This is a sample text file

It contains several keywords eg. word1 which the shell script is
supposed to recognise and substitute with a hypertext link to a
glossary file.

Other words which should be detected are word2 and word3.

Selection of these links should display the meanings of the
respective words.


Further keywords such as keyword1, keyword2 and keyword3 may be
detected by yet other shell scripts.  They may carry out actions
not related to displaying the meaning of the word, eg. keyword4 and
keyword5.
