Patterns in Filenames


 
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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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shell(1F)							   FMLI Commands							 shell(1F)

NAME
shell - run a command using shell SYNOPSIS
shell command [command] ... DESCRIPTION
The shell function concatenate its arguments, separating each by a space, and passes this string to the shell ($SHELL if set, otherwise /usr/bin/sh). EXAMPLES
Example 1 A sample output of shell command. Since the Form and Menu Language does not directly support background processing, the shell function can be used instead. `shell "build prog > /dev/null &"` If you want the user to continue to be able to interact with the application while the background job is running, the output of an exe- cutable run by shell in the background must be redirected: to a file if you want to save the output, or to /dev/null if you don't want to save it (or if there is no output), otherwise your application may appear to be hung until the background job finishes processing. shell can also be used to execute a command that has the same name as an FMLI built-in function. NOTES
The arguments to shell will be concatenate using spaces, which may or may not do what is expected. The variables set in local environments will not be expanded by the shell because "local" means "local to the current process." ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWcsu | +-----------------------------+-----------------------------+ SEE ALSO
sh(1), attributes(5) SunOS 5.11 5 Jul 1990 shell(1F)