system('dvips', '-q', '-t', 'letter', "$file.dvi", '-o', "$file.ps" ) == 0
system('dvips', '-q', '-t', 'letter', "$file.dvi", '-o', "$file.ps" ) == 0
open(POSTSCRIPT, "<$file.ps")
or die "can't open $file.ps: $! (error in LaTeX template?)\n";
open(POSTSCRIPT, "<$file.ps")
or die "can't open $file.ps: $! (error in LaTeX template?)\n";