topic Re: echo in Operating System - HP-UX

echo

Fuad_1 — Mon, 18 Aug 2008 10:33:30 GMT

Hi all,

echo "\$send_file_list" | ftp -i xyz

What the above script line is doing, and where I can get the send_file_list?

Thanks.

Re: echo

James R. Ferguson — Mon, 18 Aug 2008 10:43:20 GMT

Hi:

The echo statement is writing to STDOUT the exact string shown and then passing (piping) that to the 'ftp' process which is going to open an interactive ftp session with host "xyz".

The backslash in front of the '$' escapes tells your shell *not* to interpolate the string as a variable but leave it alone.

Regards!

...JRF...

Re: echo

Fuad_1 — Mon, 18 Aug 2008 10:49:48 GMT

Thanks James,

But where I can see the value of send_file_list?

Re: echo

Oviwan — Mon, 18 Aug 2008 10:52:26 GMT

there is no value for send_file_list. try it in a shell:
# echo "\$send_file_list"
$send_file_list

is this a line in a script?

Re: echo

Fuad_1 — Mon, 18 Aug 2008 10:55:02 GMT

Yes, this suppose to transfer file from one server to another!

Re: echo

James R. Ferguson — Mon, 18 Aug 2008 10:55:18 GMT

Hi (again) Fuad:

> But where I can see the value of send_file_list?

There is no value. The backslash ('\') tells the shell *not* to evaluate the '$send_file_list'. Compare these:

# send_file_list=somefiles
# echo "$send_file_list"
somefiles
# echo "\$esnd_file_list"
$send_file_list

Regards!

...JRF...

Re: echo

James R. Ferguson — Mon, 18 Aug 2008 10:57:20 GMT

Hi (again) Fuad:

> Yes, this suppose to transfer file from one server to another!

Then you undoubedly want to drop the '\' from "\$send_file_list".

Regards!

...JRF...