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stderr redirection

 
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# 1  
Old 12-12-2002
stderr redirection
Does anyone know away of redirecting the stderr for a bourne or korn shell script to a file.
# 2  
Old 12-12-2002
I though it was the same for all shells?

This shold produce a file 'junk.txt' with an error from stderr

Code:
$ RunFail > junk.txt 2>$1

# 3  
Old 12-12-2002
Actually it's:
$ RunFail > junk.txt 2>&1

That is you need an ampersand, not a dollar sign. And that syntax will not work with csh or csh clones.
# 4  
Old 12-12-2002
Thanks Perderabo.

I I rewrite it as:
RunFail >> junk.txt 2>>&1

will it append to the file?
# 5  
Old 12-12-2002
There is no such thing as 2>>&1

>> junk.txt
will open the file in append mode and attach it to fd 1

2>&1
will duplicate fd 1 and attach it to fd 2. You use this form for everything. It does not matter how fd 1 came to exist.
# 6  
Old 12-12-2002
Opps to my typo Smilie

thanks Perderabo
 
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