2013-04-10 22:43:41 -07:00
|
|
|
multiply() {
|
|
|
|
|
# There is never anything between the parentheses after the function name
|
|
|
|
|
# Arguments are obtained using the positional parameters $1, and $2
|
|
|
|
|
# The return is given as a parameter to the return command
|
|
|
|
|
return `expr "$1" \* "$2"` # The backslash is required to suppress interpolation
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
# Call the function
|
|
|
|
|
multiply 3 4 # The function is invoked in statement context
|
2014-01-17 05:32:22 +00:00
|
|
|
echo $? # The dollarhook special variable gives the return value
|
