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Full Discussion: Need help to use regex to do search and replace. Don't know how to and can't figure out how :(
Top Forums UNIX for Beginners Questions & Answers Need help to use regex to do search and replace. Don't know how to and can't figure out how :( Post 303026960 by RudiC on Wednesday 5th of December 2018 04:38:12 PM
Old 12-05-2018
Quote:
Originally Posted by newbie_01
Hi RudiC

Doesn't work on Solaris but works perfectly on Linux.
Where and how does it fail? Please give as detailed and complete an error message as possible.

Quote:
01 - Why are you escaping the # in the beginning?
man sed:
Quote:
Addresses.
.
.
\cregexpc
Match lines matching the regular expression regexp. The c may be any character.
I use the # here because the usual / is part of the pattern.


Quote:
02 - The p before the (_ is because I want to match a single p? Is that correct?
Yes.


Quote:
03 - The #s//\1t\2/ is the one that I don't understand for the most part. Is it doing another search?
The # is the final address delimiter. An empty regex (s//) repeats the last one encountered, here: the address regex.
 

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LEARN ABOUT DEBIAN

transmission-edit

TRANSMISSION-EDIT(1)					    BSD General Commands Manual 				      TRANSMISSION-EDIT(1)

NAME

     transmission-edit -- command-line utility to modify .torrent files' announce URLs

SYNOPSIS

     transmission-edit [-h] [-a url] [-d url] [-r search replace] torrentfile(s)

DESCRIPTION

     transmission-edit command-line utility to modify .torrent files' announce URLs

OPTIONS

     -h --help
	     Show a short help page and exit.

     -a --add URL
	     Add an announce URL to the torrent's announce-list if it's not already in the list

     -d --delete URL
	     Remove an announce URL from the torrent's announce-list

     -r --replace search replace
	     Substring search-and-replace inside a torrent's announce URLs. This can be used to change an announce URL when the tracker moves or
	     your passcode changes.

EXAMPLES

     Update a tracker passcode in all your torrents:

	   $ transmission-edit -r old-passcode new-passcode ~/.config/transmission/torrents/*.torrent

AUTHORS

     Jordan Lee

SEE ALSO

     transmission-create(1), transmission-daemon(1), transmission-edit(1), transmission-gtk(1), transmission-qt(1), transmission-remote(1),
     transmission-show(1)

     http://www.transmissionbt.com/

BSD
								   June 9, 2010 							       BSD
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