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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80
votes
7answers
54k views

What is the difference between iTerm2 and Terminal?

I keep hearing that iTerm2 is much better than Terminal. I downloaded iTerm2 today and played around with it, but I couldn't see what is so much better about iTerm2. iTerm2 seemed just like Terminal. ...
0
votes
3answers
149 views

Command-line tool to check if current user has the desktop?

Is there a way, via the command line, to check if the current user has the desktop? That is, if I run a shell script in a window, I want to be able to tell (in the script) if the user has switched to ...
0
votes
1answer
65 views

After Using LP Printer Utility “unable to communicate”

I tried using lp to print to our HPLazerJet P1102w from the command line. Items were added to the queue, as returned by lpq: macbookpro1:~ mikekilmer$ lpq HP_LaserJet_Professional_P_1102w is ready ...
4
votes
2answers
3k 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?
3
votes
1answer
780 views

How to execute a Parallels Windows application with command line parameters from Mac?

I am trying to call Beyond Compare Windows app to perform a file compre directly from Mac but I am block with command line argument passing. You can call Windows applications from the OS X command ...
2
votes
2answers
385 views

Troubleshooting “Unexpected argument” error when running defaults write

Trying to change the default screenshot directory to a specific folder in my google drive, but when I try the following command defaults write com.apple.screencapture location ‘~/Users/tommy\Google ...
2
votes
0answers
50 views

How to fix “You are not allowed to use ”Application“”

How do I fix this message, I am Admin, Mobile. Even if i login to a root account this message still appears. I have iTerm so if any commands need to be inputted to fix this problem I can still do ...
8
votes
3answers
3k views

Are the OSX Mavericks tags visible from the command line?

For example, suppose I have a directory structure such as /Users /tlehman /Math algebraic_varieties.tex [tagged: Math, Documentation] projective_geometry.pdf ...
2
votes
1answer
469 views

GCC : Command not found

I'm very new to Mac and right now my operating system is 10.10 Yosemite. I installed XCode and Xcode CLT, gcc came along with it as well. I was asked to change the default compiler to gcc. I went ...
5
votes
1answer
288 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 ...
0
votes
1answer
44 views

When is a folder not a folder?

I have a "folder" (as it appears from Finder), but I can't cd into it from the terminal. if I ls -la this is what it looks like. -rw-r--r--@ 1 christopher admin 1317440 Oct 17 22:23 Tomcat ...
9
votes
3answers
5k views

How do I change the time format used by ls command line on osx?

I want to make ls display time in ISO format (military format). How can I change this behavior? On Linux I knew that I could force ls to display time in long format by usin --full-time but this ...
2
votes
2answers
1k 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
1
vote
2answers
2k views

Display dialog from command line (like xmessage does)

Background I'd like to be able to display a notification window in OS X from within a script. The script will be running in background, so the notification should not go to the terminal but instead ...
1
vote
1answer
296 views

How do I open a URL with a custom scheme in Yosemite with cron and open?

I had a cron job that ran every morning at 10:30 to call into our daily status meeting on Go2Meeting. After I upgraded to Yosemite it stopped working, and I figured out that it was because open -g ...
3
votes
3answers
30k views

How Do I Use 'cp' to Overwrite Files?

Using a shell script or Terminal, how do I overwrite files that may or may not be present. I looked at man page for cp, it said use the -f argument to force overwrite. But, it does nothing. $ cp -f ...
29
votes
4answers
18k views

MacPorts vs. Fink vs. Homebrew

I always used MacPorts to install and maintain my GCC compilers (4.4, 4.5, 4.6, 4.7, ...) and gnuplot. Now I've heard about Fink and Homebrew. I think these two utilities are gaining ground in the Mac ...
1
vote
0answers
74 views

Aggressize standard stream buffering in latest Command Line Tools (6.1)

I just upgraded my "Command Line Tools" via App Store.app's update process to Version 6.1. It seemed to install just fine, but a lot of commonly used command line tools now have much more aggressive ...
2
votes
1answer
251 views

What is the relationship between Xcode and Xcode command line tools

When I install Xcode from App Store, I can compile programs in Xcode as well as command line too. Several command line utilities like clang, make and git all become available when Xcode.app is ...
1
vote
1answer
341 views

xemacs: Bad CPU type in executable

OK. So I worked around this error: /sw/bin/xemacs: Bad CPU type in executable. but I don't understand why what I did worked and am curious. All I did was replace /sw with what should have been an ...
1
vote
0answers
79 views

How to set positioning/filling of desktop background image with AppleScript

How can I set the positioning/filling of the desktop background image from the command line with one of the available options listed in the Desktop & Screen Saver preferences: Crop, SizeToFit, ...
3
votes
1answer
2k views

How to repair Homebrew permissions after installing as root?

I run brew as root, now it's defunct. No updates anymore. How to fix? $ brew update && brew upgrade error: Unable to append to .git/logs/HEAD: Permission denied error: Unable to append to ...
28
votes
6answers
71k views

How do I start TextEditor from the command line?

I work a lot at the command line in a Terminal and would like to start a text editor on a certain file. I'm from Linux Land and normally use kwrite or gedit from a bash shell. Trying to find the Mac ...
1
vote
1answer
1k views

How can I update my version of `unzip` to version 6.00 or higher?

Its a common problem that, when unzipping (read: 'open by double-click'), some .zip files result in a similar sized .cpgz file. But you expected an unzipped file or folder instead. The default unzip ...
0
votes
1answer
42 views

Change header of all text files in directory in commandline

I have tons of *.csv measurement files with following header: Start time: Thu Oct 09 15:46:16 CST 2014 Trend type: Average Wavelength over [259.09, 259.09] Trend offset: None ...
0
votes
0answers
44 views

Using spell checker on plain text files from the command line / in scripts

I see that libhunspell-x.y.z.dylib is installed on my mac (macos 10.9.5) but I did not find any way to invoke the spell checker from the command line, as in % spell file.txt Indeed, man -k spell ...
1
vote
0answers
28 views

Install CA from Command Line?

I run a small PKI at my house. There's not much too it - a CA, a few servers and a client certificate on occasion. I'm looking for a way to install my CA on my iOS devices from the command line. ...
3
votes
2answers
197 views

See live report of process's status

Under Linux, I can use top to see a live report of what processes are running. An important field I use is the Process Status field, which shows whether a process is running, a zombie, sleeping, etc. ...
2
votes
1answer
6k views

How to list bluetooth devices from command line

I have to list all available bluetooth devices from command line. I tried to google it, but got only results like "how to turn on bluetooth from terminal". Simply: bluetooth scan Thanks for help in ...
0
votes
0answers
143 views

Disable Safari plug-in management using the command line

Safari 6.1 introduces a feature called "plug-in management". In our organization, I'd like to disable this feature, or set all plug-ins to Always Allow for all websites. I need to do this using the ...
3
votes
1answer
186 views

Is there a command line utility to display a string or an image in the status bar in Mavericks?

Basically I want to issue a command in a bash script or an Apple Script and see some string (or icon) in the status bar aka "where the clock is". Something similar to osascript but for the status ...
2
votes
2answers
3k views

Is there a free command line program for converting PDF files to SVG?

Once upon a time I used Corel Draw to edit vector graphics. Now I'm looking at using Sketch. I previously converted all my old CDR files to PDF but Sketch doesn't seem to like to open PDFs containing ...
6
votes
6answers
15k views

How to fix curl: (60) SSL certificate: Invalid certificate chain when using sudo

So since the Mavericks upgrade curl has more issues with certificates. When trying to curl a file from my web server with it's self-signed certificate it was getting the error "SSL Certificate: ...
1
vote
1answer
45 views

From the command line, how do I tell if a particular VPN connection is up?

Suppose that I have multiple VPN connections configured in System Preferences/Network. How do I tell if a particular one (identified by the service name in System Preferences/Network) is up, on the ...
2
votes
4answers
29k views

How to send text with telnet in Terminal?

I would like to send some text to a port on my machine using telnet in the Mac OS X Terminal. I start telnet using: telnet localhost 8080 Then I type some text. Is that text send automatically or ...
1
vote
1answer
374 views

Disable line wrapping and horizontal scrolling for output in iTerm

I want to disable the interactive line wrapping that iterm does in my terminal application. I can run $ python -c 'print "\x1b[?7l"' to disable line wrapping on output, so long lines like $ ...
2
votes
2answers
2k views

Opening new Terminal.app window/tab with a certain profile from command-line or AppleScript?

When I login to my Mac, I want to automatically open a new Terminal.app window with a certain profile, say Monitor, that has a startup command and several appearance settings. I thought it would be ...
2
votes
0answers
383 views

Is it possible to launch and use Itunes with the command line on windows?

Is it possible to use iTunes with the command line on Windows? I want to pass actions to the program like to play a playlist. Is it possible to use any iTunes functionalities in the command line? ...
3
votes
1answer
934 views

Command Line: create a link to folder and access files in this folder

I want to do this thing: Create a link to a folder. Put this link in home (~) directory Access files in linked folder from home directory (~/LinkToFolder/file) What is the best way to it? Main ...
7
votes
1answer
2k views

Install shuf on OS X?

Ubuntu Linux has a great tool called shuf, which works like head except that it gives you ten random lines. I couldn't find it on Homebrew. What is the simplest way of installing it on OS X?
1
vote
1answer
74 views

How to get the domain name on the command line

I know this is a simple question, but I can't recall a method of doing it. I wrote a service using automator to copy the public URL of a file in my Sites folder. I wrote this script: sed -e ...
0
votes
1answer
123 views

broke my python easy_install how to fix?

Any idea how to fix: -bash: /usr/bin/easy_install: No such file or directory I kind of deleted it by accident before I realized that being behind a proxy was my issue not easy_install
2
votes
2answers
94 views

Terminal window title rapidly changes when first opening

When I open a fresh terminal window, the title at the top has this format: [house icon][username]-[command]-[terminal size] The command portion of the title initially says login, then it very quickly ...
1
vote
2answers
990 views

Can not successfully re-install MYSQL 10.8.2

Removed the old installation as explained here: http://superuser.com/questions/129193/how-do-i-uninstall-mysql-on-mac-os-x-snow-leopard Installed the package contained in the mysql 5.1.67 DMG ...
3
votes
1answer
36 views

characters stick at the beginning of CLI

When I press arrow up to search through the command history, some characters always remain at the beginning of the command line. Does anyone know what's going on ? How can I fix it? for example, I ...
0
votes
0answers
628 views

Apple installer issue in terminal where -target keeps saying; error cannot find Volume

I am trying to use the Apple Installer commands to install a package and the output is that it was successful, however, the end result is that nothing actually happens meaning the package never gets ...
2
votes
1answer
29 views

Piping into printf

In Terminal, I'm trying to replace MY_SUBJECT and BODY_OF_EMAIL from the command below: printf "From: Sender Name <sender@domain.com>\nTo: recipient@domain.com\nSubject: ...
6
votes
1answer
217 views

Get ambient light sensor value from ioreg

I'm using the ioreg command line tool to try and read sensor information available on my computer (iMac). Particularly, I'd like to read the current value of the ambient light sensor. So far, I have ...
0
votes
0answers
36 views

Which Unix command-line utilities besides /usr/bin/fgrep have severe bugs in 10.8?

I just got stung by /usr/bin/fgrep --file=7000.words matching nothing, on 10.8.3, version: fgrep (BSD grep) 2.5.1-FreeBSD. Gnu grep works fine with a file of 57000 words. Is there a list of other ...
0
votes
1answer
75 views

I added my username to /etc/sudoers but using sudo still asks for password

I entered my username in the sudoers file, but when using sudo in scritps, it still asks for the password. This is my sudoers file: ~: ls -al /etc/sudoers -r--r----- 1 root wheel 1297 Aug 14 ...