Bash-Beginners-Guide

fi
;;
*)
echo -e "Guard: \"Don't forget the guide!\"\n"
;;
esac
echo "Leaving..."
echo -e "\a\a\aThanks for visiting the Zoo, hope to see you again soon!\n"
michel ~/test> feed.sh apple camel
Feeding apple to camel...
Will you read this sign?! Don't feed the camels!
Done feeding.
Guard: "Buy the food that the Zoo provides at the entry, you ***"
Guard: "You want to poison them, do you?"
Bash Guide for Beginners
Leaving...
Thanks for visiting the Zoo, hope to see you again soon!
michel ~/test> feed.sh apple
Usage of the feed script:
./feed.sh food-on-menu animal-name
More about escape characters can be found in Section 3.3.2. The following table gives an overview of
sequences recognized by the echo command:
Table 8-1. Escape sequences used by the echo command
Sequence Meaning
\a Alert (bell).
\b Backspace.
\c Suppress trailing newline.
\e Escape.
\f Form feed.
\n Newline.
\r Carriage return.
\t Horizontal tab.
\v Vertical tab.
\\ Backslash.
\0NNN
\NNN
The eight-bit character whose value is the octal value NNN (zero to three octal digits).
The eight-bit character whose value is the octal value NNN (one to three octal digits).
\xHH The eight-bit character whose value is the hexadecimal value (one or two hexadecimal digits).
For more information about the printf command and the way it allows you to format output, see the Bash info
pages. Keep in mind that there might be differences between different versions of Bash.
Chapter 8. Writing interactive scripts 96