Rails - May 2009 - Removing part of a String

I want to get the names of all files in a given directory. When I
employ the Dir[] method, it returns the name of the files with the
pathname I invoked it with:

      allfiles = Dir["public/images/icons/**"]

So to remedy this, I try to sub out the directory prefixing the
string, as:

      for fil in allfiles do
             render :text => fil.sub( "public/images/icons/",
"" )
      end

Yet even this doesn''t remove the directory name. Clearly I am doing
something stooopid, but just don''t see it. Can someone please have a
look and see what I am missing here? Thanks you, Janna

On May 7, 2009, at 2:06 PM, JannaB wrote:
>
> I want to get the names of all files in a given directory. When I
> employ the Dir[] method, it returns the name of the files with the
> pathname I invoked it with:
>
>      allfiles = Dir["public/images/icons/**"]
>
> So to remedy this, I try to sub out the directory prefixing the
> string, as:
>
>      for fil in allfiles do
>             render :text => fil.sub( "public/images/icons/",
> "" )
>      end
>
> Yet even this doesn''t remove the directory name. Clearly I am
doing
> something stooopid, but just don''t see it. Can someone please have
a
> look and see what I am missing here? Thanks you, Janna

File.basename("/home/gumby/work/ruby.rb")          #=>
"ruby.rb"
File.basename("/home/gumby/work/ruby.rb", ".rb")   #=>
"ruby"

Dir.entries("public/images/icons") should do nicely...

On May 7, 11:06 am, JannaB
<mistressja...-PkbjNfxxIARBDgjK7y7TUQ@public.gmane.org>
wrote:
> I want to get the names of all files in a given directory. When I
> employ the Dir[] method, it returns the name of the files with the
> pathname I invoked it with:
>
>       allfiles = Dir["public/images/icons/**"]
>
> So to remedy this, I try to sub out the directory prefixing the
> string, as:
>
>       for fil in allfiles do
>              render :text => fil.sub( "public/images/icons/",
> "" )
>       end
>
> Yet even this doesn''t remove the directory name. Clearly I am
doing
> something stooopid, but just don''t see it. Can someone please have
a
> look and see what I am missing here? Thanks you, Janna

Rick Lloyd wrote:
> Dir.entries("public/images/icons") should do nicely...
And in any case:

fil = "public/images/icons/hello.ico"
p fil.sub("public/images/icons/", "")

--output:--
"hello.ico"

-- 
Posted via http://www.ruby-forum.com/.

JannaB wrote:
> I want to get the names of all files in a given directory. When I
> employ the Dir[] method, it returns the name of the files with the
> pathname I invoked it with:
> 
>       allfiles = Dir["public/images/icons/**"]
> 
> So to remedy this, I try to sub out the directory prefixing the
> string, as:
> 
>       for fil in allfiles do
>              render :text => fil.sub( "public/images/icons/",
> "" )
>       end
> 
> Yet even this doesn''t remove the directory name. Clearly I am
doing
> something stooopid, but just don''t see it. Can someone please have
a
> look and see what I am missing here? Thanks you, Janna
require ''pathname''
allfiles = Pathname.new(''/opt'')
allfiles.children.map{|a| a.basename.to_s}

or

Dir.chdir("/opt") do
allfiles = Dir["**"]
end
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