ex77.sh

Shall高级编程

#!/bin/bash

# String expansion.
# Introduced with version 2 of Bash.

#  Strings of the form $'xxx'
#+ have the standard escaped characters interpreted. 

echo $'Ringing bell 3 times \a \a \a'
     # May only ring once with certain terminals.
echo $'Three form feeds \f \f \f'
echo $'10 newlines \n\n\n\n\n\n\n\n\n\n'
echo $'\102\141\163\150'   # Bash
                           # Octal equivalent of characters.

exit 0