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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1answer
403 views

What is the relationship between `launchctl limit` and `ulimit`?

There is not any ulimit configuration in system startup files/ shell startup scripts. ulimit -a shows: -u: processes 1064 -n: file descriptors 256 launchctl ...
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votes
3answers
9k 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 ...
5
votes
1answer
625 views

How to isolate the most disk-active process(es) in OS X?

I have some process(es) performing a lot of drive access from time to time, however I've hitherto been unable to isolate which process or processes are performing the access. What shell command can I ...
5
votes
1answer
20k 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 ...
5
votes
1answer
65 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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1answer
375 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 ...
5
votes
1answer
8k views

No GDB in the new Command Line Tools (OS X Mountain Lion) for Xcode - September 2013?

I've recently formatted my Mac and when I reinstalled the command line tools, I installed the new Command Line Tools (OS X Mountain Lion) for Xcode - September 2013. I've just typed gdb in my ...
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3answers
18k views

How do I force a partition and format on a USB key in OS X Mountain Lion Disk Utility or from CLI diskutil?

I have a brand new Memorex TravelDrive 64GB USB disk which is being troublesome. It's formatted FAT16 on MBR, which is not so nice, and I'd like to put it on HFS+. I've tried to do this through ...
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2answers
2k views

How to mount a RAM disk on startup?

I'm trying to mount a RAM disk on startup with this: /Users/Aram/Development/Tools/ramdisk.sh diskutil erasevolume HFS+ "RamDisk" `hdiutil attach -nomount ram://800000` com.aram.ramdisk.plist ...
5
votes
1answer
6k views

Is there a way to minimize open windows from the command line in OS X Lion?

Just wondering if there is a way to retrieve open windows and minimize them from the command line in Lion? I have an AppleScript that does this, but it kind of slow, so wanted to know if there was ...
5
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1answer
780 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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1answer
2k views

How can I use RSVG with ImageMagick?

I'd like to use the RSVG for SVG processing in ImageMagick (the included library is fairly incomplete). RSVG is a supported delegate but needs to be installed separately. I've installed librsvg and ...
5
votes
1answer
249 views

Command line to disconnect or connect 802.1x authentication

I have been searching for a terminal command line to disconnect or connect 802.1x authentication, but not the network interface. I was searching some help pages and it showed command lines to export ...
5
votes
3answers
9k views

Is there any way to access the console logs on an iOS 8 device without installing Xcode?

The title says it all. Prior to iOS 8, one could use iPhone Configuration Utility, but that no longer works. Is there any other way to access these logs without installing the gargantuan XCode? Are ...
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2answers
475 views

How to use cd with shell variable containing spaces

I am trying to create an environment variable for a path that is long, has a space, and syntax. I tried the following: export temp=/Users/username/Dropbox (Personal) And added it to my .profile. ...
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2answers
8k views

Getting launchd to read program arguments correctly

I have a launchd script where the command I'm trying to run is erroring (apparently that's not a word, it is now), complaining of improper usage. The specific error I'm getting is the command's usage ...
4
votes
4answers
12k views

How to find all files that are larger than 1GB on the Mac HD?

It seems that either one of these commands can be used: sudo find / -size +1G sudo find / -type f -size +1G But when it gets to /Volumes, it actually look at all the back up files by Time Machine ...
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votes
2answers
91 views

How can i track progress of dd

I am using the following command to create a bootable SD Card sudo dd bs=4m if=en_windows_10_enterprise_version_1511_x64_dvd_7224901.iso of=/dev/disk2 Is there a way to track the progress?
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1answer
649 views

How can I “Open an app from an unidentified developer” without using the GUI?

Basically, I used the native Safari.app web browser to download a third party application and I want to run / open it from the comfort of my bash shell / Terminal.app CLI; despite the following error ...
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5answers
2k views

How to find the currently connected network service from the command line?

I would like to find out which of the available network services (e.g. Ethernet or Wi-Fi) is currently active. In this screenshot from the Network Preferences, you can see that Wi-Fi is currently ...
4
votes
3answers
21k 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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2answers
679 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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2answers
2k views

How to dump the content of keychain from the shell?

I'm testing the following command-line in the Terminal: sudo security dump-keychain -d login.keychain which I'd like to use to save all my passwords into a file. However when I run it, it keep ...
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3answers
1k views

Running .NET binary with mono

When I have abc.exe generated from C#/Mono source, I use 'mono abc.exe'. Is there a way to run abc.exe with 'abc.exe' not 'mono abc.exe'? I mean, when I run 'abc.exe', can I make 'mono abc.exe' ...
4
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1answer
485 views

Using python screws up the shell (and/or terminal?)!

The problem Simply opening and closing the Python sub-shell screws up my shell (or possibly the terminal?). It seems to remove the shell's ability to print any text I enter, including newlines after ...
4
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2answers
3k views

Update bash to version 4.0 on OSX

Is it possible to actually update bash to version 4.0 in OSX Yosemite? echo $BASH_VERSION 3.2.57(1)-release This article and this thread refer to the same question, but they install a new shell ...
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2answers
723 views

How to have locatedb created / updated automatically?

I ran locate blob.txt and I got: $ locate .bashrc WARNING: The locate database (/var/db/locate.database) does not exist. To create the database, run the following command: sudo launchctl load -w ...
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1answer
516 views

How to find out which terminal app (iTerm or Terminal) is running from within bash

I need to have different color schemes for each of the two terminal types I use. I can set it in the .bash_profile as mentioned here. But how can I tell it to differ depending whether its a iTerm2 or ...
4
votes
2answers
870 views

Pipe output of grep to a variable

I need to be able to write whether the test for a grep is either TRUE or FALSE to a variable so I can use it later For the following, if I run defaults read com.apple.Finder | grep ...
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votes
4answers
3k views

Can I list files ordered by date added to a folder from a command-line tool like ls?

I need to build a script that shows files in the same order as the default Downloads folder in the dock, ordered by Date Added, newest first. I can't seem to find the option in ls. Any other way to ...
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votes
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\%"). ...
4
votes
6answers
5k 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 ...
4
votes
1answer
280 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)
4
votes
2answers
1k views

How do I set the creation time of a file?

I have a script that converts a file to another format, and I want the resulting file to have the same timestamps as the original, including the creation time (as shown by ls -lU). I can use touch to ...
4
votes
6answers
13k views

How can I write a script to open multiple terminal tabs and execute code in them?

I want to be able to open the terminal application and have it either automatically run a script that opens several tabs and run an arbitrary set of commands in each. For example I would like one tab ...
4
votes
1answer
6k views

How to open files via Terminal

I want to open videos and pictures from Terminal. Is there any way to do this?
4
votes
4answers
7k views

How to open a new Terminal tab in current working directory?

I want to create and run a bash function that: cd into a project's directory Open a new tab in Terminal in the same directory Open my dev tools and start dev services Item #2 doesn't work as ...
4
votes
2answers
537 views

Mac OS X UNIX-oriented Tutorial

Is there any Mac OS X tutorial/book that covers the UNIX part of this operating system? Topics like: Managing daemons from the command-line Package management Install/Remove dmg's from the ...
4
votes
1answer
8k views

How to I display the current DNS servers from the command line under OS X?

I want to display the DNS serververs that are used by the current network setup on OS X, from the command line.
4
votes
1answer
2k views

How to enable Maven autocomplete on Mac OS X command-line?

When using Maven (mvn) on OS X Terminal, how can I get tab-completion for Maven goals, plugin names, etc? Things like this: mvn pa [TAB] -> mvn package mvn je [TAB][TAB] -> mvn jetty:run
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votes
2answers
756 views

How to drop a file onto a GUI app from command line?

I've got a tool to normalize WAV audio files, but it only works by dragging and dropping the file either onto the GUI or onto its dock's icon. As far as I know the app doesn't have any option to pass ...
4
votes
2answers
601 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 ...
4
votes
1answer
714 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 ...
4
votes
1answer
1k views

How can I kill or refresh Desktop Wallpaper with a Terminal command?

Is there a command for refreshing the Display Settings? Or, in specific, refreshing the Desktop Wallpaper?
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2answers
415 views

Make locator.updatedb run daily on Snow Leopard w/o hacking /System/Library?

On Snow Leopard, the locate database is updated once a week by a launchd job, /System/Library/LaunchDaemons/com.apple.locate.plist. I'd like to make the updater run daily, but AFAIK it's considered ...
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2answers
1k views

Shell variable PROMPT_COMMAND not working as intended?

I want my bash prompt to change depending on external conditions. Here is excerpt from the bash manual: PROMPT_COMMAND: If set, the value is executed as a command prior to issuing each primary ...
4
votes
1answer
710 views

>console does not work

I have enabled the login window so that the username and password must be entered to login to an account. However, when I switch out of my user and type >console into the username field, the screen ...
4
votes
1answer
314 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 ...
4
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1answer
2k views

Search through terminal history with up and down keys in OS X Lion

After I upgraded to OS X I am not able to use my ~/.inputrc bindings to search through the shell command history: # these allow you to start typing a command and # use the up/down arrow to auto ...