Mac Terminal Echo All Library Paths

  1. Mar 10, 2014 Command Line Primer. Historically, the command line interface provided a way to manipulate a computer over simple, text-based connections. In the modern era, in spite of the ability to transmit graphical user interfaces over the Internet, the command line remains a powerful tool for performing certain types of tasks.
  2. Running your VI with command line = env gives a similar but not identical list to what running env in Terminal produces. Running echo $ gets the value of the variable. For example running env in Terminal lists several variables related to the Terminal application itself. Those do not appear when I run env through your VI.

Welcome back to Coding Corner! Today, we're going to go over some great interface and user tweaks you can execute to customize your Mac. These tricks are often simple and can help you spruce up your Mac far beyond what the System Preferences window allows.

So, without further ado, 15 great tricks you can execute in Terminal.

Tweak the Finder

Want to see hidden files, or copy Quick Look text? There are quite a few 'defaults' commands that let you alter how the Finder looks or acts.

Jun 17, 2017 This post shows how to add an entry to the Mac OS X PATH variable - (1) for the current terminal session only, (2) permanently for the current user only and (3) permanently for all users on a Mac OS X system. Here, the Tomcat startup.sh executable is used as an example. The proper solution is to set environment variable RLIBSUSER to the value of the file path to your desired library folder as opposed to getting RStudio to recognize a Rprofile.site file. To set environment variable RLIBSUSER in Windows, go to the Control Panel (System Properties - Advanced system properties - Environment Variables - User Variables) to a desired value (the path to your library. Nov 16, 2017  Note: You must have an active internet connection to access iCloud Drive and iCloud Drive files and documents. How to Access iCloud Drive from the Command Line in Mac OS. To access iCloud Drive in the Terminal of Mac OS, simply use the familiar “cd” command and specify the directory of the iCloud documents path we detailed above.

1. Show hidden files and folders

Want to see all the hidden files and folders OS X has to offer — or you simply can't find a file you hid? Just use this command in Terminal:

defaults write com.apple.finder AppleShowAllFiles -bool TRUE
killall Finder

To re-hide all your files, just change the TRUE to FALSE.

2. View any file's contents

If you've had a file get corrupted or you suspect there's something hidden inside its package, you can force Terminal to open it. Just use the following command:

cat ~/enter/file/path

Fair warning: If you try to open a photo or pretty much any non-text document, you'll likely just see text gibberish.

3. Copy the contents of a folder from one place to another

Sure, you can Option-drag any file to a new location to make a copy of it, but if you want to simplify the process and automatically copy the entire contents of one folder to another, check out this simple Terminal trick.

ditto -V ~/original/folder/ ~/new/folder/

4. Download files outside of your browser

Have the URL to a file but don't want to use Safari, Firefox, or Chrome to download it? You can go through Terminal with the following commands:

Echo

cd ~/Downloads/
curl -O http://www.thefilename.com/thefile/url.mp3

The first command moves your current Terminal location to your Downloads folder; the second downloads it from the web to that folder.

Modifying screenshots

Want to change how your screenshots look? Here are some commands to help you do just that.

5. Change your screenshot's file format

This Terminal command lets you change the file format of your screenshots. By default, they're saved as PNGs, but you can also save them as PDFs, JPGs, and more.

defaults write com.apple.screencapture type jpg

6. Disable drop shadows on a screenshot

Here's another good one if you tend to take a lot of screenshots: This command will disable drop-shadow on your screenshots, only displaying the window you've snapped.

$ defaults write com.apple.screencapture disable-shadow -bool TRUE
killall SystemUIServer

7. Create a new default name scheme for screenshots

Don't like the phrase Apple uses to save your screenshots? Traditionally, it's 'Screen Shot - [date] - [time]', but you can change 'Screen Shot' to any word you please.

Mac Echo Path

defaults write com.apple.screencapture name 'New Screen Shot Name'
killall SystemUIServer`

Get bored of your new name scheme? Go back to the default by typing as follows:

defaults write com.apple.screencapture name '
killall SystemUIServer

8. Change the location of your screenshots

Your screenshots, by default, save to the Desktop. But if you'd prefer they save elsewhere, it's an easy Terminal trick to make it so.

defaults write com.apple.screencapture location ~/your/location/here
killall SystemUIServer

You can also drag the folder of your choice on top of the Terminal window after typing 'location' if you don't want to manually type out the file path.

Mac Terminal Echo All Library Paths Free

System changes

If you're looking for broader OS X-level changes, these commands might help you get started.

9. Create a custom login message

Whether you want to troll your friends or add useful 'in case of loss' contact information, you can add a personalized message to your login screen with this Terminal command.

sudo defaults write /Library/Preferences/com.apple.loginwindow LoginwindowText 'In case of loss, call 555-555-5555.'

10. How long has my Mac been running?

Is your Mac acting sluggishly? It might be in need of a good restart. You can check to see just how long your Mac's been active by checking its uptime with this Terminal command:

Mac Terminal Echo All Library Paths 2017

uptime

11. Keep your Mac awake

Mac Terminal Show Path

If you need to prevent your Mac from going to sleep — say, you're running an extensive task, or recording your screen — there's an all-too-amusing command for that:

caffeinate

Once you enter this command, your Mac's digital eyes will be pried open and prevented from going to sleep until you end it by pressing Control-C.

If you don't want to rely on being the one to end your poor Mac's suffering, you can also create a set a number of seconds before your Mac sleeps:

caffeinate -u -t 5400

The above command will keep your Mac awake for an hour and a half.

12. Make your Mac automatically restart after a crash

We've all had our Mac freeze up or crash at least once in its lifetime. If you want to skip the crying and the yelling at the screen and get back to work, you can enter this Terminal command, which will make OS X reboot as soon as it senses a full system freeze.

sudo systemsetup -setrestartfreeze on

Modify your Dock

Want to make your Dock look different? Check out these Terminal tweaks.

13. Add spacers to your Dock

You can organize your Dock's many icons by adding in blank spaces with this handy terminal command:

defaults write com.apple.dock persistent-apps -array-add '{'tile-type'='spacer-tile';}'
killall Dock

Repeat this command for each spacer you'd like for your Dock. To remove a spacer, you can drag it out to the right until you see the poof icon.

14. Dull hidden apps in the Dock

Not sure which apps are visible on your screen? You can make this information extra pertinent by using this Terminal command, which lowers the opacity on icons for hidden apps in the Dock. It's a great way to see what you haven't used lately, as well as what's cluttering up your screen.

defaults write com.apple.Dock showhidden -bool TRUE
killall Dock

15. Hide non-active apps in your Dock

If lowering the opacity of hidden apps appeals to you, you might like this Terminal command even better: It hides any closed app from your Dock at all times.

defaults write com.apple.dock static-only -bool TRUE
killall Dock

Your favorites?

Have a Terminal command you love that we didn't mention? Drop it below in the comments.

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The shell path for a user in macOS or OSX is a set of locations in the filing system whereby the user has permissions to use certain applications, commands and programs without the need to specify the full path to that command or program in the Terminal. This will work in macOS Mojave, Sierra and all older OSX operating systems; El Capitan, Yosemite, Mavericks and Lion.

Terminal

So instead of running something like this, with a path to the command:

You can just type the command, regardless of where you are in the filing system:

Your shell path is a bunch of absolute paths of the filing system separated by colons :

You can find out whats in your path by launching Terminal in Applications/Utilities and entering:

And the result should be like this…

So this is stating that you can run Unix style applications or commands located in 5 default locations of a certain path in the filing system:

  • /usr/bin
  • /bin
  • /usr/sbin
  • /sbin
  • /usr/local/bin

These directories are not visible by default in the filing system but you can make them visible.

Adding a Temporary Location

You can add extra locations to your path, in the mysql example above it’s location /usr/local/mysql/bin which is not in the default path, you can add it in Terminal like so:

So here I have copied my existing path and added the new location on the end. Test it by running echo $PATH again in the Terminal.

One of the disadvantages of this is that the new location will only be honored for that particular Terminal session, when a new Terminal window is launched it will have the original default path again.

Adding in a Permanent Location

To make the new pathstick permanently you need to create a .bash_profile file in your home directory and set the path there. This file control various Terminal environment preferences including the path.

Move into home directory

Create the .bash_profile file with a command line editor called nano

Add in the above line which declares the new location /usr/local/mysql/bin as well as the original path declared as $PATH.

Save the file in nano by clicking ‘control’ +’o’ and confirming the name of the file is .bash_profile by hitting return. And the ‘control’+’x’ to exit nano

So now when the Terminal is relaunched or a new window made and you check the the path by

You will get the new path at the front followed by the default path locations, all the time

Rearranging the default $PATH

If you needed to rearrange the paths in the default $PATH variable, you can just do that and leave off $PATH.

So lets say you want /use/local/bin at the beginning to take precedence you can add the default path like so inside .bash_profile

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And then you can slot in other paths as required.