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Full Discussion: Patterns in Filenames
Top Forums Shell Programming and Scripting Patterns in Filenames Post 302220767 by msb65 on Friday 1st of August 2008 02:26:47 PM
Old 08-01-2008
Patterns in Filenames
Hi,

To start, I am using a bash shell on a G4 powerbook running Leopard. I am attempting to write a shell script that will automate the processing of satellite imagery. All the filenames are of the following construction:

A2008196000500.L2

where A indicates the sensor, the next four digits represent the year, the next three represent the julian day, and the remaining represent the hour, minute, and second of observation. All I am interested in are the three digits that specify the julian day, so my filenames are effectively:

?????ddd*.L2 (note it's not enough to say *ddd*, as the three digits of the julian day can match patterns in the rest of the filename)

The julian days of my files range from 001 to 366. I would like to be able to list all the files with julian days that range between two different values (ex all the files between julian day 3 and 10). How do I do this? It's not enough to type:

ls ?????[003-010]*.L2

Any help is greatly appreciated.
 

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LEARN ABOUT CENTOS

platform::shell

platform::shell(n)					       Tcl Bundled Packages						platform::shell(n)

__________________________________________________________________________________________________________________________________________________

NAME

       platform::shell - System identification support code and utilities

SYNOPSIS

       package require platform::shell ?1.1.4?

       platform::shell::generic shell
       platform::shell::identify shell
       platform::shell::platform shell
_________________________________________________________________

DESCRIPTION

       The platform::shell package provides several utility commands useful for the identification of the architecture of a specific Tcl shell.

       This  package  allows the identification of the architecture of a specific Tcl shell different from the shell running the package. The only
       requirement is that the other shell (identified by its path), is actually executable on the current machine.

       While for most platform this means that the architecture of the interrogated shell is identical to the architecture of  the  running  shell
       this  is  not generally true. A counter example are all platforms which have 32 and 64 bit variants and where a 64bit system is able to run
       32bit code. For these running and interrogated shell may have different 32/64 bit settings and thus different identifiers.

       For applications like a code repository it is important to identify the architecture of the shell which will  actually  run  the  installed
       packages, versus the architecture of the shell running the repository software.

COMMANDS

       platform::shell::identify shell
	      This command does the same identification as platform::identify, for the specified Tcl shell, in contrast to the running shell.

       platform::shell::generic shell
	      This command does the same identification as platform::generic, for the specified Tcl shell, in contrast to the running shell.

       platform::shell::platform shell
	      This command returns the contents of tcl_platform(platform) for the specified Tcl shell.

KEYWORDS

       operating system, cpu architecture, platform, architecture

platform::shell 						       1.1.4							platform::shell(n)
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