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Re: gathering trace rute output to a file?




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On Sun, Jul 01, 2018 at 07:19:02PM +0100, mick crane wrote:
> On 2018-07-01 06:00, Karen Lewellen wrote:
> >Well it seems   it works like this.
> >traceroute domain-to-be-traced.com > trace-results.txt
> >or something like that.
> >process worked for me just now.
> >Thanks as usual,
> >Karen
> 
> I'm asking 'cause I don't really know.
> What's the difference between a pipe "|" and sending the result
> somewhere ">" ?

The pipe starts a process (using the command and parameters right of
the pipe symbol) and sends the stdout of the "left" process to the
stdin of the right process as in:

  ls -l | less

... this would send the output of "ls -l" to the input of "less",
which pages that input for you, or

  ls -l | grep lolcat

...which sends the output of "ls -l" to the input of "grep lolcat",
this last filtering out the lines containing the pattern "lolcat",

while ">" would redirect the standard output to a file, like in

  ls -l > /tmp/result

...which will create a file /tmp/result (or replace an existing
file) and fill it with "ls -l"'s output.

HTH
- -- tomás
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