Question

Unix / Linux

11.

Globbing (filename substitution):

Provide an argument to the ls command that will result in a globbing expression that meets the following description:

Filenames that have a length of 5 characters.

12.

Globbing (filename substitution):

Provide an argument to the ls command that will result in a globbing expression that meets the following description:

Filenames that begin with an alpha and end with a digit.

13.

Globbing (filename substitution):

Provide an argument to the ls command that will result in a globbing expression that meets the following description:

Filenames that contain a period. [At least one period]

14.

Globbing (filename substitution):

Provide an argument to the ls command that will result in a globbing expression that meets the following description:

Filenames of length two inside/under directory filenames of length 3.

15.

Globbing (filename substitution):

Provide an argument to the ls command that will result in a globbing expression that meets the following description:

Filenames that contain a non-alpha.

Answer 1

1) ls argument for matching 5 character names is    ?????

usage example ls /home/jon/Desktop/?????

this will list all files that have 5 character names in user jon's desktop.

2) Filenames that begin with an alpha and end with a digit   [A-Z,a-z]*[0-9]

usage example ls /home/jon/Desktop/[A-Z,a-z]*[0-9]

3) Filenames that contain a period   ls *.*

usage example ls /home/jon/Desktop/*.*

4) Filenames of length two inside/under directory filenames of length 3 is    ???/??

usage example ls /home/jon/Desktop/???/??

If there are directory in jons desktop that have 3 chars, then files inside these directories that have 2 chars will be shown.

5) Filenames that contain a non-alpha.   *?[0-9]*

usage example ls /home/jon/Desktop/*?[0-9]*