18.104.22.168 Examples of Interpolation
Let us consider an example that uses a few of these characters:
print "A backslash: \\\n";
print "Tab follows:\tover here\n";
print "Ring! \a\n";
print "Please pay bkuhn\@ebb.org \$20.\n";
This program, when run, produces the following output on the screen:
A backslash: \
Tab follows: over here
Please pay [email protected] $20.
In addition, when running, you should hear the computer beep. That is
the output of the `\a' character, which you cannot see on the
screen. However, you should be able to hear it.
Notice that the `\n' character ends a line. `\n' should
always be used to end a line. Those students familiar with the C
language will be used to using this sequence to mean newline.
When writing Perl, the word newline and the `\n' character
are roughly synonymous.