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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6
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4answers
15k views

How to download command line tools in xcode 4.5

I just installed xcode 4.5 and need to install the command line tools. The apple documentations says (with very little detail) that there is a download section in the preferences pane. I have yet to ...
6
votes
3answers
8k views

Command Line Tools fail to install OS X Lion 10.7.3 Xcode 4.3

I'm trying to install the command line tools to get gcc, make, and other goodies after a Lion upgrade. I went to Preferences → Downloads in Xcode and attempted to install the command line tools. At ...
6
votes
1answer
984 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 ...
6
votes
2answers
4k views

Child process exited with status 254 error when extracting a tar.xz file

I'm trying to extract a tar.xz file with tar in Mac OS X Lion. I'm using bsdtar 2.8.3 - libarchive 2.8.3. I'm able to use tar to extract anything else I've tried (.zip, .tar, .tar.gz, etc.), but when ...
6
votes
2answers
2k views

Mac renames itself automatically - host name is incorrect in terminal

I've got a handleful of macs (all with unique names) and on occasion it prompt a notice about saying another computer on the network as this name and adds a (2) or (3) to my mac. How can I set the ...
6
votes
3answers
1k 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".
6
votes
1answer
1k views

How can I update iTunes Match from the command line?

I use iTunes Match to access my iTunes library at work. I added some new music to my library (back at home) recently, but I forgot to run the "Update iTunes Match" command to ensure that the songs ...
6
votes
2answers
249 views

How to automatically watch for file changes and perform a custom action inside shell?

For example, I'd like to automatically run YUI Compressor whenever I edit a JavaScript source file to output a compressed version. Ideally the process does not run in the background but in a ...
6
votes
1answer
120 views

How do I use non-“legacy” launchctl commands to load and unload plists?

I have some plist files in ~/Library/LaunchAgents. I have been happily using launchctl load -w and launchctl unload -w to turn these on and off for years. However, I notice that now load and unload ...
6
votes
1answer
13k views

/usr/local doesn't exist in fresh install Yosemite

I am trying to install ssh-copy-id, and it wants to be placed in /usr/local/bin/ but when I do cd /usr/local/ it responds with -bash: cd: /usr/local/: No such file or directory Is this ...
6
votes
3answers
11k 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 ...
6
votes
4answers
3k views

How can I set Spotlight metadata to files?

I am looking for a command line utility (I need to use it in a script) that can set Spotlight metadata to files.
6
votes
2answers
273 views

Software recommendation: Command line network analyser that shows owning process

I'm looking for something that is a mix of tcpdump, lsof, and netstat. I want to be able to filter like tcpdump, but have an additional column showing the process ID. At the end I'd like to be able ...
6
votes
1answer
270 views

“Libraries” (a la Windows 7) on OS X?

There's one feature from Windows 7 that I sort of like (yeah, yeah, I know...) and would like to implement (differently) on OS X. It's what they call "Libraries". It allows you to have the contents ...
6
votes
2answers
2k views

Is it possible to download Apple's Command Line Tools for Xcode from the command line?

Background My job gives me temporary MacBook Pros for travel purposes. I get them with a fresh OS install before I leave, and when I return, they blank the hard drive. The trips usually require some ...
6
votes
1answer
420 views

How do I emulate Internet Sharing from the command line?

I'm trying to set up my Macbook Air to share an OpenVPN connection for use while I'm on the road and don't want my iOS traffic to go over the open Internet. Sadly, Mountain Lion's Internet Sharing ...
6
votes
1answer
330 views

Incorrect Terminal.app output for long lines with tabs

When I run the following command in Terminal.app: echo -e "a\tb\tc\td\te\tf\tg\tyo" I should get the following output (using a 40-column window so that lines don't wrap here, and replacing tabs ...
5
votes
5answers
7k views

How do I get “wget” for Snow Leopard?

There's no wget command. How do I get it?
5
votes
3answers
9k views

Use MacVim as standard Terminal?

I used to love the terminal.app for many reasons. I especially liked the way I could navigate to a file and edit using vim it all in one app, without having to leave the keyboard. But, since the ...
5
votes
1answer
1k views

-d option for split is illegal on OS X 10.9

I have bash script that works on Ubuntu but for OS X 10.9 i get the error for split command: split -b 1000000 -a 3 -d $F $F && rm $F || { echo "Error: 'split' command not installed" ; exit 1 ...
5
votes
3answers
5k views

Can grep highlight matching text without hiding file content?

I frequently use grep's context command line options (-A, -B, and -C), but occasionally I want to view the whole file with matching expressions highlighted. To accomplish this currently I simply ...
5
votes
2answers
619 views

grep: command not found

This is a very weird behavior. Lately, whenever I am trying to find a process on console with ps aux | grep foo, it is returning a grep: command not found. Ok, that could be something that I changed ...
5
votes
3answers
368 views

Detect single-user mode from the command line

Is there a way to detect single-user mode in OSX (Lion, specifically) from the command line? I've tried who -r, which returns 3 in either standard or single-user mode. I've also tried nvram ...
5
votes
5answers
14k views

How to add MySQL to $PATH variable to resolve “mysql: command not found”?

I installed MySQL on my Mac, and now I would like to add it to my $PATH variable. I want to be able to type mysql anywhere. I tried adding the following to my .profile file: export ...
5
votes
4answers
2k 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 ...
5
votes
2answers
18k 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.
5
votes
1answer
950 views

How can I open a file in its default application from the command line in OS X?

How can I open a file in its default application from the command line? For example if I have a file foo.doc, can I type command ./foo.doc into the CLI and have that file open in Word? Note: on my ...
5
votes
3answers
3k views

open new terminal tab in the same directory with the active tab

In GNOME Terminal of Ubuntu when you open a new tab the new shell will automatically start you in the current working directory of the active tab shell. E.g. if in the active tab shell I am on ...
5
votes
1answer
4k 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 ...
5
votes
1answer
9k views

Whats the equivalent of the unix tree command on OSX

Whats the equivalent of the unix tree command on OSX (10.8.5)
5
votes
1answer
6k views

How do I change back from MacPorts Python to system default version?

I used MacPorts to install a newer version of Python on my system (10.5.8 PPC), and then used the MacPorts select command to change the default invoked version of Python to the MP version. Now I want ...
5
votes
3answers
170 views

Can command-line commands be made insensitive to order of filenames and options?

I'm new to Mac usage. It seems that most commands trip over options given after the file names. In linux, which I've used for years, it doesn't matter. On Apple, it does. Is there some setting ...
5
votes
1answer
25k 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.
5
votes
2answers
124 views

Why does preview change the ctime of a pdf, and how can I disable it?

When I open a file in Preview, preview updates the ctime of the file. This seems to only happen once however, and as far as I can tell, nothing other than the ctime is changing. This is very ...
5
votes
2answers
7k views

Howto install 'MySQL Utilities' using brew or brew cask

I installed MySQL server and client using brew. I installed MySQL Workbench with brew cask. But I don't find MySQL Utilities (something new?). Howto install that using brew or brew cask? ...
5
votes
1answer
598 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 ...
5
votes
1answer
5k views

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 ...
5
votes
3answers
138 views

Use mdfind to identify all encrypted dmg?

Can someone suggest a clever way to identify all dmg that are encrypted? My only idea is rather complicated. use mdfind '(kMDItemFSName=*.dmg)' and then test the response from hdiutil imageinfo and ...
5
votes
3answers
1k views

Displaying calendar events as text, in the terminal

Using Yosemite, is there a way to display events from my calendar in the command line? I'm aware of the stock calendars apple supplies for things like holidays and such, /usr/share/calendar/ and the ...
5
votes
1answer
1k views

open image full screen with “open -a Preview”

Using osx 10.9.3 I would like to write a script that opens images full-screen with preview but I can't seem to find the command line options for the Preview application.
5
votes
2answers
5k 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?
5
votes
3answers
945 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 ...
5
votes
4answers
1k views

pbpaste, pbcopy using wrong pasteboard?

I'm converting a shell script which xclip and similar tools on Linux, to use pbpaste and pbcopy on Mac. The problem is the default pasteboard ('general' according to the man-page) for these tools is ...
5
votes
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 ...
5
votes
1answer
70 views

AppleScript : Set do script result as variable

I would like to get the result of this search and display the result in a notification or safari popup. " set result to do shell script "curl https://www.binlist.net/json/" & cc without altering ...
5
votes
1answer
396 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 ...
5
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
616 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