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Full Discussion: find eof, then process
Top Forums Shell Programming and Scripting find eof, then process Post 45510 by mfilby on Monday 22nd of December 2003 05:29:05 PM
Old 12-22-2003
I like the EOF file idea since I think it's clumsy to expect clients to upload a separate data file that they have no real interest in. It's one more requirement that's out of my control and another responsibility for an unsophisticated user (my apologies, they're really quite intelligent but wouldn't give 2 nickels about a separate data file). The idea is to make things simple for the client. They shouldn't have to do anything different.

I've been reviewing Adobe's PDF format reference, and indeed %%EOF can appear numerous times in the file and yet not truly indicate the end of a file. However, %%EOF will always be in the last 1024 bytes of the file:

3.4.4, ÒFile TrailerÓ
17. Acrobat viewers require only that the %%EOF marker appear somewhere
within the last 1024 bytes of the file.

So again, if I had anyway, even from the host of the ftp site, to scan a directory for files containing a %%EOF, beginning the search from the "theoretical" end of the file, I'd be a happy camper. Something as simple as "fgrep -l /path/*.pdf", only recursively, and then set the resulting filenames to a variable that I could then process with mv or cp.

I'm I being to simplistic? Take it easy on me, I'm from the Apple World of GUI ignorance.
 

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LEARN ABOUT CENTOS

ps2pdf

PS2PDF(1)							    Ghostscript 							 PS2PDF(1)

NAME

       ps2pdf - Convert PostScript to PDF using ghostscript
       ps2pdf12 - Convert PostScript to PDF 1.2 (Acrobat 3-and-later compatible) using ghostscript
       ps2pdf13 - Convert PostScript to PDF 1.3 (Acrobat 4-and-later compatible) using ghostscript
       ps2pdf14 - Convert PostScript to PDF 1.4 (Acrobat 5-and-later compatible) using ghostscript

SYNOPSIS

       ps2pdf  [options...] {input.[e]ps|-} [output.pdf|-]
       ps2pdf12  [options...] {input.[e]ps|-} [output.pdf|-]
       ps2pdf13  [options...] {input.[e]ps|-} [output.pdf|-]
       ps2pdf14  [options...] {input.[e]ps|-} [output.pdf|-]

DESCRIPTION

       The ps2pdf scripts are work-alikes for nearly all the functionality (but not the user interface) of Adobe's Acrobat(TM) Distiller(TM) prod-
       uct: they convert PostScript files to Portable Document Format (PDF) files.

       If the output filename is not specified, the output is placed in a file of the same name with a '.pdf' extension  in  the  current  working
       directory.  Either  the	input filename or the output filename can be '-' to request reading from stdin or writing to stdout, respectively,
       when used as a filter.

       The three scripts differ as follows:

       -      ps2pdf12 will always produce PDF 1.2 output (Acrobat 3-and-later compatible).

       -      ps2pdf13 will always produce PDF 1.3 output (Acrobat 4-and-later compatible).

       -      ps2pdf14 will always produce PDF 1.4 output (Acrobat 5-and-later compatible).

       -      ps2pdf per se currently produces PDF 1.4 output.	However, this may change in the future. If you care about the compatibility  level
	      of the output, use ps2pdf12, ps2pdf13 or ps2pdf14, or use the -dCompatibility=1.x switch in the command line.

       There  are  some limitations in ps2pdf's conversion. See the HTML documentation for more information. A large number of Adobe Distiller(TM)
       parameters which can be used to control the conversion are also documented there, including instructions for  generating  PDF/X	and  PDF/A
       documents.

OPTIONS

       The ps2pdf scripts use the same options as gs(1).

EXAMPLES

       Converting a figure.ps to figure.pdf:

	      ps2pdf figure.ps

       A conversion with more specifics:

	      ps2pdf -dPDFSETTINGS=/prepress figure.ps proof.pdf

       Converting as part of a pipe:

	      make_report.pl -t ps | ps2pdf -dCompatibility=1.3 - - | lpr

SEE ALSO

       gs(1), ps2pdfwr(1),
       Ps2pdf.htm in the Ghostscript documentation

BUGS

       See http://bugs.ghostscript.com/ and the Usenet news group comp.lang.postscript.

VERSION

       This document was last revised for Ghostscript version 9.07.

AUTHOR

       Artifex Software, Inc. are the primary maintainers of Ghostscript.  This manpage by George Ferguson.

9.07								 12 February 2013							 PS2PDF(1)
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