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How to supress output from tar and unzip commands?

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# 1  
Old 12-14-2016
Bug How to supress output from tar and unzip commands?
I have the below two commands in my script.

Code:
tar -xf hello.tar
unzip -o tempp.zip

When i run the script i see the below on my standard out.

Quote:
tar: blocksize = 0
Archive: tempp.zip
extracting: temp.txt
How can i suppress output coming from both the tar and unzip on my standard output.
# 2  
Old 12-14-2016
Do you see them on standard output, or do you see them on your terminal? I suspect they're actually going to standard error, which can be diverted.

Code:
command 2>/dev/null

# 3  
Old 12-14-2016
Quote:
Originally Posted by Corona688
Do you see them on standard output, or do you see them on your terminal? I suspect they're actually going to standard error, which can be diverted.

Code:
command 2>/dev/null

I do not know how to differentiate between terminal and standard output.

With your suggestion I was able to suppress tar output

But, unzip -o tempp.zip 2>/dev/null still prints the output like below which i wish to avoid.

Quote:
Archive: tempp.zip
extracting: temp.txt
Last edited by mohtashims; 12-14-2016 at 04:36 PM..
# 4  
Old 12-14-2016
man unzip:
Quote:
-q perform operations quietly (-qq = even quieter). Ordinarily unzip prints the names of the files it's extracting or testing, the extraction methods, any file or zipfile comments that may be stored in the archive, and possibly a summary when finished with each archive. The -q[q] options suppress the printing of some or all of these messages.
This User Gave Thanks to RudiC For This Post:
mohtashims
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