[NTG-context] Read output of external command
homerow at lavabit.com
Sun Apr 14 12:06:13 CEST 2013
I need to read the standard output of an external command. This is
what I came up with:
f = io.popen "ls"
It works with luajittex, plain lua5.1 and lua5.2, but it fails with
a current luatex:
! LuaTeX error [string "\directlua "]:3: attempt to index global 'f' (a nil value)
[string "\directlua "]:3: in main chunk.
Why does this fail in luatex but works in lua5.2 ? What is the
correct way to obtain the output of a command?
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