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How to translate multiple spaces into a single space using tr command?

 
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# 1  
Old 09-28-2011
How to translate multiple spaces into a single space using tr command?
I am trying to read a txt file and trying to translate multiples spaces into single spaces so the file is more organized, but whenever I try the command:

Code:
tr ' ' '    ' w.txt

The output is:

Code:
tr: extra operand `w.txt'
Try `tr --help' for more information.

Can someone please help? Smilie

Moderator's Comments:
Mod Comment Video tutorial on how to use code tags in The UNIX and Linux Forums.
# 2  
Old 09-28-2011
Code:
tr -s \ <infile

# 3  
Old 09-28-2011
I totally forgot about redirection!

Thank you!
 
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