Reading files

Ruby
1

this is just a very basic example but how would you make it so that a
user
may put their name (or some other info) into a file and then the program
reads it and sets it as a variable?

so like:

def say_hi(who)
result = "hello " + who
return result
end

puts say_hi(person_name)

2

smc smc wrote:

puts say_hi(person_name)

To read a file:

person_name = File.read(“somefile”)

To read from command line:

person_name = gets.strip

To make your say_hi shorter:

def say_hi(who)
“hello #{who}”
end

Hope that helps.

-Justin

3

smc smc wrote:

this is just a very basic example but how would you make it so that a
user
may put their name (or some other info) into a file and then the program
reads it and sets it as a variable?

so like:

def say_hi(who)
result = "hello " + who
return result
end

puts say_hi(person_name)

data.txt

Sally Smith
123-4567
[email protected]

data = IO.readlines(“data.txt”)

puts data[0].strip
puts data[1].strip
puts data[2].strip

4

so how would you set it up?

def say_hi(who)
“hello #{who}”
end
person_name = File.read(“name.txt”)
end

i tried messing around with it a little, it kept giving me syntax errors

5

The syntax errors are because you have an extra ‘end’. You also don’t
ever call your method. Is this what you want?

def say_hi(who)
“hello #{who}”
end

person_name = File.read(“name.txt”)
puts say_hi(person_name)

On 10 Oct 2007, at 12:49, smc smc wrote:

errors

end
Stefan
Alex G.

Bioinformatics Center
Kyoto University

6

ah yes…
thanks Alex