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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8
votes
1answer
943 views

How can I take selfie by running a console command on Mac? [duplicate]

I know I can take a selfie with the built-in camera via the Photo Booth app. However, is there a way capture an image via command line, in sort of lolcommits style?
2
votes
1answer
65 views

Terminal backslash input repeated in output

I'm using zsh on a MacBook Pro, OS X 10.10. When I type in certain commands, such as this one: cat myfile | awk -F $'\t' '{print $8, $9}' | sort | uniq -c | sort -k1,1n | awk '{if ($1 > 50) sum += ...
6
votes
3answers
1k views

Can I use GNU ps on OS X?

We can install GNU coreutils via brew. But there's no ps in the utils. Can we use gnu ps in OS X? I'd like to use GNU ps as it has more options and features.
-2
votes
2answers
52 views

How do I make this terminal script work properly?

I want it to appear like I'm contacting a bunch of ip-adresses and it works fine until the third line in the code and I want to be able to fix it. Also the 4 bottom lines don't work. So this is ...
5
votes
1answer
258 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 ...
0
votes
1answer
31 views

Where is GNU info files stored on Mac OSX?

For example, where could I find the info document of bash on mac OSX. I only know the man page is stored at /usr/share/man/ but doesn't know where to find the info file.
0
votes
1answer
40 views

Modifing a preference via applescript changes file group

I recently request help about modifying firewall settings via command-line (see my previous question). Everything is working, but I have noticed that whenever I use this command in an applescript, the ...
1
vote
2answers
348 views

Automated screensaver configuration in command line/shell script

So I'm configuring some Default User Template LaunchAgents to configure a default screensaver for some of my company's most popular fan art. (It's actually been really well received by the team). ...
3
votes
2answers
469 views

How to renice by process name?

I am trying to Launch a process using NICE but this process is starting other process by itself and they are not affected by the priority of the main process ( main process has the correct nice but ...
0
votes
2answers
296 views

Howto run a Terminal command using shortcut or a button

I always have the problem in my dock, where the download bar just stops and stays froze. I know you can do a killall -KILL Dock and it will fix the issue. Is there a way to click a button or do a ...
4
votes
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 ...
11
votes
1answer
761 views

OS X terminal “open” command and keeping focus on the command line

I appreciate the "open" terminal command to launch OS X apps. When invoking the open command for any purpose, it is overwhelmingly likely that I will have at least one other command I would like to ...
2
votes
1answer
3k views

Can I open a file in Preview from the Terminal?

I know that I can open a file with an external program from the Terminal with open, and that works for most applications. However, when I try to use a command like open -a Preview info.txt, it ...
1
vote
1answer
1k views

Lock Screen from Command Line? [duplicate]

I have activated the Keychain Menu Bar icon so I can relatively easily click Lock Screen to lock the screen of my MacBook. Is there a way to do this with a shortcut or via the command line? I know you ...
0
votes
1answer
96 views

bash- command not fount error

I tried to install omnet++ on my Macbook pro (OS 10.10) yesterday. I got an error so I delete path in my bash-profile. Now, every command I try to run in my terminal shows an error of command not ...
0
votes
1answer
272 views

grepping /Library and “Too many levels of symbolic links”

I'm trying to clean up remnants of an application that was removed: $ sudo grep -R "iNet Network" /Library ... grep: ...
1
vote
2answers
46 views

generic approach to finding the correct name to run an app from the command line

Whenever I am not in a browser or in my text editor, most of my time on my mac is spent on the terminal. What's a quick, generic way to figure out how to run a gui program from the bash shell? It ...
1
vote
0answers
2k views

Command line tool installed, but gcc/g++ compiler not working

Heads up, I have a similar problem such as in this question, but it wasn't resolved: how to debug configure.sh errors when compiling rsync on Yosemite So basically I am looking to compile code via ...
1
vote
3answers
367 views

Is there a command similar to Linux's command-not-found?

Most Linux operating systems have a package like command-not-found (http://packages.ubuntu.com/utopic/command-not-found), which provides suggestions when a shell command was not found, e.g. because ...
2
votes
2answers
5k views

How to find .bashrc or .zshrc?

I just got a MacBook Pro and am in the process of trying to get GNU commands installed. I'm following this guide, but I don't know how to do: Then add the following line to your .bashrc or .zshrc: ...
1
vote
1answer
221 views

How to list audio card IDs from terminal

I am developing a script which deals with sound recording. As user potentially can have multiple sound cards attached, I would like to give him/her a chance to select desired one. The software I use ...
3
votes
4answers
1k views

How to go to alias from terminal?

By alias, I mean the folder shortcut created when you right-click a folder in Finder and select "Make Alias". I can traverse symbolic links in Terminal with cd, but it doesn't work on aliases: bash: ...
-1
votes
1answer
142 views

Command to find out the version number of a .pkg file

Does anyone know how to retrieve the version number of a .pkg file which isn't installed yet? I'd like to use something like pkgutil --pkg-info, but that only works for installed packages. I've ...
0
votes
0answers
86 views

-bash: /Users/[me]/.rvm/scripts/initialize: No such file or directory

I was in a directory where I had a ~ and I went to remove it by doing rm -f ~ for which it said it was a directory. So I made the really silly move of doing rm -rf ~ and suddenly I get the error ...
0
votes
2answers
97 views

How can I create a script with multi command

I tried to create a script on OS X. I do something wrong. I want to execute 2 command: defaults write com.apple.finder CreateDesktop -bool true and killall Finder I saved and chmod the file but ...
0
votes
1answer
192 views

Shell set environment variables for command

I want to run a program in Terminal and set its environment variables. According to my research one can do this using: VARIABLE="value" VARIABLE2="value2" run_program Now I'd like to set a variety ...
1
vote
1answer
44 views

CLI options do not work if passed at the end of command [duplicate]

In brief: ls -a /tmp works but ls /tmp -a does not. I recently started using Macbook Pro. Coming from a Linux background, command like ls /tmp -a seems perfectly fine to me. But for some reason ...
1
vote
2answers
173 views

Does iPhone 5 have a terminal?

I'm new to iPhones and Mac, but I pretty ok with Linux. I think I could solve some of my networking issues, if I could just get into a bash shell, but I haven't been able to locate a shell. Is there ...
2
votes
1answer
869 views

How to disable Bluetooth Sharing via terminal?

I want to disable the Bluetooth Sharing that is located in the sharing preference section. I want to be able to disable it via terminal, does anyone have an idea on how to do that?
0
votes
0answers
55 views

mdimport - bad packing

While forcing the index of a folder on an external drive through the command line (mdimport), I get "bad packing" pushed to stdout. Anyone have an idea what this rather cryptic error means?
2
votes
2answers
2k views

Change accessibility setting on Mac using terminal

I would like to grant accessibility permission to some apps on Mac using Terminal as per this intruction https://support.apple.com/en-au/HT202866 which is the accessibility tab in System Preferences ...
2
votes
1answer
27 views

Can't get Terminal to Display Colour (Mavericks)

I've recently been working on a script to backup files, etc. for my own use but recently I thought it may look nicer if I was able to cleanup and have everything nice and tidy (with colours and what ...
0
votes
1answer
2k views

mysql: command not found [duplicate]

How do I use MySQL from the CLI? When I use the terminal, I get: Darrens-MacBook-Pro:~ thufir$ Darrens-MacBook-Pro:~ thufir$ mysql -bash: mysql: command not found Darrens-MacBook-Pro:~ thufir$ ...
2
votes
1answer
171 views

Open application from terminal and remain linked to the process (like Linux) so when CTRL+C is sent to terminal the application closes too

I have an application (closed-source tool not developed by me) which requires another process to exist before executing properly. When I quit this application, I also want that custom process to be ...
1
vote
0answers
135 views

Cannot compile anything anymore after upgrading to Yosemite

I noticed after upgrading to Yosemite that none of my upgrades in homebrew would work anymore. I noticed that it was a problem in general with compiling any kind of C code. The error I get is: In ...
5
votes
5answers
16k 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 ...
1
vote
1answer
208 views

How do I get the name of the wifi network I'm connected to?

I know how to find it out in Objective C, but I need to do this in a shell script. (I could compile and install one of the example programs given in the link, but surely there is already a command ...
1
vote
0answers
17 views

Preventing less from quitting when I scroll down

I don’t know if it was a change to less itself or to the Terminal app, but when I upgraded to Yosemite I noticed that I could use the mouse scroll wheel to move around in less. Whenever I use this ...
2
votes
1answer
244 views

Finder gets confused after using the mv command in the Dropbox folders

I should mention I'm new to command lines. I want to rename files using the mv command in the Terminal. I type: mv oldFileName.pdf newFileName.pdf Afterwards, I use the ls command to check whether ...
1
vote
1answer
108 views

Preview image from pipe

I have a command line utility, let's called as: produce_image. So i can do the following in the Terminal: $ produce_image > some.jpg $ open some.jpg #opens Preview.app also, I have ImageMagick ...
0
votes
1answer
250 views

Is there a way to make `open -a` pass command line arguments to the app it launches?

I'd like to run OpenSCAD from the command line with some arguments. $ open -a openscad myfile.scad works as I expect. $ open -a openscad --args --help reports LSOpenURLsWithRole() failed for ...
3
votes
1answer
811 views

Mac terminal prompt's machine name becomes “bogon” after using traceroute

I was doing some traceroute test yesterday, and today, my Mac terminal's user prompt becomes `bogon:~ myUserName$` Also when I'm doing traceroute like: traceroute www.google.com it stops with ...
1
vote
2answers
2k views

Yosemite supplied curl stopped supporting https

I am having the issue that curl is failing to deal with https, and thus I cannot update Homebrew: brew update && brew upgrade fatal: unable to access 'https://github.com/Homebrew/homebrew/': ...
1
vote
0answers
135 views

How do I configure CURL to use the same root certificates as Safari?

It seems that CURL on OS X (10.10) is broken because it does not contain the same set of root SSL certificates as Safari. Due to this it seems that there is a high chance for your to be unable to ...
2
votes
2answers
197 views

Python script executable opened by text editor

I have a simple "Hello world" script that I want to turn into an executable. The problem is that even though I went through the steps of declaring the path of the Python interpreter in the first list ...
0
votes
1answer
433 views

ss (netstat alternative) for OS X

How do I install ss on OS X? I couldn't find the iproute package in homebrew. Red Hat recommends ss over netstat in Red Hat Enterprise Linux 7. ss is provided by the iproute package. Red Hat ...
0
votes
0answers
523 views

How to paste Chinese/Unicode characters to Terminal?

I'm trying to paste these Chinese letters: 你好世界 to my Terminal, but instead I've got "^L" or some other weird characters. The same happens for other unicode characters (such as £āēīōūśṣṭēīōū) when ...
2
votes
2answers
1k views

How to remove space character (whitespace) from end of filenames and foldernames?

Problem with mac is that it allows space character at end of file or folder. If this file or folder with space character in end is beeing copied to FTP using Filezilla or Dropbox then mac makes ...
3
votes
2answers
3k views

How can I set the display settings using command line

I would like to configure the 'Scaled' property of my Macbook Pro display using the command line. How could I do that?
4
votes
1answer
623 views

Install Xcode without admin

Is there any way to use Xcode on a computer that I don't have admin permissions for? Is there a way to at least use command line tools like git and gcc?