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Jun 14, 2008 The download file is named “cotvnc-20b4.dmg”. Here are the steps needed to install it remotely from the command line. Note: this technique can be used from a local Terminal window or a remote SSH connection. Mount the disk image. The first step is to mount (or attach) the disk image. From the command line, use: hdiutil mount cotvnc-20b4.dmg. Jan 26, 2019 Installing applications on macOS and OS X computers is easy to do when deploying the apps as packages through the Terminal using the Installer command for. May 16, 2018 Type “dmg2img” into the command line followed by the name of the DMG file you want to decompress. The Mac OS X version of Firefox is a good example of a compressed DMG file. Hfs-test$ dmg2img 'Firefox 33.1.1.dmg' dmg2img v1.6.5. Oct 28, 2011 DMG is a disk image format used on Mac OS X and it is difficult to open on Windows computer. So, the guide below will let you people give a way to open DMG files on Windows through a free utility name HFSExplorer. Continue reading after the break to read the complete process to do that. Download the JDK.dmg file, jdk-13. Interim.update.patch osx-x64bin.dmg. Before the file can be downloaded, you must accept the license agreement. From either the browser Downloads window or from the file browser, double-click the.dmg file to start it.

Make things happen quickly without touching the mouse

Text wrapping
Default editor
Foreground processes and background jobs
Folders accessed by developers
Terminal File Listing Home Folder
Create Terminal Aliases
Root user for sudo commands
Create Windows-like shortcuts with parameters using text editor

This tutorial describes how to make use of the macOS Terminal to make your life easier and less frustrating.

What Apple calls the Terminal is what Linux people call the shell (more specifically, the Bash shell). It’s also called a command-line terminal, abbreviated as CLI.

Information here is often used in interview questions.

Open Terminal (several ways)

Terminal is kinda buried perhaps because those who use a MacOS laptop just for social media probably won’t need a Terminal.

But if you’re a developer, it’s hard to get away from using a CLI.

There are different ways to open a Terminal command line.

My preferrence is a way that doesn’t require reaching for a mouse and using the least number of keystrokes:

Press command+space keys (at the same time) to bring up Apple’s Spotlight universial search, then
Type “termin” so “Terminal.app” appears.
Press the space bar to select it.

Alternately, if you prefer moving your mouse:

Click the Finder icon on the app bar.
Click Applications on the left pane.
Click Utilities.
Click Terminal.

PROTIP: If you are at the Finder program (since Yosemite) you can open a Terminal to a folder listed within Finder by pointing your mouse on it, then tapping with two fingers on the touchpad/mousepad.To enable that:

Click the Apple icon, System Preferences..
Press K and select Keyboard.
Click Shortcuts, Services.
Scroll to the Files and Folders section.
Check on New Terminal at Folder.
Close the dialog by clicking the red dot at the upper left corner.

Within Text Editors/IDEs

Many prefer the terminals built into VS Code and other editors/IDEs.

Text wrapping

This page contains notes for system administrators and developers,who need to control Macs below the UI level, which requiretyping commands into a command-line terminal screen.

To avoid text wrapping, cursor on the right edge to expand the screen width.

Hyper terminal

Get the .dmg installer from the websitehttps://hyper.is. It’s used by tutorials author Wes Bos.

Unlike Apple’s Terminal, which is closed-source, Hyper is an open-source and extensible terminal emulator. It is available on MacOS, Windows, and Linux because it’s built using Electron (the same platform that powers Atom, Slack, and Brave). So it can be slow.

To customize Hyper, add the name of many packages to its config file ~/.hyper.js. Build an extension based on hyper.is/#extensions-api.

iTerm2 for split pane

Many prefer to install and use iTerm2 instead of the built-in Terminal program.Install iTerm2 using Homebrew:

Terminal does not support but iTerm2 does support dividing the CLI into several rectangular “panes”, each of which is a different terminal session:

split window vertically with Command+D
split window horizontally with Command+Shift+D
Navigate among panes with command-opt-arrow or cmd+[ and cmd+]
Temporarily toggle maximize the current pane (hiding all others) with command-shift-enter
Exit out a pane by typing exit in that pane

Pressing the shortcut again restores the hidden panes.

On Linux, there is the screen command.

See Iterm2 Cheat Sheet of iTerm2 keyboard shortcuts. https://github.com/nobitagit/iterm-cheat-sheet/blob/master/README.md

Alphabetical Commands list

A list of all commands native to macOS is listed alphabetically at https://ss64.com/osx.

Exit

To exit from the Terminal shell:

exit

Get back in for the remainder of this tutorial.

Shutdown

CAUTION: To kill all apps and shutdown a Mac right away (with no warning and no dialog):

sudo shutdown -h now

Text Command Line Bash Shortcuts

These come from the bash terminal on Linux machines here: Press control with your pinkie, then …

control + A = Go to Beginning of line (as in A to Z)
control + E = Go to End of line (hit E using longest finger)
control + F = Forward cursor
control + B = Backward
control + H = Backspace left of cursor
control + D = Delete right of cursor
control + K = Kill line from under the cursor to the end of the line.
control + U = 'U get out of here' - Clear entire line
control + P = Previous line
control + N = Next line
control + Y = Retrieve line
control + ` = cycle through session windows
control + left = previous session
control + right = previous session

Environment Variables

A big reason to use a command-line terminal is to set environment variables.

Like on PCs, the PATH system environment variable storeswhere the operating system should look to find a particular program to execute.

To see what is already defined:
The listing such as this, which declares the “XPC_FLAGS” system variable:
declare -x XPC_FLAGS=”0x0”
This talks about setting launchd.conf and rebooting.This applies to all users.
To see what is defined:
PROTIP: $PATH must be upper case.
The response I’m getting includes:
/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin
Notice colon (:) separator used in Mac and Linux vs. semicolons used in Windows PATH.

Default editor

The command to invoke the default editor is defined by a variable:
By default, it’s TextMate:
If you want to change it to nano or other editor, see My tutorial on text editors.
On Terminal session, copy what has been typed and open the default text editor so you can edit the command:
Alternately, (which also works in Linux) while holding down the control key, press X and E together:
control + X + E
Make changes, then copy all, switch or exit to the Terminal, then paste.
Switch among programs
To switch among programs already running in macOS, hold down the command key while pressing tab multiple times until the program you want is highlighted (with its name) in the pop-up list. This is equivalent to the Windows control+Esc key combo.

Command history

List previous command history:
This is the same as:
PROTIP: History does not display commands entered with a leading space.

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