Terminal (or Terminal.app) is the program included in Mac OS X for running applications and issuing commands using the command line interface. These programs are controlled by typing lines of text, rather than using the mouse or keyboard commands in the usual graphical user interface (GUI).

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Can Finder and the “open” command treat files with .sh or other typical extensions just like .command files?

I am looking for a way to inject some more extensions into the OS X launch services database systematically so that when clicked, they execute in the terminal app just like .command files do by ...
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How do I mount ejected external USB flash storage? [duplicate]

Suppose that we connect our flash USB drive to a MacBook, then eject this storage from Finder sidebar. Now I want to remount this storage without unplugging and replugging it into the computer, but ...
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Multiuser GNU screen sessions

I am attempting to set up multi user screen sessions on Mac OS 10.7.3 and I run into the error Attach attempt with invalid pid(xxx)!. If set it up as follows: Initial configuration of system: Make ...
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How to “chroot” a terminal inside a DMG?

I'm doing security research and for that purpose I use an SHA-2 encrypted DMG to store the tools and files I work with (containing confidential client info), to protect them from forensic examination ...
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Terminal not working after Yosemite installation

I installed Yosemite now and after the installation the terminal is not working. It used to work before, but after installation of the new OS X on Mavericks it is no longer working. How can I resolve ...
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Improved Terminal autocomplete funcionality (similar to Matlab's)

If any of you ever used Matlab, you might have noticed the command window functionality in that program. I wonder if it is possible to enable the same functionality in Mac Terminal. It works like ...
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Change my shell to a different bash version at /usr/local/bin/bash?

How can I set my /usr/local/bin/bash (which is the 4.2 version that allows auto-completion of 'cd to directory with directory name') to be my default bash for a new window instead of my regular ...
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What command combo at terminal will output a list of directories with human-readable sizes?

I'd like to open Terminal.app and enter a command like: my-macbook-pro:~ my-username$ ls -lh Instead of seeing the size of the folders in bytes that are in my current working directory, I'd like to ...
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Are Bash, Bourne, and Korn shells compiled into one binary in OSX?

On OSX 10.8, if you compare the binaries for bash, sh, and ksh, a few different shell options, they are the same size. If you take it further and cmp the binaries, there seems to be only a ...
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Is it possible that some hacker is logged in to my computer?

When I type w at the terminal I see myself logged in two times. What are console and s000? Is it possible that one of these neos is actually somebody else?
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How can I add a path to the PATH environment variable?

I want to add a path to the PATH environment variable? I have tried with export PATH=/mypath:$PATH and it works. But the next time I start the Terminal, my new path is not int the PATH environment ...
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Is there a UNIX-style triple click to select path in Terminal.app?

In Red Hat, if there is a path somewhere on my terminal window and I triple click it, the whole path is selected. I can then easily copy it using middle-click or a regular copy-paste. This doesn't ...
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Is there a beginners guide to Unix from the OS X point of view?

I'm hoping to build on my embarrassingly-limited knowledge of the command line, and I know there are a ton of great resources out there. I'm wondering if there are any books or other resources that ...
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Is there a way to force Mac OS X to close all the applications when restarting?

I sometimes shut down my Mac, and I cannot wait it shuts down because I am urgently requested to do something in another office that would require some hours. In some cases, an application that opens ...
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Time in milliseconds since epoch in the terminal

How do I get the time since the epoch, in milliseconds, in the OSX terminal? The Linux/Ubuntu equivalent is date +%s.%N: Linux $ date +%s.%N 1403377762.035521859 Which does not work in my OSX ...
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Disable Spotlight Index on 10.8 on Specific Volumes

To switch off indexing in Terminal I use: sudo mdutil -a -i off This disables it with the -a switch across all volumes and the -i off part turns "off" the indexing. If connected to my iMac is the ...
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What option should I give the sudo command to have the password asked through a graphical interface?

This problem has ben bugging me for a while now. Every now and then, I need to write a script file that should execute sudo commands. I do not necessarily know in advance that I will run as sudo so I ...
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Change *.txt to *.csv

How can I rename all *.txt in a directory to *.csv files in the terminal (Mavericks). I tried following inside the directory: mv *.txt *.csv
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Terminal command to bring up shutdown dialog?

I know how to shutdown a Mac from Terminal, but is there a way to actually bring up the shutdown dialog you get from Apple → Shut Down…?
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Merging Multiple CSV Files without merging the header

I need to merge multiple .CSV files (using the cat command) but without copying the header for each file. What's the best way to accomplish this task?
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How can I have my shell always start in a certain directory that is not my home directory

I've tried putting cd /Users/my_name/my_directory/structure in both .bashrc and .bash_login but neither works, i.e. when I open a new terminal window I am in my home (/Users/my_name/) directory. ...
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Terminal uses one theme for the first window and a different theme for later windows.

I want to set the "Homebrew" theme to be the default in Terminal. I've changed the setting in the preferences: I chose "on startup, open" : "new window with settings" : "Homebrew". Here is a ...
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Is there a better way to shutdown/restart OSX?

Whenever I want to shutdown/restart OSX I click on the menu, select shutdown, and then click the box for not saving the session, and then click OK. Then there's always at least one program that ...
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Is it possible to get the full suite of unix options for the command line tools on OS X?

I follow Unix Tool Tip on Twitter and it is interesting that many of the tips that are posted are not available on OS X. For example: cp - u will only copy files that don't exist, or are newer ...
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How to move the Downloads folder (in Mountain Lion) to another disc

I want the "Downloads" folder not on the system drive but on my second internal drive. In Lion I just deleted the "Downloads" folder and replace it with an alias with the same name (pointing to the ...
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What does Force Quit do in OS X?

How does the GUI interface for force quitting applications (⌘+⌥+esc) work? e.g. Does it work like killall Finder which would send a TERM signal by default?
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How to make Mac Terminal restore working directories when restarting

I use the Mac Terminal with a hand full of tabs each assigned to a different working directory. I have configured it to open new windows with the same working directory. Nevertheless, when I am ...
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Terminal behaving differently since updating to Lion

Ever since my company updated to Lion, terminal.app has been behaving differently. When I click on the dock icon, it sometimes opens several terminal windows at once, instead of a single one, and all ...
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How can I manipulate several security settings from terminal?

I want to change these behaviors from terminal: Auto-login Showing password after screensaver and sleep mode Go to sleep mode after x minutes Enable screensaver after x minutes
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Moving folder to Trash in Finder is not synchronized with Terminal

I tried to delete a folder which I access via terminal.app. Though the Finder moved the folder to the Trash, I was still able to see the contents and edit the file from terminal. created a textfile ...
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What does -HUP do when used with killall?

Sometimes when I'm running a killall command from Terminal, a co-worker would suggest or edit my scripts to show killall -HUP. What does the -HUP part do?
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Terminal: Application Not Responding

A few days ago, Terminal.app suddenly stopped working. Whenever I open it, the little light below the icon in the dock turns on (and stays on), but no window appears. When I right-click the icon, I'm ...
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How to control AirPort wireless radio from the command line?

I want to know how to control (specifically turn off) the networking (specifically AirPort - I want to turn off the radio) from the command line (specifically from bash in Terminal.app, being run by ...
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How do I make symbolic links invisible in the Finder?

I use SetFile via the terminal to render files and folders invisible inside Finder windows. This does not appear to work on symbolic links: the symlink destination is made invisible, rather than the ...
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Newly Installed App (gem) Via Terminal, Path?

I have used sudo gem install to install a few gems. My question is how do I know where the executable was installed, so I can add it to the path in .bash_profile?
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Turn on Back To My Mac via a Script or Command Line

The VPN software I use for work (IPSecuritas) requires me to turn off Back To My Mac to start it's connection, so I frequently turn off Back To My Mac in order to use my VPN connection (the program ...
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Mac OS X Mavericks - add to path

I'm trying to set up a phonegap project and while trying to add a platform it outputs the following error: Error: The command "android" failed. Make sure you have the latest Android SDK installed, ...
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Script to raise a single window to the front

In a script I'm trying to find the Terminal.app window containing a specific tty device and raise that window to the top. Here's what I have in Applescript so far: tell application "System Events" ...
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Figuring out what IP's and Ports a program is accessing

I play poker semi-professionally online and live. When I play online I have a hard time limiting the amount of time I play. There is a free application I found called self-control. It allows you to ...
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How to put a custom launcher in the Dock (Mavericks)

I am new to Mac OS (I am currently using Mavericks) and I have performed google searches as well as search on StackExchange regarding my question but the discussions I came across don't quite answer ...
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Open Terminal.app with directory from a given URL?

With the URL <file:///Library/Fonts> (for example in a note in NV) I can open the finder with the given location. Can I do something similar for the terminal? That is, if I write for example ...
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VIM in Terminal using Solarized Theme

I am trying to use the Solarized color scheme with VIM in Terminal on Mac OS X 10.8.5 Mountain Lion. However, the colors look washed out. They are lighter/paler than they should be. In MacVIM, the ...
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What terminal command or program can list an SSD's Power On Hours?

I'm looking to script using the unix shell the retrieval of SSD (and HDD) data that disk utility shows in the information window. I'm immediately interested in the Power On Hours and Power Cycle, ...
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Can I adjust the time delay for when the dock re-appears?

I like to hide the dock unless I need it. There is a slight delay before it will reappear. Is there a Terminal setting I can change so that the dock will instantly appear when I move my mouse to the ...
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How do I disable (and re-enable) my Thunderbolt port from the terminal?

I've been having this problem with my Matrox DualHead2Go ME and my late 2011 15" MBP (running 10.9.2). When the displays wake from sleep, the external monitor does not re-awake. I've gathered that ...
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xcodebuild firing after every terminal command

After every terminal command, the prompt becomes unresponsive for 2-3 seconds. During this time xcodebuild seems to be running: Where would this hook be that's causing the xcodebuild to be fired? I ...
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How do I run this command in verbose output mode?

I want to update my OS X Mavericks USB key and would like to be able to see what my mac is doing after I enter the following command. sudo /Applications/Install\ OS\ X\ ...
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How to keep the text selection in Terminal.app when typing

In Terminal.app, when I select some text and start typing again, the text selection is gone. I personally find this very annoying. Is there a way to make Terminal.app keep the selection when I type?
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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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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 ...