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Full Discussion: Unix and Linux Commands
Top Forums UNIX for Dummies Questions & Answers Unix and Linux Commands Post 302573348 by jim mcnamara on Monday 14th of November 2011 07:42:15 AM
Old 11-14-2011
There is some confusion here.

POSIX is a set of standards, one of the things it speaks to is the commands, options, and what the options mean.

So, if you go onto a POSIX-compliant box, all of the commands + options mentioned above behave identically. The boxes are free to have other options, if they want, for those same commands.

So your division into "UNIX" and "Linux" may not be a simple as you think. Plus, a lot of the GNU (GNU coretutils distribution) commands that come with Linux have the same base set of options, possibly with extras as well.

Your best bet is to go to Front Page | The Open Group, search for a command like tr and read the specs, then get a copy of the full documentation set from Coreutils - GNU core utilities -- compare based on that.

This is an odd enough endeavor to ask: is the homework?
 

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uri_urn(n)					    Tcl Uniform Resource Identifier Management						uri_urn(n)

__________________________________________________________________________________________________________________________________________________

NAME
uri_urn - URI utilities, URN scheme SYNOPSIS
package require Tcl 8.2 package require uri::urn ?1.1.2? uri::urn::quote url uri::urn::unquote url _________________________________________________________________ DESCRIPTION
This package provides two commands to quote and unquote the disallowed characters for url using the urn scheme, registers the scheme with the package uri, and provides internal helpers which will be automatically used by the commands uri::split and uri::join of package uri to handle urls using the urn scheme. COMMANDS
uri::urn::quote url This command quotes the characters disallowed by the urn scheme (per RFC 2141 sec2.2) in the url and returns the modified url as its result. uri::urn::unquote url This commands performs the reverse of ::uri::urn::quote. It takes an urn url, removes the quoting from all disallowed characters, and returns the modified urls as its result. BUGS, IDEAS, FEEDBACK This document, and the package it describes, will undoubtedly contain bugs and other problems. Please report such in the category uri of the Tcllib SF Trackers [http://sourceforge.net/tracker/?group_id=12883]. Please also report any ideas for enhancements you may have for either package and/or documentation. KEYWORDS
rfc 2141, uri, url, urn CATEGORY
Networking uri 1.1.2 uri_urn(n)
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