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Full Discussion: The Start Of A Simple Audio Scope Shell Script...
Top Forums Shell Programming and Scripting The Start Of A Simple Audio Scope Shell Script... Post 302872807 by wisecracker on Sunday 10th of November 2013 06:48:52 AM
Old 11-10-2013
Major update this time guys and gals.

Version now set at 0.20.00.

Frequency Counter added for the symmetrical waveforms sine, square, triangle, (and maybe sawtooth).
This is for the future addition of the DC component and measures from 50Hz to 3500Hz to within 0.1% accuracy.
In DEMO mode this will always read 500Hz as that is the file manually generated for the task.
Many thanks to "agama" some time ago for his input using an array to speed up the Freq Counter time.
Worked an absolute treat...

Code now added for the creation of running files ready for the vertical calibration.

Note, that the vertical amplifier and calbrator are built and the circuit for the calibrator is adeed to the
end of the script.

The Windows version of the vertical calibrator SW works as a genuine file under Windows but as this is generated
on the fly it has NOT been transfered and tested yet. Feedback would be most welcome on this one. It should give
a 1KHz tone for around 8 seconds ONLY and has to be rerun ATM...

Enjoy this latest update...

Bazza...
02000.sh.txt (47.6 KB) 
Last edited by wisecracker; 12-30-2013 at 06:34 AM.. Reason: Code section now removed.
 

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LEARN ABOUT DEBIAN

update-initramfs

UPDATE-INITRAMFS(8)					      update-initramfs manual					       UPDATE-INITRAMFS(8)

NAME

       update-initramfs - generate an initramfs image

SYNOPSIS

       update-initramfs -c|-d|-u [-k version] [-t] [-v] [-b] [-h]

DESCRIPTION

       The  update-initramfs  script manages your initramfs images on your local box.  It keeps track of the existing initramfs archives in /boot.
       There are three modes of operation create, update or delete.  You must at least specify one of those modes.

       The initramfs is a gzipped cpio archive.  At boot time, the kernel unpacks that archive into RAM disk, mounts and uses it as  initial  root
       file system. All finding of the root device happens in this early userspace.

OPTIONS

	-k  version
	      Set  the	specific  kernel  version for whom the initramfs will be generated.  For example the output of uname -r for your currently
	      running kernel.  This argument is optional for update. The default is the latest kernel version.

	      The use of "all" for the version string specifies update-initramfs to execute the chosen action for all kernel  versions,  that  are
	      already known to update-initramfs.

	-c    This mode creates a new initramfs.

	-u    This mode updates an existing initramfs.

	-d    This mode removes an existing initramfs.

	-t    Allows one to take over an custom initramfs with a newer one.

	-v    This option increases the amount of information you are given during the chosen action.

	-b    Set an different bootdir for the image creation.

	-h    Print a short help page describing the available options in update-initramfs.

EXAMPLES

       Update the initramfs of the newest kernel:

       update-initramfs -u

       Create the initramfs for a specific kernel:

       update-initramfs -c -k 2.6.18-1-686

FILES

       /etc/initramfs-tools/update-initramfs.conf

AUTHOR

       The initramfs-tools are written by Maximilian Attems <maks@debian.org>, Jeff Bailey <jbailey@raspberryginger.com> and numerous others.

SEE ALSO

	initramfs.conf(5), initramfs-tools(8), mkinitramfs(8).

Linux								    2008/12/19						       UPDATE-INITRAMFS(8)
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