Questions about the command line and other Unix-like aspects of Mac OS X, including the Mach/BSD-based kernel and FreeBSD-based userland. You may want to consider using Ask Different instead.

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Shell expansion for arguments?

For example: mkdir ~/{1,2,3} Creates directories ~/1, ~/2, and ~/3. It equates to: mkdir ~/1 mkdir ~/2 mrdir ~/3 But, using the same syntax in the case of CMD < argument > : brew {install, ...
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0answers
19 views

Process Being Killed due to low swap

I'm running a python (2.7) script on mac osx yosemite. The script is fairly computationally intensive, certainly bumping up against my machine's RAM limitations. The computer crashes and restarts ...
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1answer
580 views

VPN Setup Errors

I'm trying to install a VPN on one of our servers for use within my campus so that we can play some games, but I appear to be getting errors when I try to connect, as shown below. Not quite sure about ...
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8answers
9k views

pgrep and pkill alternatives on mac os x?

Are there alternatives to pgrep and pkill commands on Mac OS X or should I just create aliases for them using other commands available for me?
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0answers
25 views

Catch/diagnose user process being killed - Inexplicably logged out automatically

Context: I'm using bash in Mac OSX Yosemite. Problem: I'm executing a (python) script that I expect to use alot of resources and take a few hours to run, redirecting stdout and stderr to a log file. ...
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0answers
21 views

Running Mac OS X under KVM/QEMU

Note to be removed in the future, so as to avoid confusion from answerers and mods edit: Forgot to add in the note, if anyone thinks this is the wrong stack-site to post this, please comment on why, ...
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0answers
21 views

Content of root's home directory in OSX

What is stored in root's home directory on OSX? What happens if you delete it on accident? Heres whats in my current root home folder. OSX:~ root# ls -lash total 8 0 drwxr-x--- 5 root wheel ...
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1answer
31 views

Sed a plist file gives a iilegal byte sequence

With a Unix Mac 10.9.5, French CA version I've read a lot of tips but if the error is gone, the plist is corrupted. the locale command gives: LANG="fr_CA" LC_COLLATE="fr_CA" LC_CTYPE="fr_CA.UTF-8" ...
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0answers
51 views

Mac terminal user privileges [closed]

While logged in as an admin on my Mac terminal, I reset the user privileges in the terminal with export ("\U \$") or something similar, I don't remember correctly. Anyhow, I could cd back to the ...
2
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1answer
20 views

macos - local port redirection using pfctl and syntax errors

I am running MacOS(really BSD), and I want to redirect certain traffic over an ssh tunnel using a a local forward. Seems easy enough, but I am repeatedly blocked by the ambiguous "/etc/pf.conf:29: ...
2
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0answers
53 views

Where does BPF packet capture read its data from?

I am interested in the low-level interfacing with network packets. From what I read, tools like tcpdump and libpcap use the BPF packet filter device /dev/bpf* to read link-layer network packets (on ...
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0answers
23 views

To plot 7x10 pictures for review in video

Assume you have 77777 pictures. You want to review them and their differences: have 7x10 pictures without margins to have an image viewer where the minimum browse time can be less than 1.0 s such ...
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1answer
28 views

Transfer executable file from Linux to mac

I have a file that is sitting on my server, this file is an executable file on the server. When I just use SCP to copy it down to my desktop which is a mac i get bash - ./fig up cannot execute binary ...
1
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2answers
735 views

Linux guest VM on mac host - Keyboard

I use a Mac as a development box, but am slowly transitioning to Linux. So I am spending the majority of my time in the Linux guest VM while working. But I still spend a fair amount of time in Mac ...
1
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1answer
34 views

mv to file with

I ran the following mv command, apparently by mistake using backslashes by mistake instead of slashes. mv 2015-02-02_flyer_ppces.pdf ..\PPCES2015\2015-02-02_flyer_ppces.pdf The output is empty. ...
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3answers
54 views

Is swapping enabled by default on common operating systems?

As a result of this question, I was a bit confused. After some research I found that swapping is enabled by default on Mac OS X. Swapping was furthermore introduced in Windows 3.0, so I believe it is ...
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3answers
2k views

How can I get the tac command on OS X?

I like to use tac to reverse the output of cat. However, it's not available in the Mavericks terminal. I tried to find it on MacPorts and again it's not available. Can anyone please show me how to get ...
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0answers
18 views

OS X USB installer utilities, cannot ssh any host

I booted my mac from a OS X USB key installer. I cannot boot it from the internal HD because OS is damaged. I want to copy some files from my Mac to another computer with scp. The problem is that ...
2
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1answer
1k views

Transferring Files SSH SCP Error Message: 'Stdin: is not a tty'

I am using a Macbook SSH terminal and generated RSA key pairs and uploaded remote id_rsa.pub with approved permissions. I can connect with remote Apache web server. I can create, open, move, modify ...
2
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2answers
41 views

SED on Mac OS X

I'm using a MacBook Pro and I want to find and replace a given word with another with sed command, but it makes no changes. What is the problem? sed 's/\<cat\>/dog/g' tt.txt
0
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2answers
133 views

Shell script for ssh into a Unix/Linux server from MacOS X 10.10

I am attempting to ssh into a server by using a bash script from MacOSX. #!/bin/bash spawn ssh username@gatewayserver expect "password" send "Mypassword\r" interact spawn ssh ...
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1answer
2k views

Sound volume control does not work in Ubuntu

My sound volume control does not work when I'm logged in with my regular user, though the sound works correctly. What's weirder is that the sound control works when I'm logged in as guest. With my ...
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0answers
29 views

OS X: Apply inheritable ACL permissions to pre-existing subfolders and files

I have a folder with numerous ACL permissions set. Most of these include file_inherit and directory_inherit permissions and therefore should be, and are, automatically propagated to any new ...
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0answers
22 views

Non-deterministic errors when using nested sshfs

The OSX implementation of sshfs doesn't like to connect to my Android phone running SSHDroid, so I'm attempting to gain access by mounting an ubuntu VM via sshfs which in turn has a mountpoint to the ...
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0answers
42 views

Cannot share folders betwen Mac OS X based VMWare 7.1.1 and Guest Fedora 21 system

I would like to share my Mac OSX 'Downloads' folder. I set this up as a shared folder in vmware settings. Currently, although I made a folder at mnt/hgfs/Downloads, it does not have the contents of ...
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0answers
25 views

Sharing folders between VMWare 7.1.1 and Mac OS X using open-vm-tools

I didn't have any luck sharing my OS X 'Downloads' folder with a Fedora guest Linux OS using the VMWare tools (see my earlier question) . I came across this solution (with 8 up-votes) for Ubuntu that ...
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1answer
23 views

Multi line substitution duplicating across lines in OSX

I'm a little rusty in my sed and haven't used it much since moving to a Mac but I am aware there seems to be a difference with what sed is used on a Mac per Ubuntu after a few searches. What I am ...
4
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1answer
442 views

Sending raw video stream over network to an encoder

I'm trying to build a setup using OS X machines for streaming live video. Currently I use Flash Media Live Encoder on the same machine that is handling the video input unfortunately because FMLE uses ...
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0answers
8 views

changing partition on a dual boot

I attempted to change the partition table in my dual boot (mint/osx). OSX occupies too much space and I wanted to reallocate freed up space into mint's \home. In gpartition it seems as though I cannot ...
3
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2answers
77 views

How can I test if my /tmp “works”?

I had to delete some files and whatever, long story, I ran sudo rm -rf /tmp/. Now, on mac (might be universal, I'm not sure) it is a symlink to /private/tmp/. But my /tmp/ folder has a thumbnail ...
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0answers
79 views

Dual Booting Macbook pro mid-2009 with Ubuntu and OS X Yosemite

Machine - Macbook Pro 15" Mid-2009 Hi, I am trying to triple boot my system with: 1. OS X Yosemite. 2. Ubuntu 14.04 LTS 3. Windows 8.1 For now I am trying to install linux first and then I plan to ...
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2answers
8k views

Global bash_profile

I realize there are /etc/profile and /etc/bashrc files for setting global environment variables and maybe I'm just misunderstanding their purposes, but... Is there a global bash_profile file? I'm ...
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1answer
784 views

Confused about how to convert XML to CSV using xmlstarlet on OS X?

I asked a question earlier and it was closed as being a duplicate: How to parse XML to CSV with a shell script?. The answer in the duplicate that was linked suggested using a tool called XMLStarlet, ...
0
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1answer
57 views

Increasing `ulimit -u` settings temporarily in OSX Yosemite

I'm trying to temporarily (without restarting the machine, just for test that starts a JVM) increase the number of processes to 2048 in OSX Yosemite but I'm unable to do so. First, I tried calling ...
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0answers
39 views

How to create multi-bootable OS from USB drive in Mac OS X

While Googling and tried with some instruction from many website introduction including Youtube and also been get through this article http://apple.stackexchange.com/q/130221/116741 but still can't do ...
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2answers
47 views

Maintaining the Current Style of the Command Prompt After Using 'su?'

When I use the su command in OS X's Terminal — say, to quickly switch to an administrator account to mount a drive using diskutil — the style of the command prompt changes. ...
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0answers
50 views

How to convert the qemu parameters for an osx guest for libvirtd

I managed to have an osx guest running in qemu with the following commands: // create the virtual image $ qemu-img create -f qcow2 mac_hdd.img 35G // .. install osx ... // start the guest $ ...
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1answer
36 views

Error with sed on MAC OS X invalid command u

Im french sorry in advance for my bad english... So i have an error on MAC OS X when im using sed sed -i '' '/user_pref("mail.identity.id1.reply_on_top", 1);/ a\ ...
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0answers
35 views

How do I start dnsmasq?

I have installed dnsmasq but I can't start it: $ dnsmasq dnsmasq: failed to create listening socket for 10.0.1.57: Permission denied $ sudo dnsmasq dnsmasq: failed to create listening socket for ...
3
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1answer
53 views

Edit a file via a script yet maintain the osx tags

On OSX you can have tags which allows you to identify different categories of files. Here are two text files with different tags when viewed in Finder: I have a large number of these files and have ...
0
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1answer
28 views

Mounting smb shares on OS X accessible with Microsoft account

I have a Windows machine which shares a particular directory and only an owner of this directory is able to access it over the network. Owner account is linked to Microsoft account. I am trying to ...
0
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1answer
308 views

Problems booting Kali Linux 1.0.9a 64 bit on Macbook Pro

I have a mid 2009 Macbook Pro that I am trying to dual boot OS X and Kali Linux on. I replaced my optic drive with my old HDD and replaced my HDD with an SSD. OS X and my apps are running off of the ...
12
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4answers
5k views

If I connect a physical device, how can I ever know which device file belongs to it?

Say I plug in several USB drives which don't get automatically mounted. How can I find out which device file belongs to which physical device, so I can mount it for example? I'm running Mac OS X but ...
1
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2answers
50 views

How do I find folders containing no recently modified files?

I have a directory that gets a lot of data dumped into it, and I want to find all directories whose contents haven't been modified recently (e.g., in the last 5 days). I'm trying to compose a call to ...
1
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2answers
2k views

How to install Broadcom BCM4360 on debian on Macbook pro

I'm trying to install the wireless drivers because my macbook pro does not have a ethernet port, then I mount the 3 debian isos like local repositories to install the almost all of dependeces. So, ...
2
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1answer
34 views

What's the easiest way to detect what signals are being sent to a process?

I'm trying to debug an issue with my shell (specifically, fish) sending signals to my background processes. I'd like to be able to recognize what signals a process is receiving. Ideally, I'd like ...
0
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1answer
160 views

Linux Mint freezes while downloading eclipse

I installed linux mint on parallels on my mac computer. It seemed to work fine and then, while downloading eclipse from Software Manager the entire system froze when it got to 40%. I've tried ...
12
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3answers
457 views

No colored output in less for the ls command

If I run ls I get colored output which I find pretty handy for quickly getting a glance of the kind of file. When I try to pipe it to less even with the -r and -R flags the coloring always get lost. I ...
2
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1answer
41 views

Replacing by tab character in Sed in Osx

I am working in Mac OS X,I have tried several commands in sed to replace by a tab character followed by a file name. for f in *.txt; do sed -i '' -e "s/$/\t$f/g" $f; done for f in *.txt; do sed -i ...
0
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1answer
83 views

Why convert .GIF to .MP4 file using by ffmpeg on Mac OSX got .MPEG4?

ffmpeg -i original.gif -r 10 outfile.mp4 According to command above, I've got outfile.mp4 but when clicked to see the information of file, i see it's actually a .MPEG4 file and the icon of file is ...