I will have to draw it in text mode so it will take a while to do however just assume a simple multivib and from one of the transistor collectors add this for the chopper...
This is 0 - +0.1V DC. Effectively 10K/Volt, worst case per cycle, for this range...
I am aware of any drawbacks but remember kids have short attention spans so the simpler and quicker to get going the better.
Code:
R3 = 1M
O/P O-----------------*----/\/\/\----+
| __|__
| /////
=== C1 = 1uF
|
R1 = 1K |
DC I/P O----/\/\/\----*--*--+
| |
\ o C Q1 = BC549
/ \ b
R2 = 100K \ \|__o----/\/\/\----O Square wave in from approx 2KHz multivib.
/ /| R4 = 22K
\ |/_
/ o e
| |
_GND_ O----*-------*-----*--------------------O
__|__
/////
Hi,
I am stuck while developing a shell sub-routine which checks the log file for "success" or "failure". The subroutine reads the log file and checks for key word "success", if found it set the variable (found=1). It returns success or failure based on this variable.
My problem is, I can... (2 Replies)
Hi,
I am new to unix and using linux 7.2. I would like to create a script that would make it easyer for me to run my java programms. At the moment I have to type java myJavaprogram
I am trying to write a script that will allow me to type something like this "myscript myJavaprogram" or maybe... (4 Replies)
hi all,
i'm using the following script,
Status=1
Function_do ()
{
while read line;
do
if ; then
#echo $line
if ; then
Status=0
echo " LINKINK ERROR "
fi
fi
done < ldd.log
}
Function_do (4 Replies)
Hi All,
I would like to develop a shell script for stop & start an application server (1-4) on Solaris box. Here are the user requirements for this task.
1. User will input the option which server they wish to stop.
2. Will clear cache files from specific location.
3. ... (1 Reply)
The scope of the shell/perl script is to read the input text file. Validate the expiry date of each certificate and send the mail to the user. The user takes action to add the new certificate to the storage file and user owns the responsibility to update the input text file with the new certificate... (5 Replies)
Hi,
Pleasse could someone advise why i'm getting this error below - No such file or directory
dev6:$ ls -ltr ReleaseManagement.sh
-rwxr-xr-x 1 dev fix 4830 Aug 22 11:13 ReleaseManagement.sh
dev6:$ ./ReleaseManagement.sh
: No such file or directory
dev6:$
thank you (2 Replies)
This site is the first to get this snippet.
It will capture an audio recording of any time length within the limits of OSX's QuickTime Player's capablility...
A shell script derivative of this will be used as a further capture for CygWin's AudioScope.sh.
Thoroughly read ALL the comments in... (0 Replies)
Hi,
I want 10000+ unique Audio file of approx 2MB each. How can i generate numerous audio files using shell script. Any tool, command or suggestions are welcome.
If i give one audio seed file then can we create numerous unique files with same seed file?
Any help is highly appreciable.... (11 Replies)
Hi all...
Well I have not been inactive but working out how to make OSX 10.14.x command line audio player have a variable sample rate.
This is a back door as afplay does not have a sample rate flag unlike aplay for ALSA, in Linux flavours.
This is a DEMO only but a derivative of it will... (2 Replies)
Discussion started by: wisecracker
2 Replies
LEARN ABOUT DEBIAN
approx-gc
APPROX-GC(8) System Manager's Manual APPROX-GC(8)NAME
approx-gc - garbage-collect the cache of Debian archive files
SYNOPSIS
approx-gc [OPTION]...
DESCRIPTION
approx-gc scans the cache created by approx(8) and finds files that are corrupted or no longer needed. With no options specified, these
files are listed on standard output and removed from the cache.
A corrupted file is one whose size or checksum does not match the value specified in the Packages or Sources file.
An unneeded file is one that is not referenced from any distribution's Packages or Sources file.
approx-gc may take several minutes to finish.
OPTIONS -c file, --config file
Specify an additional configuration file. May be used multiple times.
-f, --fast
Don't perform checksum validation.
-k, --keep, -s, --simulate
Don't remove files from the cache.
-q, --quiet
Don't print file names.
-v, --verbose
Print the reason for removal of each file.
EXAMPLES
To remove all unneeded or corrupted files from the cache:
approx-gc --quiet
This is run as a weekly cron(8) job.
To list the files that would be removed from the cache, without actually doing so:
approx-gc --keep
FILES
/etc/approx/approx.conf
Configuration file for approx and related programs.
/var/cache/approx
Default cache directory for archive files.
SEE ALSO approx.conf(5), approx(8), cron(8)AUTHOR
Eric Cooper <ecc@cmu.edu>
May 2011 APPROX-GC(8)