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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Linux 'Byobu' equivelant for mac

So at home ive been a linux user for a while, and frequently use byobu in the terminal. After a little searching I was unable to find anything like it for a mac, which I now have to use at work. I'm ...
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Terminal flashes on empty backspace with Yosemite

Since using Yosemite, I've had the annoying problem of my current Terminal window flashing when backspacing on an empty line. I know on previous versions of OS X this flashing was not default, and ...
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Can I run top as screensaver?

My employer has recently issued me a MacBook Pro to play with. I have a lot of Linux experience, but I was struck by how nice the terminal looks on the Mac in full screen mode, especially when running ...
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Run sudo From Non-Admin Account

Okay, so I'm gearing up to get a new machine so I'm looking at how I can organise things better. Now, currently I use an admin account as my main login account, but I know that that's probably not ...
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How can I merge two similar-but-not identical folders?

I have a folder (which is filled with many many sub-folders and files) which is on a FireWire drive [source] which I am trying to move to a USB drive [destination]. I am trying to move all of the ...
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How can I Open Multiple Customized Terminal Shells?

How can I customized Terminal so that when I open the application it opens several shell tabs? If possible I would like to also have it run a different environment script for each tab. Example: Run ...
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ssh key persists even after I delete the private key from ~/.ssh — why?

I generated ssh keys (public and private) and stored them in ~/.ssh/myServer/. I added the public key to the server's ~/.ssh/authorized_keys file and everything works great! In my effort to try and ...
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Changing Terminal colors when ssh-ing into remote machine and back

Looking for a way automatically change terminal colors when ssh-ing into remote machine and revert back to the default colors, when exiting the ssh session. Simply, want have another colors when i'm ...
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How do I find the windowid of Google Chrome to pass to screencapture -l [duplicate]

I'd like to use screencapture -l to do automated screen captures of Google Chrome. This requires knowing the windowid of the Google Chrome process that's running. For apps that support Applescript, ...
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How can I process/read checkmarks on a paper form?

I would like to process a large number of scanned paper forms (GUI or command line). I am only interested in reading (custom) checkboxes. The form looks like this: every line has 6 circle-shaped ...
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Show text in large type on the screen via terminal

I can put large text on the center of my screen with certain apps, such as Address Book (click on a phone number and choose "Show in Large Type") or using Quicksilver (type some text and choose the ...
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Adding movie-style sound effects to the Terminal

I want to have movie style sound effects in the terminal. You know, when every keystroke and line emits a cool little beep. (Something like this.) I've used KeyClick, but that's only for keyboard ...
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SSH request timeout every time

I am trying to access a storage space we have at work via ssh but I get a timeout every single time (Mac OS 10.7.5 - Terminal). I checked firewalls, settings, even turned off Little Snitch, and port ...
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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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Best rsync options to transfer data between two Mac

I am about to move my data from my old iMac to a brand new MacBook Pro. I would like to start over with a fresh install on B and copy just a subset of my data, reinstalling applications from scratch, ...
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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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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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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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How to isolate processes that evoke insane mds_stores disk read activity?

I have an interesting situation where when I monitor my disk activity, I find that mds_store is continually running between 1 to 35 megabytes per second (averaging around 3-5 MB/s) on the read and ...
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Why use the terminal in daily non-programming life

Disclaimer: I'm a Windows boy awaiting his first mac. I never bothered learning/using command-line interfaces. I've been looking at the Terminal Tips and Tricks topic and I don't see how any of those ...
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Terminal becomes unresponsive when a “sudo” password prompt is displayed

When asked to type my password to run a sudo command, the USB keyboard goes unresponsive and I cannot type in the password or anything else. I can hit return three times to bounce out on three failed ...
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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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Possible to tag a folder via terminal?

Is it possible to tag a file or folder in mavericks via terminal command?
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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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Are there any global key combinations suitable or specifically reserved on OS X for user assignment?

I'm trying to identify an appropriate global hotkey to set in iTerm2's preferences for showing/hiding it: I'd like to avoid any conflicts with other applications' hotkeys or other future use. Are ...
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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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How to edit the /etc/hosts file?

When I open the file with TextEdit (I don't want (truly, I am not able) to use vim), it is seen as "locked", even if I modify the permissions of the file via the "Get Info" window. How can I modify ...
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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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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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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 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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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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Can I create a Desktop Shortcut/Alias to a Folder from the Terminal?

I'd like to create a desktop shortcut to a specific folder, buried deep within ~/Library/. Library is Hidden by default in Lion, and I'd like to keep it that way, for a variety of reasons. Is there 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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Firing up Terminal from an Automator Workflow?

I quite often use the python -m SimpleHTTPServer command in the Terminal to fire up a webserver for testing apps. Having just learned the basics of the Automator, I figured this would be a great use ...
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Opening a terminal window to a specific directory from a bash script

How can I write a bash script in Mac OS X that opens a Terminal window in a specific directory? I'd assume something like: open /Applications/Utilities/Terminal.app But that does nothing (maybe ...
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How to zip from terminal without creating folder structure of path to folder?

It is possible to zip a target folder with encryption by the terminal command zip -er ~/Desktop/myzippedfolder.zip ~/Documents/myfolder/ However, the contents of myzippedfolder will be a folder ...
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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 ...