Text Formatting ⇒ Preprint using ifdefined

[jhapk]

Hi,

I have a latex template for a journal paper. The preamble starts like this

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%preprint
\ifdefined\manuscript
  \documentclass[letterpaper,12pt]{article}

%final
\else
  \documentclass[final]{tCTM2e}
\fi                                                                       

when I type

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pdflatex filename.tex

it simply uses the documentclass tCTM2e. How do I make it use the manuscript mode from command line?

Thanks

[rf]

alternatives include a file that simply sets the name and
then links to the paper, or

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pdflatex "\def\manuscript{}\input{paper}"

(assuming you're using a un*x shell command line.