Hi, I need to read the standard output of an external command. This is what I came up with:
\starttext \startluacode f = io.popen "ls" context(f:read "*a") \stopluacode \stoptext 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) stack traceback: [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? Marco
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