questions narrowly about terminal.app alone should use this tag. Please consider using **command-line** for any question not specifically about the native terminal app

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9
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1answer
2k views

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 ...
9
votes
3answers
6k views

Why is OS X able to send out email without first configuring SMTP?

When I try the command in terminal, an email is sent. I have checked there is no local SMTP is running, so what is the mechanism used by Apple behind the scene? echo "Hello" | mail -s "Test" foo@bar....
9
votes
1answer
3k views

Completely clear all output from a Terminal window

I would like to clear all output from a Terminal window (including all historical output) to get it back to a clean state as if you had just opened a new Terminal window, or a new Terminal tab. I can ...
9
votes
2answers
3k views

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 ...
9
votes
1answer
922 views

Why do I have 2 IPv6 addresses?

If I go to System Preferences > Network > Advanced it is shown that I have 2 different IPv6 addresses (both with a 64-bit prefix). Why is so? If I type ifconfig | grep inet on the terminal, it ...
9
votes
1answer
678 views

Terminal - how to restart session after inadvertently exiting?

Sometimes I inadvertently exit from a Terminal session (usually because I think I'm connected to a remote system, when I'm not), so I get to this point: How I can I restart the session at this ...
9
votes
2answers
8k views

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 ...
9
votes
3answers
1k views

How to remove .DS_Store from command-line auto-completion using cd?

I understand that .DS_store files serve a purpose. That said, they are a nuisance when auto-completing with the cd command. When I type cd in Terminal and press tab twice it lists all directories in ...
9
votes
1answer
1k views

How can I specify delimiters in Terminal for word and character selection before copying and pasting?

I am new to Mac and still struggling to be productive with fewer clicks and keys... When I use Terminal and click on a word, I would like the delimiter to be only space and not other characters like ....
9
votes
2answers
1k views

Can I configure terminal to show stderr output in different colour

Is it possible to configure the terminal in OS X to show stderr output automatically in a different colour than stdout output from a process? Or is this only possible if the process is outputting ...
9
votes
3answers
16k views

How do I check the download progress of Mountain Lion through the terminal?

I am downloading Mountain Lion, I know I can monitor download progress through the Mac App Store purchases screen but I want to know if I can monitor progress through Terminal.app using a shell ...
9
votes
5answers
4k views

Open new terminal window in current space, regardless of other open terminals in other spaces

When using Spaces on Mac OS X trying to open a new terminal instance results in focus being pulled to whatever space has the most recently accessed terminal window. With Finder I can click on the ...
9
votes
1answer
583 views

Is it possible to set the output language of shell commands to anything other than English?

Am I correct in my assumption that shell commands such as cp, man, ls, etc. always print their messages in English regardless of system and user settings, and also standard shell messages like "...
9
votes
2answers
2k views

How do I change the location of screenshot in OS X Lion?

The old method that works for Leopard/Snow Leopard doesn't work any more on Lion: defaults write com.apple.screencapture location /Users/kamus/Pictures/snap Has something changed or does anyone ...
9
votes
3answers
1k views

Any way to make Cmd-D “delete next word” rather than “split-pane” in Terminal

I am so used to using ⌘D to "delete-next-word" in emacs and xterm, that I automatically hit it in Terminal all the time, which rather annoyingly (to me, at least) causes the pane to split instead. I'...
9
votes
2answers
6k views

Why is is not possible mark text in my Terminal window anymore?

I am an eager Terminal user on Mac OSX Yosemite. From time to time I mark text in the Terminal window to copy(right click or cmd+c) onto the clipboard. For some reason it suddenly stopped working! I ...
9
votes
1answer
8k views

How can I access the keychain remotely from the command line?

I am storing various passwords (e.g. for remote email servers) in my keychain. From the command line, when logged in locally, I can retrieve these via: security unlock-keychain ~/Library/Keychains/...
9
votes
1answer
17k views

LSOpenURLsWithRole() failed with error -10810 - Downloaded app does not start

I'm trying to run an application downloaded from the internet (e.g., Jabref) but it seems that it fails silently. When I try to open it by double clicking it, nothing happens. When I use the terminal ...
9
votes
3answers
3k views

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 ...
9
votes
2answers
2k views

What has changed in Terminal.app in OS X 10.8?

Just upgraded OS X to Mountain Lion and noticed that Terminal.app version has changed from 2.2.3 to 2.3. Unfortunately, can`t find any information about what has changed. Do you know if there is any ...
9
votes
3answers
13k views

How to fix Terminal error DYLD_ environment variables being ignored because main executable (/usr/bin/login) is setuid or setgid?

Any time I open a new terminal window (independent of terminal app), the console stderr displays dyld: DYLD_ environment variables being ignored because main executable (/usr/bin/login) is setuid or ...
8
votes
7answers
4k views

OS X Terminal equivalent of Ctrl+Left / Ctrl+Right

In Windows and Linux I could always hit ctrl+← or ctrl+→ to skip a word to the left or right in the terminal. In text editors it seems that ⌥+←/→ works, but no dice ...
8
votes
6answers
5k views

How to prevent the application launched in Terminal from undesirably exiting?

I launch applications from the Terminal with commands like this one : /Applications/Mail.app/Contents/MacOS/Mail & The important part is the &. For Unix / Linux / Solaris : I have ...
8
votes
3answers
6k views

Find all executable files within a folder in terminal

I have a folder myfolder that contains a huge hierarchy of files/folders. How to find all executable files within this folder? On Ubuntu this works: find . -executable -type f But Mac OS X Mavericks ...
8
votes
5answers
19k views

How to persistently define aliases in Terminal

I want to add aliases to my environment so that they are available in all Terminal instances. I got this answer: Yes, you can put it in your .bashrc, .bash_profile or .profile. On some systems ...
8
votes
6answers
858 views

Where can I find a comprehensive and detailed technical software manual for OS X?

Are there books written for OS X (particularly the most current version) like the hundreds of thousands written for Unix? I'd like to know about the command-line utilities and the locations of system ...
8
votes
2answers
15k views

Editing System Preferences via Terminal

Am looking to edit system preferences settings via the command line but cannot for the life of me find the correct names of variables. In Login Options under Users & Groups, I would like to be ...
8
votes
3answers
12k views

How can I mount an encrypted disk from the command line?

When I type diskutil mount disk3 in the terminal, it says Volume(s) mounted successfully. However, the disk is not mounted and I can confirm this by opening the GUI of Disk Utility.app and also the ...
8
votes
4answers
6k views

Inconsolata font does not work in Terminal

I'd like to use Inconsolata as the closest free approximation of the Consolas font for editing and programming on my Mac. After downloading Inconsolata's OpenType file I changed TextWrangler's ...
8
votes
3answers
11k views

How do I edit Mac OS X terminal history?

How do I edit my bash history in Mac OS X? I entered a password in that window by mistake and do not want to remove my whole history.
8
votes
3answers
22k views

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?
8
votes
1answer
323 views

Unhide invisible files from the command line

By default, a number of system directories (such as ~/Library) are hidden in OS X (ie. they don't appear in Finder): I know I can do this through the GUI but I would like to add a script to my ...
8
votes
3answers
7k views

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 ...
8
votes
6answers
2k views

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 ...
8
votes
2answers
11k views

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?
8
votes
4answers
6k views

Remotely SSH to IP address in home network

I've got a device at home I want to SSH to from work. The device has port 22 open locally and I have port 22 opened on my AirPort Extreme. However, on the AirPort Extreme it says the open 22 port only ...
8
votes
1answer
3k views

In iTerm2 Command Click on URLS does not work when inside a tmux session

When not inside a tmux session, Command-Click on URLs works flawlessly. How can I make links clickable in iTerm2 when inside a tmux session? When hitting Command the mouse pointer changes to the ...
8
votes
2answers
6k views

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 ...
8
votes
1answer
493 views

How to get the geolocation of an IP address in Terminal?

Is it possible to get the geolocation of an IP address in Terminal? Not sure what the numbers in an IP address mean, but there must be some logic behind it, so lookup can't be that hard.
8
votes
1answer
4k views

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 ...
8
votes
3answers
4k views

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 ...
8
votes
1answer
1k views

Access Airport signal data

I want to be able to write the current list of Wifi networks in airport, and their respective strengths, to a file. I would like to use some sort of bash script to do this, but I am unsure how to ...
8
votes
3answers
2k views

TotalTerminal doesn't work with full-screen apps

TotalTerminal (former Visor) is an awesome plugin for Terminal that turns it into a Quake-style console that slides down on a key combination. This is tremendously useful for development because I ...
8
votes
2answers
4k views

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 ...
8
votes
2answers
508 views

Check if caps lock on in terminal

Is there a way to query the system to tell if the caps lock is on or is off from the command line in terminal.app?
8
votes
1answer
2k views

Why does the folder icon in my Terminal have a question mark overlaid?

From time to time, I spot that the folder icon in the titlebar of one of my Terminal windows has a question mark overlaid on it, e.g. this one: What does this mean? It doesn't seem to have any ...
8
votes
3answers
6k views

Need help using Homebrew 'Services' command

I installed MongoDB using homebrew recently. A few articles on the web advise to start mongo using the following command, brew services start mongo But when I use this command, I get the following ...
8
votes
2answers
614 views

How would I go about making a stand alone app on my dock to open a game using a terminal command?

I have a game that they never released for mac, and I installed the game using WINE, the install itself was flawless, but every time I want to play it, I'm forced to open Terminal and run cd /Users/...
8
votes
3answers
7k views

Change file association in terminal?

Is there a method for associating file types with applications via terminal? I thought ~/Library/Preferences/com.apple.launchservices.plist might do it, and I also have seen: Why is a command line ...
8
votes
2answers
3k views

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 ...