Files and variables (noob alert)

Ruby
1

Chaps,

Say you’ve defined a variable:-

a = “l2.txt” # where l2.txt is a file that you know exists
irb(main):009:0> File.exist?(“l2.txt”)
=> true

#How can I use the variable a within the File.exist(parameter)?
irb(main):012:0> a
=> “l2.xt”

irb(main):013:0> File.exist?(a)
=> false

irb(main):015:0> File.exist?("#@a")
=> false

2

On 1/27/06, John M. [email protected] wrote:

=> “l2.xt”

irb(main):013:0> File.exist?(a)
=> false

irb(main):015:0> File.exist?(“#@a”)
=> false

That should just work:

irb(main):010:0> File.exist? ‘helloworld.rb’
=> true
irb(main):011:0> a = ‘helloworld.rb’
=> “helloworld.rb”
irb(main):012:0> File.exist? a
=> true
irb(main):013:0> File.exist? ‘nothere’
=> false

3

Thanks!
On Sat, 28 Jan 2006 06:44:42 +0900

4

irb(main):006:0> x = ‘l2.txt’ if File.exist? ‘l2.txt’
=> “l2.txt”
irb(main):007:0> x
=> “l2.txt”

Thanks ever so much for your speedy reply. Now I’m starting to get
somewhere!

On Sat, 28 Jan 2006 06:44:42 +0900