On 4/14/2013 12:06 PM, Marco Patzer wrote:
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
context(os.resultof("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)
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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If your question is of interest to others as well, please add an entry to the
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