Sponsored Content
Top Forums UNIX for Advanced & Expert Users Redirection? (I do find some of the strangest things.) Post 302989221 by wisecracker on Tuesday 10th of January 2017 05:45:02 AM
Old 01-10-2017
Hi RudiC...
Macbook Pro, OSX 10.12.2, default bash terminal.
Code:
Last login: Tue Jan 10 09:03:20 on ttys000
AMIGA:amiga~> > /dev/null 2>&1 cat /tmp/noise.raw > /dev/dsp
AMIGA:amiga~> cat /tmp/noise.raw > /dev/dsp > /dev/null 2>&1
-bash: /dev/dsp: Operation not permitted
AMIGA:amiga~> 
AMIGA:amiga~> 
AMIGA:amiga~> bash --version
GNU bash, version 3.2.57(1)-release (x86_64-apple-darwin16)
Copyright (C) 2007 Free Software Foundation, Inc.
AMIGA:amiga~> _

NOTE: '/tmp/noise.raw' does NOT exist and that the error must be trapped somewhere but the __system__ one is not trapped.
However jlliagre's post makes sense because I thought it might have generated a syntax error the way I have written it, but it didn't.
 

6 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

i get the strangest feeling that lilo hates me.

i need to get rid of lilo's splash screen. i've heard that you can edit your /etc/lilo.conf and add this line: <b>append="splash=0"</b> anyway, i did that and i still have a splash screen. any idea why that didn't work, or what is another way to disable the splash screen? okay, -nydel (1 Reply)
Discussion started by: nydel
1 Replies

2. Programming

Complicating things?

So basically what im trying to do is ... Open file, read that file, than try to find .. We or we and replace them with I, but not replace the cases where words contain We or we, such as Went, went, etc a and replace them with the, but not replace the cases where words contain a, such as... (1 Reply)
Discussion started by: bconnor
1 Replies

3. Programming

Question about several things in C

Hey guys, first of all I'd like to say Hi to everyone. I am new here and this is my first post. I have a question about some C stuff. I am in Computer Science and I have an assignment for a UNIX Applications course. It is really complicated, however. We're using the C language for this and... (1 Reply)
Discussion started by: V4D3R
1 Replies

4. UNIX for Advanced & Expert Users

shell redirection in find

hi, i need to clear data off a DOA backup drive. i try this, but just get a file {} in . and no change on the backup drive. bash shell find /mnt/usbbackup -xdev -type f -exec echo `date` > {} \; any ideas? thanks. :) (1 Reply)
Discussion started by: drewnichols
1 Replies

5. UNIX for Dummies Questions & Answers

Just trying to find out a few things ....

Hi everyone Just a couple of quick questions if I may. Can I ask what is meant by "flavours"?? I've come across it many times in the forums and I'm guessing that it is a variery of either Linux or UNIX (I know nil about either) which has developed but not really got a clue. ... (1 Reply)
Discussion started by: Tiramisu
1 Replies

6. Shell Programming and Scripting

Several exec on find send all the output to the last redirection

Example script: find mydir -type f -exec echo {}>aaa \; -exec echo {}>bbb \;The two paths go the the bbb file, while there should be one of them on each file. How should I do it to get it working? (2 Replies)
Discussion started by: Tribe
2 Replies
Detail Classes(3)						       Coin							 Detail Classes(3)

NAME
Detail Classes - Classes class SoConeDetail The SoConeDetail class contains information about the parts of a SoCone shape. Instances of this class are used for storing information about hit points on cone geometry after pick operations, and for storing information returned to tessellation callbacks. " class SoCubeDetail The SoCubeDetail class contains information about the parts of a SoCube shape. Instances of this class are used for storing information about hit points on cone geometry after pick operations, and for storing information returned to tessellation callbacks. " class SoCylinderDetail The SoCylinderDetail class contains information about the parts of a SoCylinder shape. Instances of this class are used for storing information about hit points on cylinder geometry after pick operations, and for storing information returned to tessellation callbacks. " class SoDetail The SoDetail class is the superclass for all classes storing detailed information about particular shapes. Detail information about shapes is used in relation to picking actions in Coin. They typically contain the relevant information about what particular part of the shape a pick ray intersected with. " class SoFaceDetail The SoFaceDetail class is for storing detailed polygon information. Instances of this class are used among other things for storing information about polygons after pick operations, and for storing information returned to tessellation callbacks. " class SoLineDetail The SoLineDetail class is for storing detailed 3D line information. Instances of this class are used among other things for storing information about lines after pick operations, and for storing information returned to tessellation callbacks. " class SoNodeKitDetail The SoNodeKitDetail class is yet to be documented. When a pick action is executed and geometry within a nodekit is hit, the nodekit generates an SoNodeKitDetail object which contains information about the specific part inside the nodekit hit by the pick ray. " class SoPointDetail The SoPointDetail class is for storing detailed information for a single 3D point. Instances of this class are used among other things for storing information about the vertices of lines and polygons after pick operations, and for storing information returned to tessellation callbacks. " class SoTextDetail The SoTextDetail stores information about a character in a string. Instances of this class are used for storing information about hit points on textual 2D or 3D geometry after pick operations, and for storing information returned to tessellation callbacks. " class SoDetailList The SoDetailList class is a container for pointers to SoDetail objects. This list class will delete the details when destructed/truncated, or when a detail in the list is replaced by another detail. The caller is responsible for allocating the details passed to the list, but should not deallocate them since this will be handled by the list. " Detailed Description Detail classes are objects that deliver additional information wherever the SoPrimitiveVertex class is used. This goes for ray picking results, and it also goes for primitive generation by SoShape classes for the SoCallbackAction class and fallback shape rendering through primitive generation (a useful debugging trick when debugging for instance raypicking). Author Generated automatically by Doxygen for Coin from the source code. Version 3.1.3 Wed May 23 2012 Detail Classes(3)
All times are GMT -4. The time now is 12:31 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy