The help (command "context") tells me: mtx-context | --noconsole disable logging to the console (logfile only) mtx-context | --batchmode run without stopping and do not show messages on the console However, neither lives up to its promise. See the two sample runs below. Because I would like to run context silently from within a Lua program, I would appreciate if this can be repaired. Hans van der Meer 105 videots: context --noconsole --once eng-dvb.tex mtx-context | run 1: luatex --fmt="/Users/hansm/TeX/context-10/tex/texmf-cache/luatex-cache/context/5fe67e0bfe781ce0dde776fb1556f32e/formats/luatex/cont-en" --jobname="eng-dvb" --lua="/Users/hansm/TeX/context-10/tex/texmf-cache/luatex-cache/context/5fe67e0bfe781ce0dde776fb1556f32e/formats/luatex/cont-en.lui" --no-parse-first-line --c:currentrun=1 --c:directives="logs.target=file" --c:fulljobname="./eng-dvb.tex" --c:input="./eng-dvb.tex" --c:kindofrun=3 --c:maxnofruns=1 --c:noconsole --c:once "cont-yes.mkiv" This is LuaTeX, Version beta-0.76.0-2013040508 (rev 4627) \write18 enabled. (/Users/hansm/TeX/context-10/tex/texmf-context/tex/context/base/cont-yes.mkiv ConTeXt ver: 2013.05.10 15:05 MKIV beta fmt: 2013.5.10 int: english/english (/Users/hansm/TeX/context-10/tex/texmf-context/tex/context/base/cont-new.mkiv) (/Users/hansm/Projects/Lua/programs/videots/eng-dvb.tex{/Users/hansm/TeX/context-10/tex/texmf/fonts/map/dvips/lm/lm-math.map}{/Users/hansm/TeX/context-10/tex/texmf/fonts/map/dvips/lm/lm-rm.map}{/Users/hansm/TeX/context-10/tex/texmf-context/fonts/map/pdftex/context/mkiv-base.map} ) ) system | total runtime: 6.930 106 videots: 106 videots: context --batchmode --once eng-dvb.tex mtx-context | run 1: luatex --fmt="/Users/hansm/TeX/context-10/tex/texmf-cache/luatex-cache/context/5fe67e0bfe781ce0dde776fb1556f32e/formats/luatex/cont-en" --interaction="batchmode" --jobname="eng-dvb" --lua="/Users/hansm/TeX/context-10/tex/texmf-cache/luatex-cache/context/5fe67e0bfe781ce0dde776fb1556f32e/formats/luatex/cont-en.lui" --no-parse-first-line --c:batchmode --c:currentrun=1 --c:fulljobname="./eng-dvb.tex" --c:input="./eng-dvb.tex" --c:kindofrun=3 --c:maxnofruns=1 --c:once "cont-yes.mkiv" This is LuaTeX, Version beta-0.76.0-2013040508 (rev 4627) \write18 enabled. system > 'cont-new.mkiv' loaded system > files > jobname 'eng-dvb', input './eng-dvb', result 'eng-dvb' fonts > latin modern fonts are not preloaded languages > language 'en' is active <LINES DELETED> mkiv lua stats > luatex banner: this is luatex, version beta-0.76.0-2013040508 (tex live 2013/dev)(rev 4627) mkiv lua stats > control sequences: 37310 of 65536 + 100000 mkiv lua stats > current memory usage: 77 MB (ctx: 67 MB) mkiv lua stats > runtime: 6.755 seconds, 11 processed pages, 11 shipped pages, 1.628 pages/second system | total runtime: 6.934