Using programs and commands that do not have a graphical user interface (GUI) but are rather controlled by typing text commands into a terminal program, or shell.

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Why is a command line change to ~/Library/Preferences/com.apple.LaunchServices.plist not effective immediately?

When the Info window of Finder is used to associate files of a particular type with an application: the preference is effective immediately. When Terminal is used to make a comparable addition ...
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1answer
16k views

How do I format a disk partition from the command line on OS X?

How do I format a disk partition from the command line on Mac OS X? In case someone wonders why: because for some people Disk Utility fails.
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1answer
331 views

How to pipe output of 'say' to another command

'say' has both -o and -n arguments for various ways to direct the output, but I don't see any way to simply pipe the output to another command (say, sox). Is this a limitation of say, or is there a ...
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2answers
3k views

How do you record audio from command line with osx?

I've tried ffmpeg but there is no /dev/dsp device.
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1answer
395 views

How to access /dev/mem in OSX?

How I can access /dev/mem (or /dev/kmem, /dev/pmap) equivalent device in OSX? As far as I know it was removed in some point. Can I create this node manually somehow or any other way of dumping the ...
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3answers
583 views

Is there a htop-on-linux like alternative for top / Activity Monitor on OS X?

I'm looking for a better alternative for top. Both top and Activity Monitor are highly limited with regards to features. In particular, I'm interested in the following features: Limit processes by ...
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2answers
4k views

How to change the creation (st_birthtime) date/time of a file in Lion?

touch(1) can only change modification and access times, but has no options for creation time. This does not work, at least not on Lion. So how do I change the creation time, also referred to as ...
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3answers
769 views

How can I initiate a modem connection from the command line?

I am looking for a way to initiate a PPP connection with my EVDO modem from the command line instead of having to go to System Preferences -> Network and hit "Connect".
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2answers
8k views

How to start OS X applications from the command line with optional arguments?

I am looking for an easy way to start different GUI OS X applications from the command line and with different parameters. If possible I would like to add them to the system PATH in order to call ...
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2answers
1k views

Understanding the 'staff' user group

It's known that all users are members of the 'staff' group. If you setup a standard user and create any file, a list of that file in the terminal with 'ls -la' shows the user group to be 'staff'. ...
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2answers
8k views

Why does Java SE 6 Web Start (javaws) not find the JRE with Apple's Java for OS X 2012-006 on Mountain Lion?

In brief The JRE is installed but javaws can not find the JRE. What can I do on the command line to re-enable the web plugin for Apple's Java 6 in Chrome or Safari? I want to avoid Java 7. (We're ...
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1answer
16k views

How do I remove a user via single user mode in 10.7?

I occasionally will setup a user's machine that has been in for repair beyond the simple re-install of the OS. For example: install a new hd, install the OS, create a user, install updates and then ...
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1answer
206 views

pbcopy exits code 1, no error message

I'm trying to use pbcopy and pbpaste to copy and paste to the clipboard from a shell. I read the man page to learn the syntax for these programs. However, no matter how I try to invoke pbcopy or ...
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1answer
861 views

Is there a OS X equivalent for iproute2?

I am searching a command line tool collection like iproute2 on Linux. Network Utility is OK, but I would like it on the command line.
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5answers
5k views

How do I get “wget” for Snow Leopard?

There's no wget command. How do I get it?
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3answers
5k views

Is there a command to install a dmg

I want to install a dmg file on a remote server. All I have is an ssh access. Since a DMG is a disk image, I tried to mount it, but mount does not seem to recognize its format. file says my dmg file ...
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3answers
13k views

Use curl to download images from website using wildcard?

Is there a way to use curl to download non-sequential images with a wildcard? I want to download all the panoramas I upload to my account at 360 Panorama to a local folder so I don't have to do this ...
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3answers
2k views

Installing command line GNU utils

I've recently started using MacBook Pro with OSX, after years of developing under Ubuntu. I often use GNU command line tools like make and watch. How do I install these on my Mac?
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6answers
12k views

How do I execute command line scripts?

In Windows, I can create .bat files. I double click it and all lines are interpreted as if I had entered it into the console. In OS X, what file or program do I have to use? If I want write a file ...
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2answers
473 views

Using grep on Mac-style text files

When I run grep on a text file, I get nonsense results. It seems as if the whole file is printed out but on one line overwriting itself. I read that on the Mac, text files use \r instead of the ...
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1answer
7k views

Is it possible to view passwords through Terminal?

Does anyone know how to view passwords in Terminal? Maybe by accessing the Keychain data or something? I want to be able to view passwords in Terminal with just a series of commands.
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1answer
3k views

Is there a command-line BitTorrent client preinstalled on OS X?

On a "bare" OS X 10.8 install, what is the easiest way to grab a largish torrent from the command line (MacTeX, 2.3 GB)? I can't use GUI-only clients, it's a headless system. If no such client is ...
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3answers
9k views

Netcat -e on Mac OS X

I'm a newbie macuser coming from Debian, and I'm a big command line user. One one my preferred one is netcat (aka nc on mac). I especially loved the -e option which enabled to create a process that ...
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1answer
935 views

How do I prevent the permissions denied message from being displayed when I do a find command?

I'm trying to run a find command, aka: find / -name "some_file" -print and my results are full of permission denied messages: find: /.DocumentRevisions-V100: Permission denied How do I prevent ...
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2answers
2k views

How can I add reminders via the command line?

Once in a while it may be useful to add some reminders to Reminders.app from the command line — especially because they are synced to iCloud. Is there any way to do so? A solution that does not rely ...
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4answers
9k views

Change Command Prompt - Variables are literal, and changes to .bashrc or .bash_profile not making a difference

Trying to change my command prompt in OS X 10.8 / Mountain Lion. Changes to ~/.bashrc and ~/.bash_profile do not make any difference. Like: export PS1="\W \$" It defaults to the host name ("\h\%"). ...
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4answers
4k views

Creating a virtual serial port

I'm trying to create a pair of virtual serial ports on my mac. This is fairly easy to do with many shareware programs on a PC. I figured there would be some uber-powerful shell command to do this in ...
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1answer
217 views

Command line utility to create screenshot

Is there some command line utility to create a screenshot of the my screen and store it as png? (Preferably one in the system, without need to install anything new)
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2answers
442 views

Can I extend Alfred with a command-line program to clean up the desktop?

I'd like to have something that I can run from Alfred or the command-line that can run "clean up desktop". What is a command-line program or apple script that will cleanup the desktop? Preferably ...
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1answer
409 views

Why does my Terminal command line screw up like this? (bash's fault?)

When I use the command line history ( CtrlR , CtrlP ) The command line screws up like this: The cursor is supposedly located at the end of the line ( just pressed CtrlE ) If I press enter, just ...
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5answers
3k views

Monitor a folder for changes, and run a command when a change is detected

Is there a simple way to automatically run a (Terminal) command every time a file is changed in a specific folder? This should be possible via the command line, or a system built-in application, no ...
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4answers
1k views

Temporary files listed by lsof don't exist

I like copying flash videos for offline viewing later. I used to do this by loading the video in the browser (Firefox or Google Chrome), then running this command to see where the flash file was being ...
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1answer
285 views

How do I set an icon for a directory via the CLI? [duplicate]

Possible Duplicate: Changing a file or folder icon using the Terminal This is a continuation of this thread from Super User. The question is how to set an icon on a directory. At first I ...
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3answers
953 views

How do I delete a locked, invisible file in the Trash?

On an external disk (that contains a clone), the /.Trashes/501/Users/myusername/Desktop folder contains (within some subfolders) a locked invisible file that I cannot delete. The whole folder starting ...
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2answers
144 views

I added this to my .bash_profile but I neglected to label it and forgot what it means exactly

I remember broadly what it does, but not specifically: if [ -f ~/.bashrc ]; then source ~/.bashrc fi What is the exact purpose for it again?
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2answers
3k views

How to install CPAN modules from the command line on OS X?

Simple question: How to install CPAN modules on OS-X like normal Linux/Unix way? I just want to type in cpan something like install Perl6::Say for example.
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2answers
2k views

How can I enable and/or disable OS X's power nap feature from within Terminal?

I can deal with it using some command-line commands such as defaults write … etc, but don’t know what the exact command and argument names to use?
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1answer
2k views

How can I add all users to Print Administrator group but not full administrator?

Gordon Davisson offered a solution to a "standalone user" in another question I'm facing the same issue in an office environment. Printer paused and System Administrator needs to be called to enter ...
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2answers
304 views

Is there a way to provide a sort order to an mdfind query?

In trying to get a list of all music files from a particular album using mdfind I see that the files aren't necessarily returned in any order. I'd prefer album/track order if possible, but can't find ...
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1answer
57 views

Is there a way to put switches at the end when using OS X command-line?

For example: rm long/path/to/some/dir -r instead of: rm -r long/path/to/some/dir Is it possible to make it work like that, as in GNU command line utils? TIA, Karol
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2answers
174 views

Changing display resolution on Retina machines while in Command Line Mode

I frequently prefer to boot into the command line mode (CMD + S on boot) instead of booting to the normal GUI-imposed version. I do most of my work in the terminal, so it's nice to save some time and ...
4
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1answer
53 views

Graphical man pages viewer in Terminal.app

There is a feature in terminal to view man-page of selected string in external window with ⌃⌘? shortcut. But it has a priority to display preinstalled man pages. So for example I've installed gnu ...
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3answers
596 views

Dia command line not working

I've got a problem with using Dia from the command line on OSX 10.7.4. I downloaded and installed the OS X dmg from http://dia-installer.de/download/macosx.html I've been using it to create graphics ...
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1answer
603 views

How do I find the current Mission Control space number from the command line?

Is there any way to determine the number of the currently active Mission Control space/desktop in Mac OS X Lion from the command line?
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4answers
2k views

Copy to network share using local disk cache in Mac OS X Lion

I'm using rsync in Mac OS X Lion to copy a backup directory from my local HD to a network mounted share (local LAN). My goal is to archive the local backup to the network drive, thereby freeing up ...
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3answers
661 views

How to stream radio from the command line?

There is an iMac in our lab at university, running Mac OS X 10.7 Lion. It is never used, so we have taken to using it to play music, as we can SSH to it, and it does not require any permissions to ...
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0answers
452 views

Is it possible to dock a detached Web Inspector in Safari 8? [closed]

I'm running OS X Yosemite. I detached the web inspector and cannot find a way to dock it again. The usual dock/detach button isn't there, and I couldn't find any help elsewhere on the internet. Does ...
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2answers
2k views

brew cask: howto uninstall an Application

I tried, while I am in /opt/homebrew-cask/Caskroom $ for i in *; do brew cask uninstall $i; done Error: appcleaner is not installed Error: avidemux is not installed Error: eclipse-ide is not ...
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0answers
76 views

Why is Terminal.app corrupting my tcsh history?

I've had an ongoing problem that appears to be specific to OS X and Terminal.app: periodically, I get garbage in my tcsh history that looks like this: ^[[1m^[[4mcomputername:~/Code/emacs-source ( ...
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1answer
274 views

How do I monitor the total physical and virtual memory usage of a process and all of its descendants?

From the command line, how would I get the total physical and virtual memory usage of a process and all of its descendants (not just 1st-level children)? This is useful when you want to monitor the ...