It looks like you might be using single quotes and not back-ticks (on
the ~ key).
This works for me, with the echo in there at least.
for i in `seq 1 125`; do j=`printf %06d $i`; echo montage -geometry +4+4
a_$j.jpeg b_$j.jpeg c_$j.jpeg d_$j.jpeg montage$j.jpeg; done
--
Felix
elliott-brennan wrote:
Hi Rick,
On the basis that this is quite likely something simple that I'm not
doing, or the consequence of something I haven't explained clearly
enough (as I've very little experience with such things) -
These are the files I'm working with:
four sets of 124 images each:
a_000001.jpeg to a_000125.jpeg
b_000001.jpeg to b_000125.jpeg
c_000001.jpeg to c_000125.jpeg
d_000001.jpeg to d_000125.jpeg
I've entered the command:
$ for i in 'seq 1 999'; do j='printf %04d $i'; montage -geometry +4+4
a_$j.jpeg b_$j.jpeg c_$j.jpeg d_$j.jpeg montage$j.jpeg; done
and receive the response:
bash: syntax error near unexpected token `do'
(I've cut-and-pasted the information for accuracy)
I've also tried changing:
'seq 1 999'
to
'seq 1 125'
with no success and tried changing:
do j='printf %04d
to
do j='printf %06d
again with no success.
I'm wondering if you wouldn't mind having another look at this for me?
Thanks again and much appreciated.
Regards,
Patrick
Rick Welykochy wrote:
elliott-brennan wrote:
Now, I know I've asked a similar questions, but I thought that I'd
ask again with what may be a clearer request :)))))
For example:
I have a collection of images labelled -
a_0001.jpeg through to A0999.jpeg
b_0001.jpeg through to A0999.jpeg
c_0001.jpeg through to A0999.jpeg
d_0001.jpeg through to A0999.jpeg
I want to merge them as follows:
montage -geometry +4+4 a_0001.jpeg b_0001.jpeg c_0001.jpeg
d_0001.jpeg montage00001.jpeg
the output file is montage<number>.jpeg and needs to be a
sequentially increasing number.
Is there a command that will allow me to do this automatically
without having to individually enter each file name and output name?
I realise this is a little weird and no doubt unusual, but, as
usual, any assistance or direction would be most appreciated.
Not weird at all. Well organised file systems often use sequential
or semi-sequential numbering to keep things logical and consistent.
(Who said consistency is the last refuge of the unimaginative?)
The GNU seq command is useful for sequential numbering.
$ seq 1 5
1
2
3
4
5
As well, you can use printf to format the numbers as you wish, e.g.
$ for i in `seq 1 5`; do echo `printf a_%04d.jpeg $i`; done
a_0001.jpeg
a_0002.jpeg
a_0003.jpeg
a_0004.jpeg
a_0005.jpeg
Putting it all together:
$ for i in `seq 1 5`; do j=`printf %04d $i`; echo montage -geometry
+4+4 a_$j.jpeg b_$j.jpeg c_$j.jpeg d_$j.jpeg montage$j.jpeg; done
montage -geometry +4+4 a_0001.jpeg b_0001.jpeg c_0001.jpeg
d_0001.jpeg montage0001.jpeg
montage -geometry +4+4 a_0002.jpeg b_0002.jpeg c_0002.jpeg
d_0002.jpeg montage0002.jpeg
montage -geometry +4+4 a_0003.jpeg b_0003.jpeg c_0003.jpeg
d_0003.jpeg montage0003.jpeg
montage -geometry +4+4 a_0004.jpeg b_0004.jpeg c_0004.jpeg
d_0004.jpeg montage0004.jpeg
montage -geometry +4+4 a_0005.jpeg b_0005.jpeg c_0005.jpeg
d_0005.jpeg montage0005.jpeg
Get rid of the "echo" command, change 5 to 999 and Bob's your aunty.
cheers
rickw
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