Sed bug in OS X? Post: 36523

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Top Forums UNIX for Dummies Questions & Answers Sed bug in OS X? Post 36523 by ktoz on Friday 30th of May 2003 11:12:47 AM

05-30-2003

Registered User

Sed bug in OS X?

The actual line I'm using was more complex so I "simplified" it to the line in my original post:)

Actually what I'm doing is scanning jpeg files that have info entered in the Photoshop "file info" dialog box and extracting this info for inclusion in a database. The info I'm interested in is xml formatted with some Adobe namespace info.

This line works great for extracting the info:

egrep -a '<photoshop:([^>]+)>[^<]*</photoshop:\1>' "botanical-garden12-full.jpg"

yeilds lines like:

<photoshop:CaptionWriter>this is where the caption writer goes</photoshop:CaptionWriter>
<photoshop:Headline>this is where the headline goes</photoshop:Headline>
<photoshop:Instructions>this is where the instructions go</photoshop:Instructions>

If you then pipe it to sed to try and strip out the xml like so:

<egrep stuff from above...> | sed 's/<photoshop:\([^>]+\)>\([^<]*\)<\/photoshop:\1>/\1: \2>/g'

returns results as if the sed routine wasn't even there...

<photoshop:CaptionWriter>this is where the caption writer goes</photoshop:CaptionWriter>
<photoshop:Headline>this is where the headline goes</photoshop:Headline>
<photoshop:Instructions>this is where the instructions go</photoshop:Instructions>

I've tried various quotation, delimiter and escape styles on the above ("" as opposed to '', () as opposed to \(\) and s@@@ as opposed to s/// none of it produced the desired results.

I changed the search portion of the sed routine to a simple character class for testing and even that failed. The only thing that seems to work is a string literal.

Do you see any glaring errors in the above?

Thanks

Ken

ktoz

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getusershell

getusershell(3C)					   Standard C Library Functions 					  getusershell(3C)

NAME

       getusershell, setusershell, endusershell - get legal user shells

SYNOPSIS

       #include <unistd.h>

       char *getusershell(void);

       void setusershell(void);

       void endusershell(void);

DESCRIPTION

       The  getusershell()  function  returns  a  pointer  to  a  legal  user  shell  as defined by the system manager in the file /etc/shells. If
       /etc/shells does not exist, the following locations of the standard system shells are used in its place:

	 /bin/bash		    /bin/csh
	 /bin/jsh		    /bin/ksh
	 /bin/ksh93		    /bin/pfcsh
	 /bin/pfksh		    /bin/pfsh
	 /bin/sh		    /bin/tcsh
	 /bin/zsh		    /sbin/jsh
	 /sbin/pfsh		    /sbin/sh
	 /usr/bin/bash		    /usr/bin/csh
	 /usr/bin/jsh		    /usr/bin/ksh
	 /usr/bin/ksh93 	    /usr/bin/pfcsh
	 /usr/bin/pfksh 	    /usr/bin/pfsh
	 /usr/bin/sh		    /usr/bin/tcsh
	 /usr/bin/zsh		    /usr/sfw/bin/zsh
	 /usr/xpg4/bin/sh

       The getusershell() function opens the file /etc/shells, if it exists, and returns the next entry in the list of shells.

       The setusershell() function rewinds the file or the list.

       The endusershell() function closes the file, frees any memory used by getusershell() and setusershell(), and rewinds the file /etc/shells.

RETURN VALUES

       The getusershell() function returns a null pointer on EOF.

BUGS

       All information is contained in memory that may be freed with a call to endusershell(), so it must be copied if it is to be saved.

NOTES

       Restricted shells should not be listed in /etc/shells.

SunOS 5.11							    1 Nov 2007							  getusershell(3C)