01-13-2009
Why must it be an image, incidentally?
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1. Shell Programming and Scripting
System: Ubuntu Intrepid Ibex
I'm running webcamd as a sort of "security" program, but I need a script that will archive my webcam.jpg files.
So, take the following file:
/home/slag/www/webcam.jpg
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Place it in say:
/home/slag/www/history/
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hello all
i request you to give the solution for the following problem..
I want read the text file.and print the contents character by character..like if the text file contains google means..i want to print
g
go
goo
goog
googl
google
like this Using unix Shell scripting...
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3. Shell Programming and Scripting
Hi all,
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Hi All,
I would like to print the content from the specific line of a file .
For example... i have file abc.txt which has 100 lines of code ,from this file i would like to print the content from 20,19,18th line......like that
Regards
Srikanth (4 Replies)
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6. Shell Programming and Scripting
Hi, as the title, I have an array @f_lines with gene information in it. How can I put the content of @f_lines into a file so that I can read it?
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my script is:
/u/user/orginal/:#! /bin/ksh
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exit
test.out file contain:
./aur_prog1.log
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Given a directory containing say a few thousand files,
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Hi All
I want to compare 2 files using awk and get output of content which is not matching
I have 2 files
a.txt
123
456
780
143
b.txt
A|B|C|167|D|E
C|K|D|123|D|E
A|B|D|789|G|F
C|D|G|143|A|B
Not matching line from b.txt
O/P
A|B|C|167|D|E
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LEARN ABOUT DEBIAN
vipsthumbnail
VIPSTHUMBNAIL(1) General Commands Manual VIPSTHUMBNAIL(1)
NAME
vipsthumbnail - make thumbnails of image files
SYNOPSIS
vipsthumbnail [flags] imagefile1 imagefile2 ...
DESCRIPTION
vipsthumbnail(1) processes each imagefile in turn, shrinking each image to fit within a 128 by 128 pixel square. The shrunk image is writ-
ten to a new file named tn_imagefile.jpg. This program is typically faster and uses less memory than other image thumbnail programs.
For example:
$ vipsthumbnail fred.png jim.tif
will read image files fred.png and jim.tif and write thumbnails to the files tn_fred.jpg and tn_jim.jpg.
$ vipsthumbnail --size=64 -o thumbnails/%s.png fred.jpg
will read image file fred.jpg and write a 64 x 64 pixel thumbnail to the file thumbnails/fred.png.
On Unix machines, vips will create temporary files in "/tmp" by default. Use the environment variable TMPDIR to change this location. On
Windows, vips uses GetTempPath() to pick a location, see the MS documentation.
Use the --vips-disc-threshold command-line switch, or the IM_DISC_THRESHOLD environment variable, to make vipsthumbnail use memory rather
than temporary files.
OPTIONS
-s N, --size=N
Set the output thumbnail size to N x N pixels. The image is shrunk so that it just fits within this area, Images which are smaller
than this are expanded.
-o FORMAT, --output=FORMAT
Set the output format string. The input filename has any file type suffix removed, then that value is substitued into FORMAT replac-
ing %s. The default value is tn_%s.jpg meaning JPEG output, with tn_ prepended. You can add format options too, for example
tn_%s.jpg:20 will write JPEG images with Q set to 20.
-p I, --interpolator=I
Resample with interpolator I. Use vips --list classes to see a list of valid interpolators. The default is bilinear.
-n, --nosharpen
By default, vipsthumbnail(1) will sharpen thumbnails slightly to make them look more pleasing. This option disables this sharpening.
-e PROFILE, --eprofile=PROFILE
Export thumbnails with this ICC profile. Images are only colour-transformed if there is both an output and an input profile avail-
able. The input profile can either be embedded in the input image or supplied with the --iprofile option.
-i PROFILE, --iprofile=PROFILE
Import images with this ICC profile, if no profile is embdedded in the image. Images are only colour-transformed if there is both
an output and an input profile available. The output profile should be supplied with the --oprofile option.
-l, --nodelete
Don't delete the profile from the output image. Since all output images will generally have the same profile, vipsthumbnail(1) will
usually delete it. This option leaves the profile inside the image.
-v, --verbose
vipsthumbnail(1) normally runs silently, except for warning and error messages. This option makes it print a list of the operations
it performs on each image.
RETURN VALUE
returns 0 on success and non-zero on error.
SEE ALSO
header(1)
13 May 2010 VIPSTHUMBNAIL(1)