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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471 views

Using git over sshfs on OSX

Due to a new job, I'm switching from working on Ubuntu 14.04 to OSX Yosemite. I mainly work in R, and I was using RStudio and git to manage my code on a server (Debian). To this I mounted the server ...
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231 views

How to have tmux on startup for both OSX and Ubuntu (including Quake)

I recently updated my Ubuntu 14 system and the update has made it impossible to have tmux started up automatically. In fact the previous setting made it impossible to log into my Ubuntu account(!), ...
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36 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
267 views

How to turn on tab completion in zsh/prezto?

I have installed prezto and trying out zsh. However tab completion is not on by default. What is the best way to enable tab completion in prezto?
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2answers
255 views

How can I invoke vi instead of vim [duplicate]

I want to use vi for better pasting. When I use vi I get vim When I type /usr/bin/vi I still get vim This is on my Max OSX 10.10 Yosemite
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43 views

Importing Python files from inside folders

On Mac OS X, I can import a .py file named test inside the directory dir by running import dir.test However, on Debian (specifically Raspian) this does not work. What is the alternative?
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1answer
508 views

Cannot change bash shell in Mac OS X

I'm trying to update bash shell on my Mac OS Mavericks. $ brew install bash $ which -a bash /bin/bash /usr/local/bin/bash $ which bash /bin/bash $ chsh -s /usr/local/bin/bash $ which bash /bin/bash ...
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56 views

Including Directories in Locate on Mac OS X

Can anybody shed light on which directories OS X decides to put in the locate database and which it decides to omit? It's pretty clear that ~/Library is out - which others? And how do I modify this ...
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140 views

SSH Tunneling Through a Firewall to a Cluster

I work at a university but I often work remotely. There is a cluster computer at the university that I need to be able to interact with, but its behind a firewall. Let's call the firewall F and the ...
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2answers
112 views

.bash_history keeps truncating

My .bash_history keeps truncating even though I set: export HISTSIZE= export HISTFILESIZE= On my .bash_profile. Im not sure when it happens but it might happen when I logout or shut down my ...
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45 views

Unable to view Applications Directory Content in Terminal

Not sure what I'm missing here, but when I try to list the contents of the Applications directory from the Terminal it produces a directory with a couple .dmg files and none of the actual application ...
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3answers
2k views

Remove patterns from string using bash

I'm trying to remove some patterns from a file input string (parsing file line by line). Here is a sample string: 1: (10/17 12:49:31.175) - CONSTANT ID1 - CONSTANT ID2: RAW DATA OUT > [0x00,...
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51 views

Get path of currently marked file

Im running OS X and I'm wondering if there is a way to get the path of the currently marked file in Finder. Like, can UNIX determine what file i have clicked on? Reasons for this would be for ...
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1answer
60 views

How are files or chunks delimited on disk?

I'm trying to recover some lost files by grep-scanning a hard disk. (The OS is Darwin 11.4.2. The file system is HFS.) How can I determine where a file (or contiguous chunk thereof) begins and ends ...
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1answer
859 views

How to transfer data “offline” between osx and ubuntu?

I need to transfer around 50gb of data from my Ubuntu to my OSX. scp and samba are both too slow it seems - even with the Ethernet cable connected (14-15 hours!). I have physical access to both ...
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1answer
129 views

How can I tell why a process is waiting?

I'm trying to run a command on OSX Mavericks and it seems to be hanging. I found out that Control + T is a Unix command to show the status of a foreground job. Pressing it several times over the ...
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2answers
333 views

Limiting access to a website based on IP address when .htaccess is not allowed

I am trying to limit access to a website to a small set of IP addresses. I am a regular user on the Mac OSX web server. My first attempt at limited access was to create an .htaccess order deny,allow ...
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1answer
111 views

newsyslog for paths with empty spaces

How can I configure newsyslog to trim logs with paths containing empty spaces? I define my paths at /etc/newsyslog.d/frank.conf like this: "/Users/frank/Library/Application Support/Google/Drive/*....
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164 views

How to fix SSH on OSX?

I have been able to connect to OSX machine using ssh client successfully for hours, but then it stops working and I get connection refused. ps -ax | grep ssh 841 ttys004 0:00.00 grep ssh Using ...
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1answer
35 views

rsync from Mac ext hd to VPS works but not VPS to Mac

There are no errors with either rsync -a /Volumes/hd/dir_foo foo@foo.com:~/ or rsync -a foo@foo.com:~/dir_foo /Volumes/hd/dir_foo in the first instance the synced folder on remote system CentOs ...
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1answer
456 views

rsyncing from ext3 on mac: file has vanished

I am on Os X and I am rsyncing from a ext3 volume (that I read with osxfuse 2.6.2) to a HFS+ volume. The data I am backupping are ~ 500GB. Sometimes rsync gives the following message: file has ...
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1answer
68 views

How to create an alias for opening a directory on Mac

Trying to create an alias hello. After typing hello in Terminal, then vi opens hello_folder. Now, this code returns: $ hello -bash: hello: command not found 1 #!/bin/bash 2 cd ~/Documents/ ...
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2answers
628 views

Mac OS X LDAP query via dscl yields different results for same user with same datasource

Where is the NFSHomeDirectory attribute stored for a Mac user who authenticates via LDAP? It doesn't seem to be in the LDAP database on the backend so I assume Open Directory is involved. I have 2 ...
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1answer
65 views

OS X virtualization for software development

I am a OS X user and I work on multiple platforms for which I need multiple dependencies. I want to separate my different development dependency packages in virtual environments so they are all ...
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1answer
1k views

Hide a file extension using Terminal

I have about 40 files in my folder. I selected all the files and pressed command+I. Instead of opening one Get Info window, my Mac shows up 40 windows! Is there a terminal command to hide the file ...
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996 views

Mac OS X: Terminal Prompt Username

I'm using Mac OS Snow Leopard (v10.6.8). I've changed the account name under System Preferences > System > Accounts > Full Name. However, that does not change the username on the terminal ...
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249 views

OfflineIMAP tells me SQLite isn't installed, even though it is

Whenever I run OfflineIMAP v6.5.3.1 I get an error for every folder (i.e. tag and folder in Gmail) which tells me there was a problem and then right after it tells me: SQLite backend chosen, but no ...
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903 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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1answer
54 views

why the “open” command runs under the home directory?

Under Mac OSX (Mountain Lion), I have a shell script "a": #!/bin/bash open -a Terminal b which run another shell script "b" using Terminal: echo `pwd` Something interesting is that, no matter ...
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1answer
67 views

How can I get a regular gcc etc. under HomeBrew under Mac OSX Mountain Lion?

I have a Mac with command-line developer tools installed, including Apple's LLVM C compiler, present as /bin/gcc. How can I get a real gcc installed so that e.g. make will see the standard gcc ...
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1answer
201 views

How to install wine via brew?

I am trying to install wine via homebrew on Mac OS Mountain Lion 10.8.4. $ brew install wine Error: wine dependency jpeg not installed with: --universal How do I resolve this?
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1answer
712 views

Where would I find where an .htaccess file is located and being used on a Mac OS X Lion server that sets Basic Auth on an Apache server?

I've installed some software, namely, a continuous integration (CI) server (Jenkins) on a Mac Mini running Lion Server. The server, by default, runs from port 8080 on local host via the url: http://...
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1answer
155 views

ipfw on Mac OS X 10.8

I'm trying to setup local transparent proxy with ipfw and squid and ran into some problems. I have a single rule 00100 fwd 127.0.0.1,3128 log tcp from any to any dst-port 80 but it either gets into ...
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2answers
191 views

Keep the ssh session

I am using Macbook developing a client application. I want to access server logs, so I opened a shell terminal and established a ssh connection to the server and access the log file there by ...
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1answer
48 views

How to revert to the original config files in OS X?

How can I revert config files in OS X 10.8.2 to their original state? I want to discard any changes made to /etc/hosts, /etc/sshd_config, etc.
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2answers
2k views

Unix: find directory filenames listed in a text file and move to new directory

I'm a command line novice trying to figure out the appropriate command to execute the following within the Terminal in Mac OS X. Assuming I've placed all files in the same directory, I want to ...
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2answers
76 views

What permissions should I set if I'm the only user?

I'm the only user on a OS X machine and am wondering what the best practice is for setting permissions on my sensitive files. Specifically, are there reasons to prefer one of the following -rw------- ...
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1answer
690 views

Block Internet Connection through Terminal on OSX

Even though I don't have administrative privileges, can I block Internet connection on my Mac OS 10.8 machine, through the terminal? I want to do this because I am too lazy to disconnect ethernet ...
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1answer
2k views

How can I get my Mountain Lion Mac to have Apache serve up content on port 80?

There might be more than one problem here, but I got my Mac back from the shop after the hard drive was failing, and the new hard drive reproduced my home directory but not httpd.conf. Since I have ...
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1answer
221 views

Rename directory based on date of file in directory

I am looking for a smart way to bulk rename directories in my photo library based on the date the pictures were taken. My specific use case: Export the image library from iPhoto or Aperture on OS X ...
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2answers
796 views

My computer won't shut off normally

Every time I try to shut down my iMac it just stays on that loading circle forever. The only way I can get it to shut down is by holding down the power button. I checked the system logs (below) and I ...
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1answer
406 views

Rsync keeps writing

I just recently updated my macbook pro to Mountain Lion. I use rsync to make backups of certain directories on my macbook pro my timecapsule wireless router with build-in harddisk. rsync -avzm --...
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1answer
2k views

How to fix this mysql permission problem?

I'm trying like mad to get rails dbconsole to work (Rails 3.2.6, if that helps). The problem is that when I run the command, I get: gems/railties-3.2.6/lib/rails/commands/dbconsole.rb:81:in `exec': ...
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330 views

Re-install ssh-keygen on unix/mac

Something is wrong with the way my Mac generates ssh keys. This has been the second time where I've created a key with ssh-keygen -t rsa. When I paste the created id_rsa.pub to use in a connecting ...
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1answer
1k views

Append timestamp to top command output

All, I'm using top -l 0 -s 1 -pid XXX -stats rsize | awk 'NR%13==0; fflush(stdout)' > output.txt to store the rsize value of a process in a file. Currently the contents of output.txt look ...
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3answers
1k views

Dual booting on a Macbook Pro 7,1.

I'm looking to install Linux on my Macbook Pro in a Dual Boot config. I've previously asked this question in a different fashion here: Dual Boot Fedora 16 with OS X rEFIt. However, it didn't really ...
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2answers
985 views

How to meet required dependencies in order to install expect pecl extension on Mac OS X?

I am attempting to install the expect pecl extension. OS version = 10.7.3 PHP version 5.3.10 installed via macports expect version 5.45 installed via macports The command I am executing: ...
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2answers
35 views

How can I log how often a file is modified on OS X?

I would like to know which files in my system I access most often, as a gauge of how important they are. I know the OS records the last time the file was accessed. Is there someone way to log in a ...
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29 views

Pipe long running process to clipboard on mac

I have a seemingly long running process (the lg cli debugger) and when I run it it prints out a uri to access the spawned debugger. I'd like to pipe this to my clipboard (pbcopy on mac) so I don't ...
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26 views

Trying to create a bootable usb drive for kali linux

I was wondering how I create a bootable usb kali linux drive for mac. And when I create one, is the usb drive a temporary os, like every time you plug it in it switches to kali linux and when you ...