Thank you for purchasing through links and ads on this site.
OWC / MacSales.com...
diglloyd Deal Finder...
Buy other stuff at Amazon.com...
Upgrade the memory of your 2019 iMac up to 128GB
Handpicked deals...
$2998 $2498
SAVE $500

$1199 $920
SAVE $279

$1999 $1599
SAVE $400

$2799 $2399
SAVE $400

$400 $280
SAVE $120

$1798 $1598
SAVE $200

$3297 $2797
SAVE $500

$3397 $2797
SAVE $600

$1398 $898
SAVE $500

$3698 $2998
SAVE $700

$1799 $1329
SAVE $470

$1999 $1199
SAVE $800

$2249 $1549
SAVE $700

$2399 $2049
SAVE $350

$2799 $1899
SAVE $900

$997 $897
SAVE $100

$2099 $1699
SAVE $400

$1999 $1369
SAVE $630

$1349 $949
SAVE $400

$4499 $3999
SAVE $500

$1499 $1029
SAVE $470

$1499 $1289
SAVE $210

$2199 $1999
SAVE $200

$3399 $2199
SAVE $1200

$2418 $1718
SAVE $700

OWC Thunderbolt 3 Dock
Ideal for any Mac with Thunderbolt 3


Dual Thunderbolt 3 ports
USB 3 • USB-C
Gigabit Ethernet
5K and 4K display support plus Mini Display Port
Analog sound in/out and Optical sound out

Works on any Mac with Thunderbolt 3

Basics of Command Line

Last updated 2013-01-08 - Send Feedback
Related: how-to, software

The command line is a powerful tool which can shorten and simplify many tasks.

However, the command line requires some investment in learning. This page covers a few very basic ideas in using the command line.

  • Lines preceeded with '#' are explanatory comments.
  • The prefix “diglloyd:MPG lloyd$ ” is a prompt emitted by the command line; do not type this; your system will have something of the same form reflecting your own system names.
  • Commands to type are shown in bold.

Very quick general tips for the command line

  • Spaces matter; they are used as separators on the command line. Hence “Macintosh HD” is a nuisance name for a volume, as is any file name with spaces (enclose in straight quotes ""). Hence I name my boot volume “Boot”, which is also shorter and easier to type.
  • Directory paths are separated by a forward slash "/".
  • Case sensitive: Boot ≠ boot ≠ BOOT.
  • The tab key will auto-complete filenames.
  • There are a variety of special characters to be aware of, but the main useful one is the "*" character which can be used to wild card file names instead of typing them out (e.g. “ls *.jpg” to list all .jpg files).
Protect Your Phone
NuGard KX Case for iPhones and iPads.
Outstanding protection against drops and impact!
Plus, excellent grip for wet hands, cycling, etc.

Very brief examples of commands

The very, very basics.

Change directory

# change to home directory
diglloyd:MPG lloyd$ cd
# change to top level of the volume 'Master'
diglloyd:MPG lloyd$ cd /Volumes/Master
# change to top level of boot volume
diglloyd:MPG lloyd$ cd /
# change to Applications folder on boot volume
diglloyd:MPG lloyd$ cd /Applications

List files

# list files in current directory
diglloyd:MPG lloyd$ ls
# list files in current directory, recursively
diglloyd:MPG lloyd$ ls -lR
# list files in directory Photos on volume Master
diglloyd:MPG lloyd$ ls /Volumes/Master/Photos
# list all .jpg and .JPG files in current directory (wild card)
diglloyd:MPG lloyd$ ls *.jpg *.JPG

Run a command in the current directory

# run the command verifyVolumes.sh, found in the current directory
diglloyd:MPG lloyd$ ./VerifyVolumes.sh
View all handpicked deals...

Sony Alpha a7R III Mirrorless Digital Camera Body with Accessories Kit
$2998 $2498
SAVE $500

diglloyd.com | Terms of Use | PRIVACY POLICY
Contact | About Lloyd Chambers | Consulting | Photo Tours
Mailing Lists | RSS Feeds | Twitter
Copyright © 2019 diglloyd Inc, all rights reserved.
Display info: __RETINA_INFO_STATUS__