Multiple Line Texts to a single line??

Hi ! I have a multiple line texts I want to convert it in single line like for Example:

The following contents is to be converted in a single line

contents:

[aaaaaaaa] [bbbbbbb]......so on
[cccccccc] [ddddddd]......so on
[eeeeeeee] [fffffffffff]......so on

Result:

[aaaaaaaa] [bbbbbbb] [cccccccc] [ddddddd] [eeeeeeee] [fffffffffff]....so on


Thanks in advance