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Old 05-25-2007, 06:45 AM   #1
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Suppressing error messages in BASH Shell

Hello Experts,

I want error messages of Linux commands to be redirected to '/dev/null' , I know we can redirect the error messages by running an individual command ..but i want this to be a standard feature in my BASH environment(All Linux command error messages to be sent to /dev/null/). I did lot of googling and could find that the command to get this done is

"exec 2>/dev/null"

I tried both in .bash_profile file, but still i see Linux command error messages displayed on the stdout.

Plz help me with the above problem.

Thx in advance.
Old 05-25-2007, 06:51 AM   #2
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umm, i think those error messages are there for a reason, one day you may need them to resolve a problem...
Old 05-25-2007, 07:52 AM   #3
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You may decide that both stderr and stdout are directed to /dev/null this way:
exec 1>/dev/null 2>/dev/null
but then you won't even have an "echo" of what you type...

Old 05-25-2007, 08:35 PM   #4
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Thx for responding what if i want to direct only stderr messages to /dev/null ?
Old 05-25-2007, 08:59 PM   #5
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Your best bet is just the 2>/dev/null, at the end of the commands you type.

Why do you not want to see error messages? They can be very useful in trying to solve problems.

You can, of course, create aliases for commands that you regularly use that you don't want to see the error messages:
alias ls = "ls 2>/dev/null"
in .bashrc.

I hope this helps


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