Replace a text in base directory

ruby-talk
1

how can replace a text from all files in
"/home/user" directory and sub directories (tree)...

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2

Pokkai Dokkai wrote:

how can replace a text from all files in
"/home/user" directory and sub directories (tree)...

Try this:

Dir.glob('/Users/me/2testing/dir2/**/*') do |fname|
  next if File.directory?(fname)

  File.open("temp.txt", "w") do |temp_file|
    IO.foreach(fname) do |line| #fname is from outer loop
      new_line = line.gsub("hello world", "goodbye")
      temp_file.print(new_line)
    end

    File.delete(fname)
    File.rename("temp.txt", fname)
  end
end

** means to look in the current directory and all subdirectories for
the filenames *, where * means all file names(including directory
names).

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3

Pokkai Dokkai wrote:

how can replace a text from all files in
"/home/user" directory and sub directories (tree)...

Using a little UNIX magic, you can get away with a shorter solution:

  find /home/user -type f -print0 | xargs -0 \
  ruby -pe 'gsub /pattern/, "replacement"' -i.bak

The "-i" will modify the file in-place and the ".bak" after it will make
a backup of the original file with a ".bak" suffix.

You could also use sed, awk, perl, etc. in place of 'ruby' in the same
command.

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4

fine
thanks 7stud

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5

This botched code bombs. Don't ever post untest code without
stating that it is untested code.

···

On Oct 5, 7:33 am, 7stud -- <dol...@excite.com> wrote:

Pokkai Dokkai wrote:
> how can replace a text from all files in
> "/home/user" directory and sub directories (tree)...

Try this:

Dir.glob('/Users/me/2testing/dir2/**/*') do |fname|
  next if File.directory?(fname)

  File.open("temp.txt", "w") do |temp_file|
    IO.foreach(fname) do |line| #fname is from outer loop
      new_line = line.gsub("hello world", "goodbye")
      temp_file.print(new_line)
    end

    File.delete(fname)
    File.rename("temp.txt", fname)
  end
end

6

William James wrote:

This botched code bombs. Don't ever post untest code without
stating that it is untested code.

lol.

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7

What you want a EULA(gy)?

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On Oct 5, 2007, at 10:33 AM, 7stud -- wrote:

William James wrote:

This botched code bombs. Don't ever post untest code without
stating that it is untested code.

lol.

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8

William James wrote:
>
> This botched code bombs. Don't ever post untest code without
> stating that it is untested code.
>

My god... you ran code posted to a mailing list blindly?!?
I made that mistake... once.

  ~Wayne

9

Wayne E. Seguin wrote:

William James wrote:

This botched code bombs. Don't ever post untest code without
stating that it is untested code.

My god... you ran code posted to a mailing list blindly?!?
I made that mistake... once.

  ~Wayne

puts "Whiner!"