QNX is a proprietary, real-time UNIX-like operating system used in embedded systems.

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3
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3answers
166 views

Interactive command usage reference: do you generally have that on Unix?

The question of why some commands rely on manpages whereas others rely on something like the --help flag for providing command usage reference is not new. There is usually a difference in scope ...
2
votes
1answer
110 views

ldd:FATAL: Unresolved symbol “getopt_long” called from Executable - using compiled binaries for QNX on arm. Why?

The Blackberry Playbook has formally reached EOL(april 2014), but I've installed BGShell, BGSSH-SCP-SFTP, and Term48 on it. So I have some ksh-like shell it seems with things like GNU awk 3.1.5, sed ...
7
votes
1answer
120 views

/usr/bin/random using a lot of CPU

Using QNX 6.4.1, there is a command called pidin times that shows information about processes. I think it means PID INformation. Among other things, you can see how much CPU a process has used since ...
0
votes
1answer
85 views

Route a local connection via an ethernet link in QNX

I am currently facing a challenge in QNX, where I have 2 Network Interfaces - viz. one Network port from PCIe Ethernet Expansion card (wm0) and other from the normal Ethernet port (en0). I have ...
3
votes
2answers
86 views

184 environment variables too many?

I am trying to find the cause of some OS wonkiness, and am concerned about environment variables. The software I have been handed puts an incredibly high amount of environment variables into the ...
1
vote
4answers
257 views

how to extract .z file from an old QNX in Centos

z files from an old QNX system which needs to be unpacked in preferable Centos. These files are packed with the QNX pack method and there is no Virtual Machine (VMWARE) available to load QNX and ...
1
vote
0answers
664 views

why is df update slow?

When I remove large files, then use df to check the disk usage, often it takes a noticeable amount of time to update the disk usage percentage appropriately. This affects several data management ...
3
votes
3answers
625 views

How similar are Android and QNX?

The root of the question is really: "Can you run the Android OS on a BlackBerry PlayBook?" Since one is a Linux derivative and the other is a Unix derivative, it seems a natural fit for here.
1
vote
1answer
684 views

'ps' command hangs

A coworker ran into this issue twice and I don't know what's wrong. His ps command hangs, taking about 25% of the CPU. in_progress=1 sleep 10 while [ "$in_progress" -eq 1 ]; do ...
2
votes
1answer
379 views

Alternative to xxd for QNX

I was just introduced to xxd today. See link. I am very familiar with the QNX hd and odcommands, both of which will take input and create a hex dump (or octal dump if you like). See hd and od. What I ...
1
vote
0answers
397 views

New harddrive does not show up in /dev

I am trying to add a second (unformatted) IDE hard drive to a QNX 6.4.1 VM (hosted through vmware's vSphere). Unfortunately, there is no entry for the drive in /dev (I think this is called an ...
3
votes
1answer
720 views

Measure hard-disk read(), write() speed without caching in QNX 6.5

I am working on QNX 6.5 Operating system. QNX 6.5 supports POSIX APIs. I am trying to build an application which is used to evaluate performance of hard-disks. My application will read/write/read ...
2
votes
1answer
417 views

What happens to files in mountpoint after running fs-cifs to mount NAS?

I'm running QNX Neutrino. I've got some files in /mountpoint: # ls /mountpoint /mountpoint/a /mountpoint/b And after mounting my NAS using fs-cifs like so, # fs-cifs ...
2
votes
2answers
164 views

Archive of QNX's use messages?

Context I do not know all standard linux/unix commands, so I need manpages. I found QNX's manuals (invoked by "use [command name]") terse; I prefer them to linux manpages. I can get them from QNX ...