Command Line Basics

Joel Ross

IMT 511

Where are we?

 pwd

(print working directory)

What's here?

 ls

(list contents)

Change Location

 cd folder

(change directory)

argument (required)

command

Paths

/absolute/path/to/file

relative/path/to/file

How to get there starting from the root

How to get there starting from here

leading slash

Path Symbols

 .

(a period):
the current directory

 ..

(two periods):
the parent directory

Path Practice

# if I start here:
$ pwd
/Users/iguest/Desktop

# and then do this:
$ cd ../Desktop/lectures/.././../

#where do I end up?
# if I start here:
$ pwd
/Users/iguest/Desktop

# and then do this:
$ cd /../Desktop

#where do I end up?

ALWAYS USE RELATIVE PATHS IN CODE!

Display Text

 echo "message"

(echo text back)

When in doubt:


ctrl-c (control and c)

to cancel!