The BSD (Berkeley Software Distribution) is a UNIX operating system developed by University of California at Berkeley during the 70s and 80s.

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Is there a native alternative to the `watch` command; for Darwin/OS X

I have a script that I'm trying to port from Linux to Darwin/OS X. The Linux version currently depends on the watch command, which doesn't appear to be installed on Darwin/OS X by default. What's the ...
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bsd (osx) pf nat - change source port on outgoing UDP packets

I am running docker-machine on osx. docker-machine is running NAT so when my container send out a UDP packet on port 1812, NAT is translating it to some random port. I am playing around with pf nat ...
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25 views

Using specific grep flags from BSD general commands version on a Mac

So I have been using a command piped through curl (on GNU/Linux's grep utility) to generate a random password string for tightening security on some of my accounts. curl -s ...
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1answer
70 views

Why is Bash reporting “command not found” in some cases in the Terminal but not in others?

Often, but not always, when I start the Terminal on my computer and use pipe (|) in a command, pbpaste | wc as an example, bash gives -bash:  wc: command not found. (The double space is not a typo). ...
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65 views

Alternate location for GPT partition entry table

The GPT header (usually in LBA 1) has a PartitionEntryLBA field (see 5.3.2 GPT Header in the spec). There is language in various references (such as the wikipedia GPT entry) describing that field ...
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158 views

Netstat VS Netstat (Gnu/Linux VS BSD/Mac OS X)

Why are there different versions of netstat for Gnu/Linux and BSD/Mac OS X? I'm trying to get the latter to respond & behave more like the former.
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1answer
488 views

Recursively compress files in a directory and subdirectories using command line “zip” tool in Mac OS X and exclude .DS_Store files from ALL subfolders

I'm trying to create a ZIP file using the command line zip tool that comes with the Mac OS X Terminal. I want to recursively compress the contents of the current folder but excluding .DS_Store files. ...
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66 views

OSX: PF 'antifspoof' rule blocks ntalk packets…

I'm trying to get to work ntalk between my two macs inside my local network and found a problem with my pf firewall configuration. When I do $ talk user@macbookpro.local gettng: [No connection ...
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35 views

How to make a PF filter by packet size?

I am looking for a PF option that can filter UDP packets according to their packet sizes. iptables has an option --length, but I could not find an equivalent option for PF.
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2answers
26 views

Compare list of files from a database using find to locate missing files

I have a list of 2000 files from a database that looks like this: ./aa/0f/unique-string/IMG_0987.JPG ./ab/cf/unique-string/IMG_0987.JPG I want to compare that list to the actual directory contents ...
158
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3answers
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On OS X, why does `sudo ls` show hidden (dot) files?

With OS X Yosemite, using the following commands, I get the following: $ touch .a $ touch b $ /bin/ls b $ /bin/ls -A .a b $ sudo /bin/ls .a b It shows hidden files (that have names starting with ...
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1answer
258 views

Why can't I use my newly created user with chown?

So I am attempting to create a new user and group, and then change ownership of a directory to that new user/group. However, when I do, chown comes back with an "illegal user name" message. Here's a ...
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1answer
59 views

How can I make this SED command more portable?

I'm using the following sed command: cat version | sed -e 's/[0-9][0-9][0-9][0-9][0-9:M]*-[abp]/Ver\n/' Which normalizes like this: 4330M-p -> Ver<newline> This works fine with GNU ...
7
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1answer
166 views

Forcing *BSD to accept both IPv4 and IPv6 traffic on a single socket

I have tried a ton of stuff and keep coming up entirely empty handed. Allow me to frame the situation: I have a *BSD Jail setup in FreeNAS that runs a Plex Media Server (Plexpass). It has IPv6 ...
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20 views

BSD Packet Filter Redirect Internal traffic

I'm using OSX Yosemite with Packet Filter (BSD). Is there a way to redirect internal originating traffic (let's say from en1) to lo0 on a specific port for specific destinations? rdr from what I ...
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132 views

PF rule using return-rst on Mac OS X does not reply with TCP reset

I'm trying to add a simple PF rule: block return-rst out proto tcp from any to any port 33128 to filter all outgoing traffic to TCP port 33128, and I'd like it to respond with a reset. However, ...
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1answer
132 views

Interactive search of tmux sessions

When switching between tmux sessions with the interactive session menu (<prefix>-s), you can jump to a specific session by typing the session's numeric or alphabetical index, e.g. (0) + ...
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2answers
82 views

How does an OS run before drivers are installed?

I am looking into hardware compatibility of BSD vs Linux vs Windows. One comment that keeps reoccurring is "check your hardware before installing any variant of BSD". This is also a (smaller) issue ...
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1answer
107 views

PC shutdown unexpectedly without blue screen

My PC is shutting down after few hours(?) without BSD, but keyboard lights, power LED, fans are running (it's not sleep mood or hibernating). To switch them off I have to switch off the UPS, holding ...
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454 views

Port forwarding outgoing request with PF

I'm trying to redirect all outgoing traffic from my local machine on port 843, to go to my local service on port 1234. So, when I make a request to e.g. 1.2.3.4:843, I want it to connect to ...
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2answers
52 views

What is a better approach for ZFS?

I am making zpools on FreeBSD machine. While creating zpools I observe these two cases:- If I take raw disks and create zpool then I am able to form zpools and they are working perfectly. If I ...
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146 views

Can user-mode Linux be compiled and run on UNIX systems?

e.g. on NetBSD or Solaris? Or does it require exclusively Linux-specific system calls, virtual filesystems, etc.? Also, if it's currently limited to Linux, what changes would be required to port it ...
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2answers
114 views

Is there any Linux Distro based on BSD

I have hp probook 4530s. I have tried variety of OS on this but after using 10-15mins its screen flicks and the system hangs. Check the attached screenshot This screen flicks for all windows OSs, ...
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3answers
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trying to install FreeBSD from a pen drive. Failed with error 19

I am trying to install FreeBSD from a pen drive. But it returns an error on boot. cd9660 :/dev/iso9660 error :/dev/iso9660/FREEBSD_INSTALL failed with error 19 and appears mountroot> command ...
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1answer
443 views

What's are the technical differences between “chmod -w file” and “chflags uchg file”

BSD/MacOS question. chmod -w file will remove all the write permissions from file chflags uchg file will set the user-immutable bit (aka "Locked" bit) on file Beyond the obvious statement of ...
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1answer
170 views

How do you determine if you're on a linux or BSD system inside a script?

I've got a rather extensive selection of dotfiles thats been kept in a git repo for the longest time - I just maintain a separate branch of code for bsd-isms (for instance, on Linux, to get colored ls ...
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2answers
13k views

Why do we use cp to copy files and not dd? (in unix-derivatives)

For normal file copying in *nix, I've only ever seen people use cp (eg. cp /mnt/mydevice/myfile ~/myfile), but I eventually ran into dd, which appears to do the exact same thing (dd ...
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1answer
602 views

FreeBSD compatibility layer on Linux

I am aware of Linux mode on FreeBSD, where Linux binaries can seamlessly be executed in FreeBSD. From the FreeBSD handbook: In effect, there is a Linux kernel in the FreeBSD kernel. The various ...
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1answer
577 views

Backup bootable USB flash in Mac OS X

I have a bootable USB. It runs Linux. The size of USB pen is 8Gb, and linux partitions take less than 200Mb. $ diskutil list /dev/disk0 #: TYPE NAME SIZE ...
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3answers
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What is the BSD equivalent of Linux `netstat -lptun`?

In Linux, netstat -lptun gives a list of servers with the following details: protocol local and foreign address state PID and program name What is the command's equivalent in FreeBSD? Thanks.
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Sudo su vs su linux

If I enter in the password to su when prompted, it doesnt work while sudo su does. Also, when a command is executed using sudo (command), does sudo automatically execute it by root by default (since ...
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1answer
181 views

Install linux/bsd on compact flash using USB connector

How do I install linux/bsd on compact flash with usb compact flash adapter. The compact flash will boot on single board x86 computer as an IDE drive, but I'm doing the install on a regular computer ...
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“bad magic number” during fresh OpenBSD installation to a USB stick

Trying to install OpenBSD 5.2 onto disk sd0 (2GB USB storage connected to the computer). Burned install52.iso as image to a CD, loaded it into CD drive, and booted off it. After selecting [W]hole ...
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1answer
250 views

Can I Install Ghost BSD on an NTFS partition?

I have installed ubuntu 12.10 on my laptop. And decided to check out Ghost BSD. Two of my drives are formatted using NTFS so that Windows installation can access. So i have prepared one of drives ...
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2answers
4k views

UTF-8 locale portability (and ssh)

I spend a lot of my time sshed into various machines, all of which are different (some are embedded, some run Linux, some run BSD, &c.). On my own local machines, however, i use OS X, which of ...
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1answer
239 views

Any Unix with Windows XP like fonts?

I'd like to try a Linux- or BSD-based OS on my desktop. But all distros I've seen so far have fonts that feel unnatural after Windows XP. Could you recommend a distributive or a way to make them like ...
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1answer
2k views

update file in tar

for Linux tar command: tar uf test.tar test.txt but for *BSD bsdtar command option u = r = append,that is can't update file ,only can append file and also ,I try compiled libarchive , proved ...
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1answer
168 views

What value do I pass to `xrandr --output`?

I wish to add a new modeline using xrandr, however when I want to switch to the new modeline, I am asked to provide --output. The manual page doesn't explain where I can get my options from. So how ...
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1k views

Is there a command line calendar calculator?

Is there a command line calendar calculation which provides these features? Date (plus|minus) date interval calculation User specified input and output format
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1answer
279 views

ZFS & Deduplicating FLAC Data

I'm experimenting with using ZFS to deduplicate a large library of FLAC files. The purpose of this is twofold: Reduce storage utilization Reduce bandwidth needed to sync the library with cloud ...
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1answer
933 views

NetBSD as VMware workstation guest: `startx` hangs and maxes all CPUs utilization

I am using VMware workstation 8. I have attempted to install and run NetBSD 5.1.2 and 6.0. Installations all went OK and the system was usable until I install a window manager. After installed xfce4, ...
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1answer
285 views

Running telnet standalone - possible? [closed]

So, this is what I want to do: there is a local non-superuser and it can upload the file into /tmp. Using this account, I download a telnet server package equivalent to what is already installed. I ...
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2answers
2k views

FreeBSD password file

What would be FreeBSD password file equivalent of linux /etc/shadow and /etc/passwd? Is it the same? According to what I heard /etc/passwd exists in FreeBSD, but not sure in case of /etc/shadow.
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1answer
37 views

Where is CVS setting(config) located at in FreeBSD usually?

Where would the CVS pserver setting(config) be located at in FreeBSD usually? I am trying, trying to hunt for the location of the setting(config) file with no results...
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155 views

mod_python won't “./configure” on BSD

I'm trying to install mod_python 3.3.1 on Apache 2.4.3 and whenever I try to run ./configure (with apxs etc), instead of configuring correctly, it says that Apache 2.x is required and my current ...
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3k views

How to connect to Cisco W3550 with FreeBSD

There is a pfsense 2.0.1 (FreeBSD) and the command cu for access to the serial console, there is a Cisco W3550 attached but I can't get a connection. I try following Command: cu /dev/cuau0 -speed ...
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1answer
2k views

No interfaces defined in new Linux installs after installing BSD

A few months back, I attempted an install of PCBSD on my laptop (EDIT: Thinkpad T420). Before installation, my partitions consisted of /swap, /, and /home for an Arch Linux install, and one ...
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4answers
4k views

What is the reason for rmdir(1) and rm(1) to co-exist?

I use BSD and Linux every day, I have never had a circumstance which I must use rmdir(1) rather than rm(1). What's the purpose of rmdir's existence?
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4answers
2k views

Is it possible to run a Linux / BSD app on a mac?

I don't care if I have to add libraries or build whatever on my end. I'm just hoping since OS X has the foundations of Unix that there's some way to run a Linux or BSD client. Specifically, we need ...
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2answers
1k views

What BSD is the most friendly to a laptop? [closed]

Don't get me wrong here, I'm just probing opinions. I'd like to try BSD on my laptop, to learn more, to have fun with:) I'm currently choosing between NetBSD and OpenBSD, just a whim. What I'm ...