How to Create a New File

ruby-talk
1

let's say I want to create a new file named new_file.txt. how do i do
this in ruby? it would seem to be trivial, however, i'm going through
the pickaxe book and i can't find anything that relates to this.

tia...

2

How about something like this:

File.open( 'new_file.txt', 'w' ) {|file| file.write( 'yo' )}

#hth,
# -Harold

···

On 7/30/06, Skeets <skillet3232@yahoo.com> wrote:

let's say I want to create a new file named new_file.txt. how do i do
this in ruby? it would seem to be trivial, however, i'm going through
the pickaxe book and i can't find anything that relates to this.

tia...

3

Different ways:

Easy pure ruby:

f = File.open("new_file.txt","w")
f.close

Or if you are on *nix/cygwin:

system("touch new_file.txt")

4

This is just golfing, and I should be ashamed of myself, but something like ...

    `>~/new_file.txt`

... will do it on most Unix systems (including Mac OS X).

Regards, Morton

···

On Jul 30, 2006, at 1:35 AM, Skeets wrote:

let's say I want to create a new file named new_file.txt. how do i do
this in ruby? it would seem to be trivial, however, i'm going through
the pickaxe book and i can't find anything that relates to this.

5

Skeets wrote:

let's say I want to create a new file named new_file.txt. how do i do
this in ruby? it would seem to be trivial, however, i'm going through
the pickaxe book and i can't find anything that relates to this.

tia...

i know why my initial attempt was mucked up...

f = File.open( 'new_file.txt', 'w' )

i tried to assign it to a variable - that's a no no in this case.

6

thanks, everyone.

Harold's solution works. i tried this before posting, but got an
error. i guess i mucked up the code, b/c it works fine now.

thanks again.

Harold Hausman wrote:

···

How about something like this:

File.open( 'new_file.txt', 'w' ) {|file| file.write( 'yo' )}

#hth,
# -Harold

On 7/30/06, Skeets <skillet3232@yahoo.com> wrote:
> let's say I want to create a new file named new_file.txt. how do i do
> this in ruby? it would seem to be trivial, however, i'm going through
> the pickaxe book and i can't find anything that relates to this.
>
> tia...
>
>
>

7

This is just golfing, and I should be ashamed of myself, but
something like ...

   `>~/new_file.txt`

Whee, CLI obfu. Well, something potentially useful for it, anyway.

···

On Sun, Jul 30, 2006 at 03:31:30PM +0900, Morton Goldberg wrote:

... will do it on most Unix systems (including Mac OS X).

--
CCD CopyWrite Chad Perrin [ http://ccd.apotheon.org ]
"It's just incredible that a trillion-synapse computer could actually
spend Saturday afternoon watching a football game." - Marvin Minsky

8

Skeets wrote:

i know why my initial attempt was mucked up...

f = File.open( 'new_file.txt', 'w' )

i tried to assign it to a variable - that's a no no in this case.

Um, no... that's not a nono. :slight_smile:

What did this do for you?

Of course, properly you'd use File.new in that case,
and if you use File.open you'd use a block...

Hal