Select or Download Code