re-direction Post: 302304629

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Top Forums Shell Programming and Scripting re-direction Post 302304629 by gsal on Tuesday 7th of April 2009 01:19:34 AM

04-07-2009

Registered User

re-direction

Say I have a single bin directory with Linux and SunOS executables, like this:

bin/myprog_lnx
bin/myprog_sun

Assume these programs read from stdin and write to stdout and, thus, are meant to be run like this:

myprog_lnx < filein > fileout

My users may log in from a Linux or Solaris client and I don't want to bother them with the suffix...I would like them to simply run the program like this:

myprog < filein > fileout

So, it occurs to me, that I could have a korn shell named "myprog" that when run, it checks for the OS and runs the appropriate executable...

Question: how can the arguments and re-direction typed at the command line after the shell script be passed to the command inside the shell script?

In other words, when I run my shell like this:

> myprog < filein > fileout

in Solaris, the shell should execute
myprog_sun < filein > fileout

when in Linux, the shell should execute
myprog_lnx < filein > fileout

==myprog====
#!/bin/sh

if [[ `uname` = 'SunOS' ]] ; then
suffix='_sun'
elif [[ `uname` = 'Linux' ]] ; then
suffix='_lnx'
fi

myprog${suffix} < filein > fileout <<< how to accomplish this effect???

==myprog====

Thanks in advance for any hints you may offer.

gsal

gsal

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LEARN ABOUT DEBIAN

aubioonset

AUBIOONSET(1)						      General Commands Manual						     AUBIOONSET(1)

NAME

       aubioonset -- a command line tool for real time onset extraction

SYNOPSIS

       aubioonset [options] [-i soundfile]

DESCRIPTION

       aubioonset attempts to detect onset times, the beginning of discreted sound events, in audio signals.

       When  started  without  an  input file argument (--input), aubioonset creates jack input and output ports. When an input file is given, the
       results are given on the console.

OPTIONS

       This program follows the usual GNU command line syntax, with long options starting with two dashes (`-').  A summary of options is included
       below.

       -i   --input filein
		 Run analysis on this audio file. Most common uncompressed formats are supported.

       -o   --output fileout
		 Save results in this file. The file will be created on the model of the input file. Results are marked by a short wood-block sam-
		 ple.

       -O   --onset mode
		 The onset detection function to run. Available functions are complexdomain, hfc, phase, specdiff, energy, kl and mkl. By default,
		 both Kullback Liebler (kl) and complex domain are used in parallel.

       -t   --threshold value
		 Set  the  threshold  value for the onset peak picking. Typical values are within 0.001 and 0.900. Default is 0.1. Lower threshold
		 values imply more onsets detected. Try 0.3 in case of over-detections.

       -j   --jack
		 Run in jack mode (default when started without input file) and creates a midi output.

       -v   --verbose
		 Show results on the console (default).

       -h   --help
		 Show summary of options.

BUGS

       For now the program has only been tested on audio signals sampled at 44.1 kHz.

SEE ALSO

       aubiotrack(1) aubionotes(1) aubiocut(1) aubiopitch(1)

AUTHOR

       This manual page was written by Paul Brossier (piem@altern.org). Permission is granted to copy,	distribute  and/or  modify  this  document
       under the terms of the GNU General Public License, Version 2 any later version published by the Free Software Foundation.

       On Debian systems, the complete text of the GNU General Public License can be found in /usr/share/common-licenses/GPL.

																     AUBIOONSET(1)