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output redirection command

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# 1  
Old 02-04-2012
Question output redirection command
Dear All,

Code:
./waf --run scratch/myfirst > log.out 2>&1

The above is a command line to redirect the output to a file called log.out.

what is the 2>&1 part for ?

Thank you
# 2  
Old 02-04-2012
The syntax 2> instructs the shell to redirect standard error (file descriptor 2). The &1 is a reference to an open file descriptor (1) which is standard output. Therefore 2>&1 causes standard error to be redirected to the same file as standard output, so both stderr and stdout will be written, in your case, to log.out.
Last edited by agama; 02-04-2012 at 02:45 PM.. Reason: clarification
This User Gave Thanks to agama For This Post:
knowledgeSeeker
# 3  
Old 02-04-2012
oh alright Thanks !
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