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Full Discussion: Creating a pseudo-array in dash, (POSIX).
Top Forums Shell Programming and Scripting Creating a pseudo-array in dash, (POSIX). Post 303028617 by wisecracker on Friday 11th of January 2019 08:46:31 AM
Old 01-11-2019
@ Don...

Each element in the pseudo-array will be a ASCII number from 0 to 255 decimal the value of an 8 bit byte, (so therefore 1 to 3 characters long); a simple audio sample.
(However it could be a 2 byte word from 0 to 65535 decimal, depends how I feel; a more accurate sample if I decide.)
I used newlines as an element separator in one of my examples but any IFS value would probably be OK by me...

You mention ed and I have never, ever used it and I like the idea you put forwards so man page and www it is to see the possibiities.
Is there a limit to POSIX's number of variables, or is that limited to available real memory and element sizes?

@ Jim M...

I code for pure fun and I really love trying the _impossible_ and making languages do stuff they were not designed to do.

@ Scrutinzer...

Not in my local environment at the moment but will try your method out.
 

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LEARN ABOUT REDHAT

rec

play(1) 						      General Commands Manual							   play(1)

NAME

       play - play any sound file to audio device

       rec  - record audio to any sound file format

SYNOPSIS

       play [fopts] infile [effect]

       rec [fopts] outfile [effect]

DESCRIPTION

       This manual page briefly documents the play and rec commands.

       play  and  rec are programs that allow you to play and record different types of sound files from the command line.  They are front ends to
       the more general sox(1) package.  Normally, the play command will automatically detect the type and other parameters of the  soundfile.	If
       it can't do so, the parameters can be changed through options.

OPTIONS

       A summary of common options are included below.	For a complete description of options and their values, see the sox(1) man page.

       -c [channels], --channels=[channels]
	      Define the number of channels in the file.

       -d [device], --device=[device]
	      Specify a different device to play the sound file to.

       -f [format], --format=[format]
	      Specify bit format of the sample. One of s, u, U, A, a, or g.

       -r [rate], --rate=[rate]
	      Specify the sample rate of the audio data (samples per second).

       -s [size], --size=[size]
	      Specify the width of each sample.  One of b, w, l, f, d, or D.

       -t [type], --type=[type]
	      Specify audio file format to use.  Useful if it can not be automatically determined.

       -v [volume], --volume=[volume]
	      Change the audio volume

       -x , --xinu
	      Reverse the byte order of the sample (only works with 16 and 32-bit data).

       -h, --help
	      Show summary of options.

       --version
	      Show version of play/rec.

       Description of effects are described in the
	      sox(1) man page.

SEE ALSO

	sox(1)
	soxexam(1)

AUTHOR

       This manual page was written by Guenter Geiger <geiger@iem.mhsg.ac.at>, for the Debian GNU/Linux system.

       Updates by Anonymous.

								 December 11, 2001							   play(1)
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