Iptc utility syntax question Post: 302313105

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Special Forums UNIX Desktop Questions & Answers Iptc utility syntax question Post 302313105 by SilversleevesX on Monday 4th of May 2009 07:17:05 PM

05-04-2009

Registered User

Iptc utility syntax question

I just found and installed David Moore's libiptcdata with its iptc command-line utility. It's about the latter that my question is based.

The usage syntax is : iptc [OPTIONS] [FILE]...
where -m requires an IPTC field name, and -v is the value to assign or modify in that field. This value is a string bounded in double quotes. The thing I'm curious about (and as this little toy was written in 2005 I doubt Mr Moore is at his same email address as the one posted on his SourceForge manual page shows) is as follows:

How would one safely punctuate the value string, say, for a Caption or Special Instructions?

I've already tried an exclamation point, whereupon my bash shell reminded me that's a command in that shell (it noticed it even as it was in dbl-quotes). I suspect, then, that an alternate means of punctuation would have to be used. Having never installed or made any use of anything like this, I'm guessing it would either be the hex corresponding to the punctuation mark one wanted to represent, joined to the rest of the string by ampersand/s, or else an ampersand and another string containing the PM.
I suppose, also, that a hint or clue as to why would be in the C++ code in which this was written. Problem is, I don't know C++ well enough to know what to look for.

Could someone familiar with C++ coding download the libfiles (etc) and try to glean what the safer syntax would be to punctuate these strings [hex or &-signs between strings]?

Thanks for giving this a read.

BZT

SilversleevesX

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acpihelp

ACPIHELP(1)						      General Commands Manual						       ACPIHELP(1)

NAME

       acpihelp - ACPI help utility

SYNOPSIS

       acpihelp <option>...  [<name-prefix>|<hex-value>]

DESCRIPTION

       This manual page briefly documents the acpihelp command. The option list is taken from the acpihelp interactive help.

       acpihelp provides descriptive text for AML and ASL keywords, methods, and opcodes.

       Much more detailed documentation may be found at http://www.acpica.org/documentation/.

       If neither a <name-prefix> or a <hex-value> is provided, acpihelp will do the logical equivalent of a "display all."

       A default search (that is, a search with no options) and a <name-prefix> can mean two different things: (1) if <name-prefix> does not start
       with an underscore, find ASL operator names, or (2) if <name-prefix> does start with an underscore, find ASL predefined method names.

OPTIONS

   ACPI Names and Symbols
       -k [<name-prefix>]
	      Find/Display ASL non-operator keyword(s)

       -m [<name-prefix>]
	      Find/Display AML opcode name(s)

       -p [<name-prefix>]
	      Find/Display ASL predefined method name(s)

       -s [<name-prefix>]
	      Find/Display ASL operator name(s)

   ACPI Values
       -e [<hex-value>]
	      Decode ACPICA exception code

       -i     Display known ACPI Device IDs (_HID)

       -i [<hex-value>]
	      Decode hex AML opcode

AUTHOR

       acpihelp was written by Robert Moore <robert.moore@intel.com>.

       This manual page was written by Al Stone <ahs3@redhat.com> for the Fedora project (but may be used by others).

								 January 23, 2013						       ACPIHELP(1)