Montage, xargs and a sorted ls

Hi *,

I'm trying to produce a montage (with montage) of many images I have. However, if I do as follows

montage -tile 24x24 * index.png

They are inserted in the same order as ls ... which returns as the follows:

2
20
21
3
30

which I do not want, therefore I can use

ls | sort -n

to order my files correctly, however, how can I then pipe/pass this list into montage. I use xargs for other purposes such as

find . ...... | xargs rm.

It pipes each line separately which is perfect for my previous uses however I now need to pipe the whole list into montage so it can produce the image.

Any suggestions?
James
LVL 4
James_h1023Asked:
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woolmilkporcCommented:
Try
montage -tile 24x24 $(ls | sort -n) index.png
wmp
0

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James_h1023Author Commented:
Wonderful, that did the trick.

Incidentally, what is that called? the $() structure; so I can look up more about it.

James
0
woolmilkporcCommented:
$( ) does essentially the same as the backticks ( ` ` ) which you might be familiar with, but is far better readable.
The concept is - start a subshell, execute the command(s) given between the parentheses or the backticks, and return the result, which will replace the whole construct.
I actually don't know whether there is a another name for that concept, besides "command substitution" and maybe "subshell"  :-)
http://tldp.org/LDP/Bash-Beginners-Guide/html/sect_03_04.html 
Thx for the points!
wmp
0
James_h1023Author Commented:
Brilliant some more reading to do!

Thanks very much for your help.

James
0
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