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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276 views

What exactly files whose names' prefix is “AT.postflight.” are needed for?

I am not sure if this question should be asked here, since I am on an OS X, but since I am using bash, and I am asking about the meaning and the purposes of some files. I am trying to understand why ...
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1answer
28 views

OS X Directory Services

I have been reading from Advanced Programming in the UNIX environment (Stevenson and Rago), and I am currently reading about how user data is stored on various systems, including Linux, FreeBSD, and ...
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2answers
99 views

List all directories whose contents (files) have not been updated or accessed before a certain date?

Would like to easily located folders to archive/trash and an easy way to automate this would be to choose folders I haven't made any use of for years. Since folders themselves can have different ...
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3answers
95 views

Join pattern line and consecutive non-empty lines, separated by commas and enclosed in ()

I have a file that has click css_add_violation_false click css_add_claim_false and select css_driver1_birth_date_month birth_date_month select css_driver1_birth_date_day birth_date_day How ...
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1answer
145 views

Offlineimap unknown SSL protocol error

I am using offlineimap to fetch mail from several IMAP servers. This used to work but today offlineimap has been unable to fetch mail, producing the following errors: *** Processing account example ...
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0answers
49 views

cursor and combining diacritics in shell

I frequently deal with combining diacritics, especially the combining acute accent (U0301, or \xcc\x81). I have a keyboard set up to insert this character, and that works fine in the shell. $ echo а́ ...
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1answer
25 views

tstime and memory usage

So I am interested in measuring the high-water memory usage of a process. I would love to be able to use tstime but am having troubles figuring it out. Does it work in Unix? When I go to ...
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2answers
194 views

What's wrong with this grep?

> output2.txt cd # some directory i'm trying to search find views/shared -type f -name "*.js" -print0 | while IFS= read -r -d $'\0' line; do echo -n "${line%.js}" | tee -a ...
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2answers
160 views

Bash is not sourcing ~/.bash_profile on OSX

I just got this really weird problem. When I start bash, I get these two lines: -bash: fasd: kommandot finns inte -bash: brew: kommandot finns inte "kommandot finns inte" means command does not ...
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3answers
165 views

How to copy contents of a (large) vim file to the OSX system clipboard to paste in other apps?

I like to use vim to edit other (non-programming languages) stuff. So I paste the content into vim and make the changes. How can I copy all of the text back into the primary clipboard for pasting? ...
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0answers
22 views

On OSX, vi seems to return 1 unexpectedly despite no error

So, on stock Mac OSX Yosemite, if I run vi /tmp/foo and then type in some text, and finally do :Wq (a common typo I make) and then :wq. Everything will appear to be fine, but for some reason the exit ...
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1answer
112 views

Shuffle two parallel text files

I have two sentence-aligned parallel corpora (text files) with about 50 mil words. (from the Europarl corpus -> parallel translation of legal documents). I'd now like to shuffle the lines of the two ...
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0answers
26 views

Audio File Search, Count and Sort - OS X or Synology

There is a collection of audio files on a Synology NAS. Approximately 24,000 albums worth, that I need to analyse and report on. I will need to: Count total number of files Count types of files ...
3
votes
1answer
303 views

Round-tripping text through zip, unzip fails with 'extra bytes' error on OS X [duplicate]

I'm trying to zip streaming text, and unzip it later. A minimal example is: echo "Hey, could you zip this for me?" | zip hello.zip - ; unzip -p hello.zip This fails, with the following output: ...
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2answers
143 views

open(1) in rifle.conf for ranger on OS X

ranger ~/.config/ranger/rifle.conf For simplicity What one line – in the rifle configuration file – could cause open(1) to be used for all types of file? Background ...
3
votes
1answer
42 views

How to prevent swapping on Mac OS X?

I am inclined to run Tails through a virtual machine so that I could chain two VPNs. One running through the host Mac osx and one more running from inside the virtual machine that's running Tails. ...
2
votes
3answers
76 views

Get Name of Computer Cross-platform?

I'm creating a login message for my computer inside of /etc/bashrc and would like to greet them to the computer with the computer's name showing. Here's my code: # (system stuff here) echo "Welcome, ...
0
votes
1answer
66 views

X11Fowarding not working on Arch Linux ARM

I am trying to setup X11Forwarding between my Arch Linux ARM server and my OSX computer. I am accessing the server locally (always). /etc/ssh/ssh_config: X11Forwarding yes AddressFamily any ...
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0answers
11 views

How and when is keyboard data encoded from keyboard to application? [duplicate]

I hope this is not the wrong place to ask this, if it is, please point me in the right direction. As the title says, how and when is keyboard data encoded? I just wanna know in basic terms the ...
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2answers
72 views

Insert multi lines after match using Mac's sed command

I have 2 files:- a.xml <project> <modelVersion>4.0.0</modelVersion> <parent> ... </parent> </project> b.xml <project> ...
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votes
2answers
57 views

Find file, Edit text within files [closed]

I am trying to find a file and then edit the text within these files. This is what I have so far, but sadly I'm not that well versed. Help please? grep -rl "wrongtext" ~/Library/Calendars ...
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0answers
57 views

Ubuntu 14.04 VM resizing in VMWare fusion 7 whenever a terminal is opened?

On a computer at work, we have a virtual machine running that resizes the whole VMWare window whenever you launch a new CLI terminal window within the VM. Any ideas how to fix it? It's quite annoying. ...
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0answers
137 views

Using curl results in error: “Library not loaded: /usr/local/lib/libcurl.4.dylib …”

I had a few issues with the cURL library interfering with Homebrew. After hopefully removing the library (I no longer use it anyway), I started receiving errors whenever I used commands such as curl ...
4
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3answers
325 views

How to copy recursively and change file names to be unique

I have a large tree containing a lot of photos on an external drive that was formatted with one of the linux filesystem types (don't remember which one). It's mounted on my mac and I'm trying to copy ...
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0answers
155 views

Remote X11 applications have wrong keyboard mappings (local: OSX, remote: Linux)

I am connecting from a Mac (with OSX 10.6) to a Linux machine (with CentOS 6.6) by using the ssh command (ssh -X). On the Mac side, I am using the Terminal app. After logging into Linux, I can use ...
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2answers
102 views

How can I setup a separate bash environment with only GNU utilities on OS X?

For the last 5 years, I have used linux as my everyday OS for performing scientific computing. My work recently gave me a Mac that I will be the primary user for the next few months. I keep running ...
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1answer
46 views

How to send a NDP message?

I would like to send a NDP ( Neighbor Discovery Protocol ) message from my Mac on the network to discover which device is available or not. How can I do this ?
2
votes
1answer
218 views

rsync over SSH sometimes very slow--other times maxes out bandwidth

I have a bash script set up on computer A (Mac OS X) set to run every five minutes via a cronjob. This script checks for new files on remote computer B (Gentoo Linux) then rsyncs any new files to ...
1
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1answer
66 views

Bind tmux prefix to section symbol §

I usually use the backtick key as my prefix, but this keyboard has the section/stanza symbol § where the backtick usually (at least, for me in the UK) is. If I bind to this key, quoted or unquoted, ...
2
votes
1answer
61 views

using dd command for folder, but deleted items don't seem deleted [closed]

here is the image I used dd command to create a new floppy. First I tried it with a folder filled with naber.bin, test.bin, blabla.bin and boot.bin. And then i deleted all except boot.bin. ls -a ...
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1answer
220 views

Installed PDFInfo with Homebrew Cask but no command associated with “pdfinfo”

First, please excuse this very basic question. I'm sorry I have to ask it, but it's very difficult to find your way around the shell at the beginning. I installed pdfinfo with Homebrew Cask: brew ...
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0answers
58 views

How do I move files from a disk image using Terminal.

I downloaded an application (LaTeXiT) that installed itself as a disk image. I navigated to /Volumes and into the disk image, but when I try to move the contents to my /Applications folder, it returns ...
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0answers
122 views

Dual Booting - MAC OSX

I'm new to the whole Linux OS and want to use a distro called "Parrot Security" Problem is, I have a Mac Laptop to which I want to dual boot from. I've installed reFINd and tried to boot from a ...
1
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1answer
29 views

To recover OSX data in Debian

I have had taken backups by TimeMachine and now my Macbook Air 2013-mid finally died so I have to rescue files in Debian 8.1. However, it seems that no backups of so directories have been taken. I ...
0
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1answer
468 views

“dyld: Library not loaded: /usr/local/lib/libcurl.4.dylib” while executing curl with a unprivileged user

My MAC OS is Yosemite 10.10, which has an old version of curl. I have installed Xcode and Xcode command line tools. I run cURL with the "sudo" command as “sudo curl”: sudo curl Password: ...
0
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2answers
232 views

Extract numbers from a text file and place them in another file

I have a text file whose contents looks like this: ...
7
votes
4answers
2k views

How to grep-inverse-match and exclude “before” and “after” lines

Consider a text file with the following entries: aaa bbb ccc ddd eee fff ggg hhh iii Given a pattern (e.g. fff), I would like to grep the file above to get in the output: all_lines except ...
1
vote
1answer
43 views

how to use dd to backup second linux hard drive from os x?

I have a MacBook with Linux installed on the primary hard drive. On an external USB 3.0 drive, I have OS X installed. The external drive has plenty of space so I would like to boot up OS X and make ...
2
votes
2answers
280 views

Mac drive in use, understanding lsof

I am trying to repair permissions on my external HD. I cannot empty my trash when it is plugged in, because I get a bunch of "such file is in use". I read online that this might be resolved by ...
0
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0answers
19 views

OS X Java Security Edit Site List En Masse

I'm sure, like many other systems administrators like myself who use Mac, you've come across the dreaded Java Security site list and the need to add IP's for individual blades, servers and anything ...
1
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2answers
115 views

Making persistent USB with minimal OS on os x

I am looking to turn a 8Gb USB into a bootable drive with a minimal OS. All I want is an OS that will allow me to use vim, nothing else (no internet/any other services). I basically want to turn a USB ...
1
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0answers
41 views

osx - dd command behaving weirdly [duplicate]

I've been using dd for a couple of years now, most of the time successfully. I usually use it to dd Linux images to USB drives. My workflow doing so is as such: convert .iso image to a .img format ...
3
votes
0answers
102 views

Cocoa API implementation for Linux?

Is there any Wine-like project for running OS X apps on Linux? I mean an implementation of Cocoa API for standard Linux machine, as it is done with Wine.
11
votes
1answer
979 views

'ls' showing two identical files in a directory

So somehow the command ls seems to be showing me two identical files in a directory. I am certainly not doing something right here. Behold $ ls -Blah /System/Library/LaunchDaemons total 32 ...
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0answers
6 views

redirect help info to vim [duplicate]

I use this kind of commands to redirect help info to vim, for example: man ls | col -b | vim -R - but for some help info highlighted with color: celery -h there is a mess in it. How to make it ...
9
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1answer
203 views

OS X, bash: less works on open file descriptors, cat doesn't

In a bash script I'm working on (which has to run on Ubuntu and OS X), I need to redirect the output of hundreds of commands to a file. Rather than appending &>... to all of them, I simply do ...
3
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1answer
131 views

OS X FileVault 2 duress password

I've been attempting to add a custom script to run after the FileVault password is entered on login that will check whether it a 'special password' that will run a script in the background after ...
1
vote
1answer
100 views

Trying to find all files in certain directory that are not referenced in other files

I have this project that has a images folder with images in them and I'm pretty sure some of them are not used. So I'd like to list all images that are not referenced in any other file. I'm not very ...
0
votes
1answer
118 views

bash script failing to use ssh -i. Can't see directory

I am experiencing something strange. I am working on a script to remote install Splunk on servers via a script. In this script I ssh to my practice servers (5 amazon EC2 instances running Redhat). ...
3
votes
2answers
5k views

Installation Step Failed (installing the system) - Kali Linux [closed]

I am trying to install Kali Linux on a Virtual Machine using Virtual Box on an OS X host. The only issue is I get this error: Here are logs of my errors: hardware-summary partman syslog Also if ...