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Questions tagged [bsd]

BSD is a family of Unix-like operating systems, including FreeBSD, NetBSD and OpenBSD.

510 questions
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How do I use a new-line replacement in a BSD sed?

Greetings, how do I perform the following in BSD sed? sed 's/ /\n/g' From the man-page it states that \n will be treated literally within a replacement string, how do I avoid this behavior? Is there an alternate? I'm using Mac OS Snow Leopard, I…
Brett Ryan
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What's the best way to get to know linux or BSD kernel internals?

I'd like to gain better knowledge of operating system internals. Process management, memory management, and stuff like that. I was thinking of learning by getting to know either linux or BSD kernel. Which one kernel is better for learning…
Michał Piaskowski
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Good collection of libraries for C?

I'm looking for a good collection of libraries for ANSI-C, stuff for handling vectors, hash maps, binary tress, string processing, etc.
thr
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formatted modified date/time of file on mac bash?

In my bash script on mac (snow leopard) I have a path and filename, and I need to get the modified date/time of that file. I found I could do: stat -f "%m" $MYFILE However, that returns what I assume is epoch date/time. I need the date/time…
David Burson
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How can I use rsync to backup files changed within a recent period?

Is it possible to specify a time range so that rsync only operates on recently changed files. I'm writing a script to backup recently added files over SSH and rsync seems like an efficient solution. My problem is that my source directories contain a…
Ken
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How to run *BSD OS on Docker?

How to run *BSD (Open, Free, etc.) on Docker? I am using Docker for Mac. But There is no BSD image on Docker Hub. How I can run it?
KiYugadgeter
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Risks and rewards of using /dev/autofs_nowait on OS X

Throughout the CoreFoundation framework source, POSIX filesystem API calls (e.g. open(), stat(), et al…) are wrapped in an idiom wherein a descriptor on /dev/autofs_nowait is acquired – with open(…, 0) – before the POSIX calls are made; afterwards…
fish2000
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How to guarantee a specified file is a device on BSD/Linux from PHP?

While working on a project that reads from /dev/urandom to generate random bytes, it was suggested that I check to make sure that /dev/urandom is a device not just a file. The most straightforward way seems to be something like: /** * Is the given…
Scott Arciszewski
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Kernel Scheduling for 1024 CPUs

Azul Systems has an appliance that supports thousands of cache coherent CPUs. I would love insight into what changes would need to occur to an operating system in order to schedule thousands of simultaneously running threads.
McGovernTheory
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How would you build a database filesystem (DBFS)?

A database file system is a file system that is a database instead of a hierarchy. Not too complex an idea initially but I thought I'd ask if anyone has thought about how they might do something like this? What are the issues that a simple plan is…
Dave
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Are there any small Unix or BSD distributions?

I was wondering if there are any small BSD or unix releases. The smallest Linux release I've seen that looked good is partedmagic (around 70MB). Free BSD needs like 4 CDs, maybe more.
Glas
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How much memory locked in a process

Using getrlimit(RLIMIT_MEMLOCK), one can get the allowed amount of locked memory a process can allocate (mlock() or mlockall()). But how to retrieve the currently locked memory amount ? For example, there's no information returned by…
Yann Droneaud
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What's the Solaris equivalent to the BSD's 'tail -n100'?

I've looked this up a thousand times, and I always forget it, so, here for eternity: Solaris has a bit of an awkward syntax for tail. How do I do the equivalent of BSD's tail -nN? What I want are the last N lines from tail's input.
kch
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Using regex to tell csplit where to split the file

I have a large text file with content set up like this: --- title: Lorim Ipsum Dolar --- Lorim ipsum content --- title: Excelvier whatever --- Lorim ipsum content goes here. I'm trying to split up this file into individual files using…
Philip Meissner
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'git grep' and word boundaries on Mac OS X and BSD

I run git grep "\" regularly on my linux development server, but I just discovered that I am not able to use \< and \> on Mac (Mac OS X 10.6.8) (not able to use = it does not find anything). Is the regular expressions syntax different in Mac?…
Yogeshwer Sharma
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