Ping I/O will not redirect

[summersab]

I am having trouble redirecting I/O for ping when a host does not exist. For instance,

ping http://www.123abc.com &> out
ping: unknown host http://www.123abc.com

is the trouble I'm having. I have tried redirecting everything I know, but the command will not run silently nor print anything to the output file. (No, this isn't a problem with > vs >>). I'm trying to ping a list of sites, so I really need an output for every site regardless if it exists or not.

Thanks!

[Rubberman]

The output is going to stderr, which you are not redirecting. Try this:

ping http://www.123abc.com &> out 2>>out

[summersab]

I swear I did that before and it didn't work. Now it does. (Facepalm)

[Rubberman]

Or as my friend Homer says - Doh!

[summersab]

Nope, still an issue. I'm using some nasty regex to strip out the data I want. This doesn't work:

ping -c 1 -W 5 http://www.abc123.com | head -n 2 | sed 's/) 56(84) bytes of data.\|PING \|64 bytes from \|:.*//g' | sed 's/([0-9]\{1,3\}.[0-9]\{1,3\}.[0-9]\{1,3\}.[0-9]\{1,3\})\|(//g' &>> pingOut 2>> pingOut

[summersab]

Anyone? Thanks . . .

[atreyu]

is this bash or csh? i'm not familiar with csh redirecting...anyway, try this bash version:

ping -c 1 -W 5 http://www.abc123.com 2>&1 | head -n 2 | sed 's/) 56(84) bytes of data.\|PING \|64 bytes from \|:.*//g' | sed 's/([0-9]\{1,3\}.[0-9]\{1,3\}.[0-9]\{1,3\}.[0-9]\{1,3\})\|(//g'  >> pingOut 2>&1