If you want input1 and input2 to always be the same, you could make input2 a symlink to input1.
If they must be kept separate for some reason and merged later -- if you're expecting bash to be faster than cp, that's kind of optimistic. Special-purpose utility optimized for this, vs a hand-written shell script?
-n for no-clobber, it will not overwrite anything in input2.
Hi
I want to copy the structure from one place to another.
-> cd /hol/;
-> find . -type d | cpio -pvdm /abc/cat;
while copying the structure I want to exclude some directories like test1 and Test.
I have read somewhere that this can be done with -prune option.
Could anyone... (2 Replies)
Hello!
Please, help me write this simple script using bash scripting.
Task:
In Folder1 I have files:
name1.txt, name2.txt, name3.txt .. etc
In Folder2 may located such files:
name1.txt, name2.txt .. etc
In Folder3 may located files like:
name1.txt_abc{some_symbols}_vxz,... (6 Replies)
I am trying to make a unix shell script that will make 99 folders 99 deep (counting the first level folders). So far i have made it make the first 99 folders and 99 more in all of the folders. The only problem is the only way i have found is copying and pasting part of the script over and over and... (18 Replies)
Hello again,
A little while back I got help with creating a command to search all directories and sub directories for files from daystart of day x.
I'm wondering if there is a command that I've overlooked that may be able to search for / write folder names to an output file which ideally... (2 Replies)
hi all
I want a script that will use ftp to copy folder and sub folders from source server to current server. if i use -r switch then it just copies folders for 5 level. (1 Reply)
HI All
I have one master folder : ABCXYZ
I have sub folder in there :
AB
XY
AZ
AC
PR
AL
Now i want to copy AB , PR ,AL in to one new folder and zip it with time stamp.
like
Pre_02192013_12_32.zip
Zip folder should be in master folder. (2 Replies)
Hi,
Below is the listing of folder "greece"
$ cd greece
$ ls
tmp
server
logs
properties
I wish to copy all the contents of the dir "greece" to /tmp except the below three folders and its contents under "greece"
1.logs
2.server/bin/logs
3. server/cacheI am using sh (normal C... (4 Replies)
Dear All,
I will appreciate any help received. Our system is running on hpux v1
My problem is as follows:
We have many customer folders with name fd000100, fd000101 and so on
e.g.
(Testrun)(testsqa):/>ll /TESTrun/fd000100
total 48
drwxrwx--- 2 fq000100 test 96 Jun 27 2004... (17 Replies)
Hi guys,
Don't really know much about unix or anything, just starting to mess around a little bit to have more understanding in general.
So, I tried using rsync to copy my macbook pro backup/clone from an external drive I have to another external drive. I ended up using...
"sudo rsync -a... (1 Reply)
Hi,
So i know we use cp -r as a basic to copy folders/files.
I would like this BUT i would like to show the output of the files being copied.
With the amazing knowledge i have i have gone as far as this:
1) find source/* -exec cp -r {} target/ \;
2) for ObjectToBeCopied in `find... (6 Replies)
Discussion started by: Imre
6 Replies
LEARN ABOUT REDHAT
idiff
IDIFF(1) General Commands Manual IDIFF(1)NAME
idiff - compare two images
SYNOPSIS
idiff [options] image1 image2
DESCRIPTION
The idiff utility is invoked as follows:
idiff [options] image1 image2
Where input1 and input2 are the names of two image files that should be compared. They may be of any format recognized by OpenImageIO
(i.e., for which image-reading plugins are available).
If the two input images are not the same resolutions, or do not have the same number of channels, the comparison will return FAILURE imme-
diately and will not attempt to compare the pixels of the two images. If they are the same dimensions, the pixels of the two images will be
compared, and a report will be printed including the mean and maximum error, how many pixels were above the warning and failure thresholds,
and whether the result is PASS, WARNING, or FAILURE. For example:
$ idiff a.jpg b.jpg
Comparing "a.jpg" and "b.jpg"
Mean error = 0.00450079
RMS error = 0.00764215
Peak SNR = 42.3357
Max error = 0.254902 @ (700, 222, B)
574062 pixels (82.1%) over 1e-06
574062 pixels (82.1%) over 1e-06
FAILURE
The "mean error" is the average difference (per channel, per pixel). The "max error" is the largest difference in any pixel channel, and
will point out on which pixel and channel it was found. It will also give a count of how many pixels were above the warning and failure
thresholds.
The metadata of the two images (e.g., the comments) are not currently compared; only differences in pixel values are taken into considera-
tion.
For a complete description, see /usr/share/doc/libopenimageio-dev/openimageio.pdf.gz.
OPTIONS --help Print help message
-v Verbose status messages
-a Compare all subimages/miplevels
Thresholding and comparison options
-fail %g
Failure threshold difference (0.000001)
-failpercent %g
Allow this percentage of failures (0)
-hardfail %g
Fail if any one pixel exceeds this error (infinity)
-warn %g
Warning threshold difference (0.00001)
-warnpercent %g
Allow this percentage of warnings (0)
-hardwarn %g
Warn if any one pixel exceeds this error (infinity)
-p Perform perceptual (rather than numeric) comparison
Difference image options
-o %s Output difference image
-od Output image only if nonzero difference
-abs Output image of absolute value, not signed difference
-scale %g
Scale the output image by this factor
SEE ALSO iconvert(1), igrep(1), iinfo(1), iprocess(1), iv(1), maketx(1), oiiotool(1).
AUTHOR
OpenImageIO was written by Larry Gritz and the other authors and contributors.
This manual page was written by IRIE Shinsuke <irieshinsuke@yahoo.co.jp>, for the Debian project (and may be used by others).
May 19, 2012 IDIFF(1)