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Full Discussion: [Beginner's questions] Filename Validation & Parsing
Top Forums Shell Programming and Scripting [Beginner's questions] Filename Validation & Parsing Post 302725409 by levaldez on Friday 2nd of November 2012 07:19:31 AM
Old 11-02-2012
Hammer & Screwdriver [Beginner's questions] Filename Validation & Parsing
Hi !!

I'm rather new both to the UNIX and scripting worlds, and I'm learning the ropes of scripting. Having said this, please excuse me if you notice certain basic errors.

I'm working on a script that implements .jar and .war files for a WAS environment and I need to perform certain validations, before copying and moving files around within different working environments.

Our .jar filename structure follows:

<whatever application name>_YYYYMMMDD_HHmm_nnnn.jar

Example:

myapp_20121031_1021_1234.jar
otherappname_20120928_0943_3212.jar

I receive the .jar filename as a parameter and I need to extract the first portion of the filename into a variable. I'm not sure how to do this. Either use the 'cut' command or 'awk'.

Basically, whenever I get the filename parameter, I must discard the final 23 bytes and keep the rest.

For example, for the first sample filename, I need to extract 'myapp' into a variable. For the second example, I need to extract the portion 'otherappname'.

I'd really appreciate your help

Thanks in advance !!

Enrique Valdez

PS: This a AIX 5.3 machine and Korn Shell.
 

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LEARN ABOUT DEBIAN

gnoemoe

GNOEMOE(1)						      General Commands Manual							GNOEMOE(1)

NAME

       gnoemoe - a GNOME MOO client

SYNOPSIS

       gnoemoe [OPTION ...]

DESCRIPTION

       GnoeMoe	is a GNOME/GTK+ MOO client.  It's stable and feature rich.  Some of the features include ANSI, MCP (the MOO Client Protocol), mul-
       tiple tabbed worlds, internal editor with syntax checker, external editors, limited ruby scripting and triggers.  GnoeMoe aims to integrate
       in the GNOME desktop environment as well as possible.

OPTIONS

       -?, --help
	      Show the help message of the application and exit.

       -d, --debug=DEBUGLEVEL
	      Enable debugging.  Specify multiple debug levels with a comma seperated list.  Available levels:	default, mcp, all.

       -l, --load=WORLDS
	      Load specified worlds.  Specify multiple worlds with a comma separated list.

       -r, --recover
	      Recover from the previous session (used with GNOME session).

       --usage
	      Display the brief ussage message of the application and exit.

       -v, --version
	      Show the version of the application and exit.

SEE ALSO

       The Gnoemoe website, http://wiki.icecrew.nl/software/GnoeMoe, and the MOO website, http://www.moo.mud.org/, for more information.

AUTHOR

       Gnoemoe was written by Jesse van den Kieboom <jesse@icecrew.nl>.

       This manual page was written by Paul van Tilburg <paulvt@debian.org>.

User Commands							    April 2006								GNOEMOE(1)
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