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Full Discussion: Date Comparision in the File
Top Forums Shell Programming and Scripting Date Comparision in the File Post 302337742 by edidataguy on Friday 24th of July 2009 08:30:08 PM
Old 07-24-2009
Quote:
Originally Posted by satheesh_color
Hi,

The files are just created and left alone.



Thanks,
Satheesh

---------- Post updated at 10:16 PM ---------- Previous update was at 10:15 PM ----------

Hi,

When i try this it shows me an error


$ date -d "100 day ago" +%Y%m%d
date: illegal option -- d
Usage: date [-u] [+format]
date [-u] [mmddhhmm[[cc]yy]]
date [-a [-]sss.fff]



Thanks,
Satheesh
1. The files are just created and left alone.
--- That is because I am just echoing and not moving.
--- You will have to change that line to your requirement.

2. When i try this it shows me an error
--- Seems like you have version issues.
--- -d is not an option.
--- Type the following at the prompt and tell me what happens:
Code:
ksh
date -d "100 day ago" +%Y%m%d

Also, try
Code:
date --h

 

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LEARN ABOUT DEBIAN

r8tohdf

R8TOHDF(1)						      General Commands Manual							R8TOHDF(1)

NAME

       r8tohdf - convert 8-bit raster images to HDF format

SYNOPSIS

       r8tohdf [number-of-rows number-of-columns] output-filename [-p palette-filename] [-c] [-r] [-i] raw-raster-image-filename-1, raw-raster-
	      image-filename-2, ...

DESCRIPTION

       r8tohdf converts a set of raw raster images to the HDF RIS8 format and writes them to a file.

OPTIONS

       -p pallette-file
	      Specify the name of the palette file.

       -c     Run length coding.  Compress the output data using run-length encoding.

       -i     IMCOMP Compression.  Compress the output data using the IMCOMP method.

       -r     No Compression.  Apply no compression to the output data. (the default).

EXAMPLES

       A file named "rawras" contains a 256 x 512-byte raw raster image, and its palette is stored in a file name "mypal". To convert the informa-
       tion in these files to an RIS8 without compression and store the RIS8 in a file named "ras.hdf", enter the following r8tohdf command:

	 r8tohdf 256 512 ras.hdf -p mypal rawras

       A  800 x 1000-byte raw raster image is stored in a file named "bigpic".	This data must be converted to a RIS8 without a palette, compress-
       ing it using run-length encoding, then stored in a file named "bigpic.hdf". The following command will do this:

	 r8tohdf 800 1000 bigpic.hdf -c bigpic

       A 300 x 400 raw raster image is contained in each of the files named "pic1", "pic2", and "pic3". To convert all three files to RIS8s,  com-
       press them using the IMCOMP method, and store them in a file named "pic.hdf", enter

	 r8tohdf 300 400 pic.hdf -i pic1 pic2 pic3

       Different  types of raster image data are to be stored in a file named "ras.hdf". The image data in the file "rawras1" will be stored with-
       out a palette. The image data sets from the file named "rawras2" are to be stored with a palette extracted from a file named  "mypal".  The
       images from the "rawras1" and "rawras2" files are to be compressed using run-length encoding, and the image in the "rawras3" file is not to
       be compressed. The size of all images are 256 x 512 bytes. The following command is used to do this:

	 r8tohdf 256 512 ras.hdf -c rawras1 -p mypal rawras2 -r rawras3

SEE ALSO

       hdftor8(1), hdf(5)

								 November 6, 1999							R8TOHDF(1)
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