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Published on 2009-11-14T22:14:29Z
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2010/05/07
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I'd like to open a pipe using popen() and have non-blocking 'read' access to it.
How can I achieve this?
(The examples I found were all blocking/synchronous)
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I've got a problem with apt-get update and apt-get install ... commands .
every time update or installing fails and errors are :
Get:1 http://dl.google.com stable Release.gpg [198B]
Ign http://dl.google.com/linux/chrome/deb/ stable/main Translation-en_US
Get:2 http://dl…
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sh@ubuntu:/home/ccpp/helloworld$ make
gcc-4.6 -O2 -DMODULE -D_KERNEL_ -W -Wall -Wstrict-prototypes -Wmissing-prototypes -isystem /lib/modules/`uname -r`/build/include -c -o hello-1.o hello-1.c
hello-1.c:4:0: warning: "MODULE" redefined [enabled by default]
<command-line>:0:0: note: this is…
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I am having trouble accessing the several critical header files that show to be a part of the build process.
The "Ubuntu Software Center" shows "Build Essentials" as installed:
Next I did the following two commands, which did not improve the problem:
~$ sudo apt-get install build-essential
[sudo]…
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I'm trying to update my Debian machine to 2.6.32-46 (which is the new stable). However, after doing apt-get update my apt-cache search linux-image shows me:
linux-headers-2.6.32-5-486 - Header files for Linux 2.6.32-5-486
linux-headers-2.6.32-5-686-bigmem - Header files for Linux 2.6.32-5-686-bigmem
linux-headers-2…
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I'm helping out with a project for an embedded device that only has USB and no serial. This device is running Linux.
These days, when we need to connect to a serial port on a device we typically use a USB to serial adapter (on something like a phone system or a load balancing device, etc). I would…
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I am trying to amend the macro below to accept a macro parameter as the 'location' argument for a dir command. However I cannot get it to resolve correctly due to the nested quotes issue. Using %str(%') does not work, neither do quoting functions for some reason.
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Is there a filter which I could use to rate-limit a pipe on linux? If this exists, let call it rate-limit, I want to be able to type in a terminal something like
cat /dev/urandom | rate-limit 3 -k | foo
in order to send a a stream of random bytes to foo's standard input at a rate (lower than) 3…
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When reading about pipes in Advanced Programming in the UNIX Environment, I noticed that after a fork that the parent can close() the read end of a pipe and it doesn't close the read end for the child. When a process forks, does its file descriptors get retained? What I mean by this is that before…
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For example,
Say I want to list the contents of a folder and directly paste them into a chat window for a friend to see.
I realize I could do ls > filename.txt to create a file (filename.txt) with those contents; I'd then have to open or print the file and manually select and copy the text…
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I try upgrading and this is what I get:
christopher@chris-computer:~$ sudo apt-get upgrade
[sudo] password for christopher:
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages will be upgraded:
librhythmbox-core7
1 upgraded, 0…
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