Quick Start Guide

1d List the contents of your home directory. It should look similar to this:

-rw-r--r-- 1 tux users 0 2006-07-14 13:34 foo.xml

-rw-r--r-- 1 tux users 0 2006-07-14 13:47 home.html

-rw-r--r-- 1 tux users 0 2006-07-14 13:47 index.html

-rw-r--r-- 1 tux users 0 2006-07-14 13:47 toc.html

-rw-r--r-- 1 tux users 0 2006-07-14 13:34 manual.pdf

-rw-r--r-- 1 tux users 0 2006-07-14 13:49 myfile1.txt

-rw-r--r-- 1 tux users 0 2006-07-14 13:49 myfile2.txt

-rw-r--r-- 1 tux users 0 2006-07-14 13:49 myfile3.txt

-rw-r--r-- 1 tux users 0 2006-07-14 13:49 myfile4.txt

-rw-r--r-- 1 tux users 0 2006-07-14 13:49 myfile5.txt

-rw-r--r-- 1 tux users 0 2006-07-14 13:32 tux.png

2 With the help of wild cards, select certain subsets of the les according to

various criteria:

To list all les with the .html extension, enter

ls -l *.html

To list all “versions” of myfile.txt, enter

ls -l myfile?.txt

Note that you can only use the ? wild card here because the number-

ing of the les is single-digit. As soon as you have a le named

myfile10.txt you must to use the * wild card to view all versions of

myfile.txt (or add another question mark, so your string looks like

myfile??.txt).

To remove, for example, version 1-3 and version 5 of myfile.txt,

enter

rm myfile[1-3,5].txt

2d Check the result with

ls -l

Of all myfile.txt versions only myfile4.txt should be left.

You can also combine several wild cards in one command. In the example above, rm

myfile[1-3,5].* would lead to the same result as rm myfile[1-3,5].txt because

there are only les with the extension .txt available.

Shell Basics 99