nc missing option -z

[Ed Greshko]

On 02/13/2013 05:47 PM, James Hogarth wrote:
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>     And you still get "Host is up" but, of course, the service you want isn't....
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> Err read the man page? -Pn assumes the host is up (skips the initial ping in case something drops that when you are interested in a port) so it will say the host is up in that  case - but we don't care about the host being up... we want the service so you need to parse the service output. 
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My point being, grepping for "Host is up" doesn't fill the bill.  You're saying what I said....just differently.

I still prefer tcping since there is no need to grep or awk anything.  Or worry about text being changed in a later release.  Just rely on exit status.


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