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Old 06-02-2005, 10:35 AM   #1
Quantum0726
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Bash scripting (hide sterr messages)


Hi,
I'm writing a bash script and having two problems. Both of which could be solved (I think) in the same way, I'm just not sure how to. I am running an external command and it's writing a message to /dev/stderr. In my bash script I want to capture that message and not let it display to the screen. I know for /dev/stdout I can just use the '>' operator to capture it or send it to /dev/null, but this does not capture anything going to /dev/stderr as far as I can tell. Any ideas on how I can do this?

Thanks much!
 
Old 06-02-2005, 11:10 AM   #2
jailbait
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Location: Blue Ridge Mountain
Distribution: Debian Wheezy, Debian Jessie
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"I'm writing a bash script and having two problems. Both of which could be solved (I think) in the same way, I'm just not sure how to. I am running an external command and it's writing a message to /dev/stderr. In my bash script I want to capture that message and not let it display to the screen. I know for /dev/stdout I can just use the '>' operator to capture it or send it to /dev/null, but this does not capture anything going to /dev/stderr as far as I can tell. Any ideas on how I can do this?"

You route error messages using the number 2.
2> /dev/null

You route standard messages using the number 1.
1> /dev/null

If you do not specify a number then the default is 1.
> /dev/null

----------------------
Steve Stites
 
Old 06-07-2005, 09:05 PM   #3
Quantum0726
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Thanks Steve! That works perfectly.

I had always seen that as a way of logging the startkde command, but never really knew what it meant.
 
  


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