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Old 02-12-2004, 11:17 AM   #1
granny
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redirecting output to multiple outputs


I want to redirect output to multiple places, how can this be done. Something simple as...

ls /etc redirected to both a file and monitor. I know how to redirect to a file and understand std output is monitor, but how do I do both in 1 command?

ls /etc > file and then???
 
Old 02-12-2004, 12:01 PM   #2
Oliv'
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Code:
ls /etc/ 2>&1 | tee file
Hope this help you
 
Old 02-12-2004, 12:04 PM   #3
granny
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sweet, thanks oliv, worked perfectly. What did the 2>&1 do though
 
Old 02-12-2004, 12:11 PM   #4
Oliv'
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If my memory is good: 2>&1 is used to duplicate stderr to stdout
 
Old 02-12-2004, 01:56 PM   #5
granny
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that's what I though, but ls /etc isn't an err so why does it work. Wouldn't it just produce stnd out? Either way thanks Oliv!
 
Old 02-13-2004, 06:27 AM   #6
Oliv'
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It works because stdout remains stdout... You just add messages from stderr to stdout.
It's just a precaution if you process commands which can cause errors
 
Old 02-13-2004, 07:18 AM   #7
hiteshmaisheri
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the 2>&1 means that both stdout and sterr to the pipe and then to the tee command and to the file
 
  


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