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awk to txt provide strange character

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Top Forums Shell Programming and Scripting awk to txt provide strange character
# 1  
Old 02-15-2012
awk to txt provide strange character
Hi all,

I executed this script
Code:
top -n 1 | awk '{ if (NR==3) print $2 }'

and it will give me in console
Code:
'31.6%us,'

however, if I put the same script in txt file
Code:
top -n 1 | awk '{ if (NR==3) print $2 }' >> test.txt

when I open the test.txt
I see
Code:
31.6%ESC(BESC[mESC[39;49mus,ESC(BESC[mESC[39;49mESC(BESC[m

I just actually need the 31.6 % to be written there, but some strange characters are rendered there. Can anyone help me with this?

*thank you moderator for editing this post

Thank you

Moderator's Comments:
Mod Comment Use code tags, see PM.
Last edited by peuceul; 02-15-2012 at 11:42 AM.. Reason: code tags
# 2  
Old 02-15-2012
top is using ANSI esccape sequences to format the output to the screen. Some versions of top have an option to write directly to a file rather than the tty. This means those sequences are not there in the file. Batch mode may help.

Check your documentation or try
Code:
top -h

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