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Old 01-21-2012, 08:16 PM   #1
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Distribution: Ubuntu 11.10 (64bit) / Linux Mint 12 (32bit)
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Question Extracting "rar" in multiple sub folders at once in ubuntu 11.10

i already can right click and "extract here", what i am looking to do is right click on a folder and have it extract (within each sub-folder) extract all, example i have folder "A" and it contains folders 1-5, each folder contains its own set ov "rars" that would result in their own files, however, it is very time consuming to extract each sub folder by itself, is there some way to do this using GUI desktop, for i am no good with terminal..

and as far as trying to write any "bash" or other command lines, is like being 6 years old and trying to master brain surgery..
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Old 01-21-2012, 08:46 PM   #2
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There is possibly a GUI "batch" unrar application, although I cant say for certain, since I use the commandline for this sort of thing.

Frankly, learning the basics of the command line, is a hundred fold more useful for this type of work, as it is a lot more flexible.
ie: a batch unrar GUI application will only handle batch extracting of archives, where the same thing in a command line, can be adapted to do any just about anything.
$ find . -name "*.rar" -exec unrar x '{}' \;
Making sure that you change directories to the directory that contains the rar files and relevant subdirs, otherwise the command will work from the current directory. ie: if you run it from /home/username, it will extract ALL rar files anywhere in your home directory, which could create a mess rather quickly.

Let me explain what this does.
"find ." - will find files within the current directory and any subdirectories
"-name "*.rar" - will only find *.rar files
"-exec " - will perform an external command on the results found by the "find" command.
"unrar x" - is the command to extract the rar archives
"'{}'" - tells find to append the found result to the end of the exec'd command.
"\;" - signifies the end of the exec'd command.

After extracting the archives, you could then change the "unrar -x", to "rm -f" and run it again to remove the source archives, leaving you only with the contents of the original archives.

There are a number of other ways to do this, but using "find" is often the simplest, and is a simple "one liner", no scripting as such involved.
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Old 01-21-2012, 08:46 PM   #3
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Doing this in the GUI may not be entirely possible.

If you care to open up a terminal, use the "cd" command to change into directory "A" (as you described), then you can issue the following command:
$ for subdir in 1 2 3 4 5
> do
>  cd $subdir
>  for rarfile in $(ls *.rar)
>  do
>   rar e $rarfile
>  done
> done

Last edited by indienick; 01-21-2012 at 08:48 PM.
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Old 01-22-2012, 01:32 PM   #4
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Thumbs up

thank you both for you help, it seams that i have no choice but to start learning (or attempting) to use this code and bash and terminal,

I am not sure if this is solved, but i at least know what i need to be trying to do to solve my needs.. thanks again..


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