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Data Files for the Examples
===========================
Many of the examples in this manual take their input from two sample
data files. The first, called `BBS-list', represents a list of
computer bulletin board systems together with information about those
systems. The second data file, called `inventory-shipped', contains
information about shipments on a monthly basis. Each line of these
files is one "record".
In the file `BBS-list', each record contains the name of a computer
bulletin board, its phone number, the board's baud rate, and a code for
the number of hours it is operational. An `A' in the last column means
the board operates 24 hours a day. A `B' in the last column means the
board operates evening and weekend hours, only. A `C' means the board
operates only on weekends.
aardvark 555-5553 1200/300 B
alpo-net 555-3412 2400/1200/300 A
barfly 555-7685 1200/300 A
bites 555-1675 2400/1200/300 A
camelot 555-0542 300 C
core 555-2912 1200/300 C
fooey 555-1234 2400/1200/300 B
foot 555-6699 1200/300 B
macfoo 555-6480 1200/300 A
sdace 555-3430 2400/1200/300 A
sabafoo 555-2127 1200/300 C
The second data file, called `inventory-shipped', represents
information about shipments during the year. Each record contains the
month of the year, the number of green crates shipped, the number of
red boxes shipped, the number of orange bags shipped, and the number of
blue packages shipped, respectively. There are 16 entries, covering
the 12 months of one year and 4 months of the next year.
Jan 13 25 15 115
Feb 15 32 24 226
Mar 15 24 34 228
Apr 31 52 63 420
May 16 34 29 208
Jun 31 42 75 492
Jul 24 34 67 436
Aug 15 34 47 316
Sep 13 55 37 277
Oct 29 54 68 525
Nov 20 87 82 577
Dec 17 35 61 401
Jan 21 36 64 620
Feb 26 58 80 652
Mar 24 75 70 495
Apr 21 70 74 514
If you are reading this in GNU Emacs using Info, you can copy the
regions of text showing these sample files into your own test files.
This way you can try out the examples shown in the remainder of this
document. You do this by using the command `M-x write-region' to copy
text from the Info file into a file for use with `awk'
((emacs)Misc File Ops, for more information). Using this
information, create your own `BBS-list' and `inventory-shipped' files,
and practice what you learn in this manual.