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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2
votes
1answer
135 views

UTF-8 not working over SSH

I have configured my terminal on OSX to show emoji properly. When I open up a terminal I can type and see emoji properly. My locale settings for OSX are shown below. When I start a tmux session it ...
2
votes
0answers
65 views

How to share my internet connection with a Raspberry Pi? [closed]

I connected my Raspberry Pi, that runs Arch Linux, to my Mac with an ethernet cable using this tutorial. I set the ip of the Raspberry Pi in the cmdline.txt file to 192.254.0.2. My Mac automatically ...
0
votes
1answer
232 views

How to setup Mac OS X Terminal on bash and iTerm2 on zsh

I attempted to setup bash shell by default on Mac OS X (Yosemite) Terminal app and zsh shell by default on iTerm2 app. However, it is either bash shell or zsh shell for both the apps. $ chsh -s ...
0
votes
0answers
37 views

customer display on headless server / POS system / Mac OSX

I have a web based POS system running (AMP), formerly on debian, now switched to OSX due to lacking linux printer drivers. The Mac mini is running headless, no keyboard, no mouse, no (normal) monitor. ...
1
vote
0answers
16 views

Anybody ever seen a file called .x64HG0B+VC on a Mac? [closed]

I've been looking at a file called .x64HG0B+VC and was wondering what it was...anybody have an answer?
0
votes
0answers
44 views

Scripting Assistance

I'm new to scripting and was hoping someone could point me in the right direction on figuring this out, any help would be appreciated. I need to create folders and symlinks in a second set of ...
1
vote
0answers
55 views

Upgrade OSX (Macbook Pro) when it has a Debian dualboot

On my Macbook Pro, I have a Debian/OSX dualboot, the partition looks like the following on OSX: bash-3.2$ diskutil list /dev/disk0 #: TYPE NAME SIZE ...
0
votes
1answer
90 views

how can I create two files with same name with different case in mac osx

I can't create two files with same name with different cases in a folder. as an example if file names are like below. test.java and Test.java. warning message appear that saying The name “Test” ...
0
votes
1answer
28 views

How can I get just the enum names from a Java file?

Enum files in java can get messy in structure, I'm trying to get Just the Enum names ... import com.mckesson.dex.model.activityLog.concreteFactory.ModifiedPropertyYesNoFactory; public enum ...
3
votes
0answers
163 views

tmux causing bold fonts in vim

I have installed tmux with vim, using the solarized colorscheme and airline plugin. All is good until I start tmux, where all the font turns bold and the airline status bar is looking weird. I have ...
0
votes
2answers
45 views

Is there a portable way to extract part of formatted text?

I have a program (specifically node --version) that outputs text in the form v<major>.<minor>.<patch>, where <major>, <minor> and <patch> are all numbers. I would ...
0
votes
0answers
29 views

kali's airmon-ng doesn't list out existing interfaces on mac

I am using Kali Linux on my mac inside of parallel desktop. When I type airmon-ng no interface gets listed. May be I am missing the right drivers for kali. How would I fix this?
3
votes
2answers
46 views

How to backup the data of my Linux system if I want to retrieve it in other operating systems?

I am a basic Linux user and would like to backup my data (my home directory to be precise) in an external hard drive (EHD), but would like to be able to retrieve this data in other operating systems ...
0
votes
1answer
62 views

How to disable or delete guest user account, from my MacBook Pro

In "Users and Groups", I see a "Guest User" listed there, as "Login only". However I do not want this user account. When I try to uncheck the "Allow guests to login this computer" for this user, I ...
2
votes
4answers
90 views

Copy files to new directory only if name of file is in an array

I'm not much of a zsh buff but I imagine this should be an easy layup for someone: I can bulk copy files from sourcedir to targetdir with the following: $ find sourcedir -type f -exec cp {} ...
2
votes
1answer
73 views

Unix ffmpeg Shell Script merge .aif and .mp4

I need a script that merges multiple files (.aif and .mp4) in the same folder with the same name to a new folder called [original_name]_new.mp4 Code: #!/usr/bin/env bash -e function combine(){ ...
1
vote
1answer
39 views

Reset Bash's memory used for auto-complete

After renaming a file to a similar name, I noticed TAB was still completing the old filename (if it matched the letters so far) and not showing the new one. No matter how many letters I typed, it ...
3
votes
2answers
30 views

How to set binary installed by package manager as default?

I installed a newer version of tcpdump via MacPorts and would like to make it the default binary. $ which -a tcpdump /usr/sbin/tcpdump /opt/local/sbin/tcpdump For now I set an alias, but that of ...
2
votes
2answers
110 views

Unix, Mac OS and Linux?

I am working to learn more about unix and linux for a project. I noticed that Unix is the parent system of Mac OS and also of linux. Are the two similar in scope of C based programming? And how ...
0
votes
3answers
58 views

Echo filtered numbers within a for loop and with an if statement

Desired output: all numbers greater than 5. One of few attempts: for i in {1..10}; do if ["$i" > 5]; then echo $i; fi; done But the output is: -bash: [1: command not found -bash: [2: command ...
0
votes
1answer
42 views

FreeBSD 9.3 and OSX color tags

I am using nas4Free 9.3.2 and FreeBSD 9.3-RELEASE-p22. I noticed after using cp, that my moved files no longer had the color coded labels I had applied in OSX. Share mounted in AFP. To test this, I ...
6
votes
0answers
111 views

Why does OS X `install` errors on redirected input when the same version of `install` on linux works fine?

I would like to use install command in order to create a new executable file with pre-populated content (e.g. with single pwd command in it). So I've extended this example which creates a new empty ...
0
votes
1answer
59 views

How to keep all log files?

I just lost important log file. Time Machine etc is not in use in that Mac. I would like to setup in my Mac (El Capitan) some unix thingie, which keeps all log files. Logs rotate, right? So if i ...
1
vote
1answer
611 views

Printing to Linux CUPS printer from Mac El Capitan - fills error_log and doesn't print

any ideas on this one? I'm trying to print to a CUPS printer running on Debian from a Mac running OSX 10.11 El Capitan. When I try to print, my /var/log/cups/error_log reads: D [12/Oct/2015:00:59:04 ...
0
votes
1answer
40 views

Ignore parts of script under some circumstances?

My script looks like this strenggen ( ) { something; } strengen 1 strengen 2 strengen 3 strengen 4 strengen 5 etc.. Which adds a few files to the directory called strengen?string=1, ...
1
vote
1answer
32 views

Terminal tab title not working correctly with MacPorts bash

I'm using OS X Yosemite 10.10.5. When using the default /bin/bash as your login shell, setting the following in .profile: PROMPT_COMMAND='echo -ne "\033]0;${PWD/$HOME/~}\007"' sets the Terminal tab ...
1
vote
0answers
21 views

Gtk primary key

Is there any way to setup Gtk applications under Linux to force use Super as primary modifier, instead of Control. I tried gtk-key-theme-name=Mac for both gtk2 and gtk3 without success, also I found ...
0
votes
0answers
91 views

Cannot login to SSH with public key

I'm using Yosemite 10.10.5 I think the problem is im missing a file called id_dsa - I have an id_rsaand and i've added the contents of id_rsa.pub to my servers ~/.ssh/authorized_key file. Here is ...
4
votes
1answer
87 views

Tmux and dim-ed colours in Terminal.app on MacOS

The problem On my Mac (10.11) Tmux does not show dim-ed colours properly, and this causes annoyance. In the following picture, the commit author's name is supposed to be represented in dim white. ...
2
votes
2answers
83 views

Get OSX codename from command line

Is there a way to get OSX codename (I.e. Yosemite, El Capitan etc) from command line? I'm not looking for Version information (e.g. sw_vers -productVersion ) which gives 10.10 etc Thanks!
1
vote
0answers
38 views

What are the major differences between the Darwin/BSD and GNU versions of Findutils?

OS X comes with its own versions of find, locate, and xargs. GNU versions of these utilities are also available as part of GNU Findutils. What are the major differences between the two versions? Is ...
2
votes
2answers
80 views

What Port is Squid Running on in OS X/BSD

I've recently starting playing around with the Squid caching server on my OS X based computer. I'm curious if there's a way to tell which port Squid is running on using netstat or other standard unix ...
12
votes
5answers
2k views

Do I need a Linux distro to learn the command line or would OS X be sufficient?

I am going to learn how to use the command line. Specifically, I will be using the book: "The Linux Command Line: A Complete Introduction". Now, do I have to use a Linux distro to walk through the ...
1
vote
4answers
100 views

How does the unix path get set when the computer first starts?

I use a mac. If I open a terminal and run echo $PATH I get the current "PATH" variable in my environment. If I add something to my path or to my other environment variables, it only persists for as ...
3
votes
2answers
133 views

Why does deleting directories generate error messages with find -exec?

Why is it that: find . -type d -name test -exec rm -r {} \; generates error messages: find: ./foo/test: No such file or directory find: ./bar/test: No such file or directory find: ./blech/test: No ...
7
votes
1answer
1k views

How do I increase the maximum swap space on Mac OS X? [closed]

On Mac OS X Yosemite 10.10.5, when I try to run a calculation that needs to allocate and use 128 GB of memory (it is a command line program written in C), the kernel kills my process with extreme ...
1
vote
0answers
64 views

How to permanently get rid of folder that keeps coming back on reboot

I ran a virus scan with Clamxav on my mac a couple days ago and it picked up on a PUA (Potentially undated app). It was located in /Application Support/Generic/E18VMjMwVtTrc. There was and executable ...
2
votes
1answer
54 views

How to find out if the script is running in Linux or OSX

I want to write a bash script to get some information of Switches through snmpbulkwalk. I would like to use the same script in Linux and OSX environments, so I want to know if there is a way to do a ...
1
vote
1answer
44 views

Why different UIs display different size of the same file?

Here's what Finder displays: QuickTime 7: Terminal: Why?
-1
votes
1answer
27 views

Booting a Linux environment CD on a Macbook Pro

Im trying to boot my Linux environment on my Macbook pro which doesn't have a CD reader. I got the files on the CD but still can't figure out a way to boot it upon start up. Is there any way to make ...
1
vote
0answers
26 views

Mac OSX, how to auto generate a select box of locally installed printers?

Short introduction into the current architecture of a POS program which I am currently developping: + Web based database server + locally installed Mac Mini (Yosemite, headless) with database mirror, ...
0
votes
1answer
107 views

How to use content address in sed on osx without error “expected context address”

I'm getting this error sed: 2: " /^[[:space:]]*pause$/, ...": expected context address with this line: /^[[:space:]]*pause$/,+1d which works on my debian Ubuntu system. The full file is ...
0
votes
1answer
367 views

Getting RE error: repetition-operator operand invalid on osx sed

I'm copy a sed script form Ubuntu debian to osx but getting RE error: repetition-operator operand invalid What is wrong? $ . sed_shorter_version_user_extensions_to_ruby.sh sed: 22: " ### DELETE ...
1
vote
2answers
60 views

How to change pager key bindings

I'd like to swap RETURN (scroll forward N lines, default one window) and SPACE (scroll forward N lines, default 1) in less to get a for me more natural way to page through man pages. I saw years ...
2
votes
0answers
216 views

Unable to delete Root CA (UNIX: operation not permitted)

I am trying to delete a root certificate authority from my Mac OS machine. When I try this from the 'Keychainaccess' program it asks for my password and then shows 'ecKeychainItemDelete: ...
2
votes
3answers
61 views

find and md5sum not yielding any output (find -o limit?)

I ran into a situation that I don't really understand. I have a bunch of backup files in a recursive structure of which I want to calculate the md5. When I add some additional file extensions the ...
5
votes
1answer
231 views

Show output on terminal and output to log file, without using tee

I want to run a command, then show the output on the screen as well as output it to a log file, currently I use tee -a, but the problem is tee doesn't preserve colours, and currently I have not been ...
1
vote
2answers
157 views

Apply Colors to Terminal Output to highlight URL & Others

I am looking for a way to apply colors to highlight URLs (http://....) and IP @ in the output of a terminal command. Example would be with a wget command for example where I would like to be able to ...
1
vote
2answers
624 views

How to split a directory of files into sub-directories

I have a directory full of files similar to these: 3260_661901_2008-2008.dat 3260_661901_2009-2009.dat 3260_661901_2010-2010.dat 3260_661901_2011-2011.dat 3260_661901_por-1998.dat ...
2
votes
3answers
38 views

Is there a way to colourize the output of a command without using bashrc/bash_profile?

I have made a program where I can read several logs from different programs, I want to colourize certain terms in the output , so I can find the more interesting parts. (I will not use grep or ...