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Old 12-15-2009, 12:03 AM   #1
ahr8tch
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How to Stop Command Results from Scrolling Off the Screen


I'm trying to fix a problem with Citrix client. I downloaded a file (linuxx86=11.0.140395.tar.gz). I want to run tar on the file preparing to install the program. When I enter tar xvvf linuxx86-11.0.140395.tar.gz I get more error messages than the screen can contain; so I don't get to see all of the results.

Is there a way to add options to the tar command that would either create a file that I can scroll through with another command or stop outputting the results after a screenful has occurred and wait for command input to proceed to the next screenful.

Here's what I entered at /user/home . . .

tar xvvf linuxx86-11.0.140395.tar.gz

I then tried . . .

tar xvvf linuxx86-11.0.140395.tar.gz more

Thinkging that more would do some magic and pipe the result into the right sized chunks. It didn't work. Go the same runaway result.

Finally is used mkdir citrix.client/ to make a file that I could put the tar results into. So then entered . . .

tar xvvf linuxx86-11.0.140395.tar.gz citrix.client/

and got a message saying that citrix.client file didn't exist.

Can anyone tell me how to go about using the tar command in such a manner that I can see all the results?

TIA
 
Old 12-15-2009, 12:16 AM   #2
~sHyLoCk~
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Well you can redirect the output into a log file.

command > ~/log
 
Old 12-15-2009, 12:24 AM   #3
david1941
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You can pipe the output to more, but you need the pipe operator
Code:
tar xvvf linuxx86-11.0.140395.tar.gz | more

Last edited by david1941; 12-15-2009 at 12:25 AM. Reason: fix code tags
 
Old 12-15-2009, 12:29 AM   #4
david1941
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If you have a lot of errors, also send STDERR to more:
Code:
 tar xvvf linuxx86-11.0.140395.tar.gz 2>&1 | more

Last edited by david1941; 12-15-2009 at 12:29 AM. Reason: code tags
 
Old 12-15-2009, 04:19 PM   #5
ahr8tch
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Thanks Folks!

I must have been making command line typos because it was telling me that it could not find a file. When I typed in the command very carefully, I was able to get it to pipe to more and see the errors.

Thanks again.

rh
 
Old 12-15-2009, 05:11 PM   #6
colucix
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Quote:
Originally Posted by ahr8tch View Post
Finally is used mkdir citrix.client/ to make a file that I could put the tar results into. So then entered . . .

tar xvvf linuxx86-11.0.140395.tar.gz citrix.client/

and got a message saying that citrix.client file didn't exist.
When you use tar in this way, that is with arguments after the name of the tar.gz compressed archive, you're asking to extract only one (or more) of the files contained in the archive itself. In other words, the command line above tries to extract a directory named citrix.client FROM the archive.

If I understand well, you want to extract all the content of the archive INTO a newly created directory, don't you? To do this you have to use the -C option:
Code:
tar xvvf linuxx86-11.0.140395.tar.gz -C citrix.client
For all the doubts related to the GNU tar command, you can refer to the official manual, one of the most exhaustive and well written pieces of documentation.
 
Old 12-16-2009, 01:32 AM   #7
catkin
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The tee command enables output to screen and log at the same time
Code:
<some command> 2>&1 | tee <some log file>
 
  


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