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Top Forums UNIX for Dummies Questions & Answers Need a script to delete multiple files Post 95977 by mahendramahendr on Monday 16th of January 2006 01:50:55 PM
Old 01-16-2006
Try this :

ls | grep "[1-9].txt$" | xargs -I {} rm "{}"


If there is a space in the file name, then rm assumes it as more than one file.. so enclose the file name in double quotes to resolve the problem.
 

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ENVEXT(1)						  The Canonical Csound Reference						 ENVEXT(1)

NAME
envext - Extracts the envelope of a file to a text file. . SYNTAX
envext [-flags] soundfile csound -U envext [-flags] soundfile INITIALIZATION
soundfile - Name of the input soundfile. The following flags are available for envext (The default values are stated in parenthesis): -o fnam Name of output filename (newenv) -w size (in seconds) of analysis window (0.25) The envext utility generates a text file containing time and amplitude pairs by finding the absolute peak within each window. EXAMPLE
Using the command (while in the manual directory): csound -U envext examples/mary.wav will produce the a text file containing the following: 0.000 0.000 0.000 0.000 0.250 0.000 0.500 0.000 0.750 0.000 1.249 0.170 1.499 0.269 1.530 0.307 1.872 0.263 2.056 0.304 2.294 0.241 2.570 0.216 2.761 0.178 3.077 0.011 3.251 0.001 3.500 0.000 Which shows the time for the peak amplitude within each measured window. CREDITS
Author: John ffitch 1995 AUTHORS
Barry Vercoe MIT Media Lab Author. Dan Ellis MIT Media Lab, Cambridge Massachussetts Author. COPYRIGHT
5.10 08/01/2011 ENVEXT(1)
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