Listing 1. Sample output from some UNIX commands

A. The date command produces a formatted date/time string:

$ date
Sun Mar 20 08:15:48 MST 1988
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B. Use the cal command to print a monthly calendar:

$ cal 12 1988
December 1988
S M Tu W Th F S
1 2 3
4 5 6 7 8 9 10
11 12 13 14 15 16 17
18 19 20 21 22 23 24
25 26 27 28 29 30 31
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C. The uname command tells you about your system hardware and software:

$ uname -a
UNIX omni SYSTEMS 3.51 mc68k
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Listing 2. The command prints a listing of a directory

A. The standard System V ls command produces a single-column directory listing:

$ ls
07start.mm
07start.prn
listing1
listing2
listing3
listing4
outline save
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On Berkeley UNIX, ls produces a multi-column listing when output goes to the screen.

B. A long directory listing shows file and directory detail:

$ ls -l
total 55
-rw-r--r-- 1 arh omni 9693 Mar 21 15:19 07start.mm
-rw-r--r-- 1 arh omni 11026 Mar 21 21:26 07start.prn
-rw-r--r-- 1 arh omni 536 Mar 21 21:07 listing1
-rw-r--r-- 1 arh omni 417 Mar 21 21:08 listing2
-rw-r--r-- 1 arh omni 965 Mar 21 21:23 listing3
-rw-r--r-- 1 arh omni 761 Mar 21 21;10 listing4
-rw-r--r-- 1 arh omni 2470 Mar 17 21:52 outline
drwxr-xr-x 2 arh omni 48 Mar 15 14:03 save
$[]

Listing 3. Basic editing with Ed

A. Create a text file by appending lines:

$ ed sample.txt
?sample.txt
a
This is a sample file. It is being created with the 
help of the ed text editor.
.
w
81
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B. View the lines you entered using the Ed print (p) command:

l,$p
This is a sample file. It is being created with the 
help of the ed text editor.
[]

C. Terminate editing by typing the Ed quit (q) command:

q
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