Yes.
Timeout parameters
curl
has two options: --connect-timeout
and --max-time
.
Quoting from the manpage:
--connect-timeout <seconds>
Maximum time in seconds that you allow the connection to the
server to take. This only limits the connection phase, once
curl has connected this option is of no more use. Since 7.32.0,
this option accepts decimal values, but the actual timeout will
decrease in accuracy as the specified timeout increases in deci‐
mal precision. See also the -m, --max-time option.
If this option is used several times, the last one will be used.
and:
-m, --max-time <seconds>
Maximum time in seconds that you allow the whole operation to
take. This is useful for preventing your batch jobs from hang‐
ing for hours due to slow networks or links going down. Since
7.32.0, this option accepts decimal values, but the actual time‐
out will decrease in accuracy as the specified timeout increases
in decimal precision. See also the --connect-timeout option.
If this option is used several times, the last one will be used.
Defaults
Here (on Debian) it stops trying to connect after 2 minutes, regardless of the time specified with --connect-timeout
and although the default connect timeout value seems to be 5 minutes according to the DEFAULT_CONNECT_TIMEOUT
macro in lib/connect.h.
A default value for --max-time
doesn't seem to exist, making curl
wait forever for a response if the initial connect succeeds.
What to use?
You are probably interested in the latter option, --max-time
. For your case set it to 900
(15 minutes).
Specifying option --connect-timeout
to something like 60
(one minute) might also be a good idea. Otherwise curl
will try to connect again and again, apparently using some backoff algorithm.
It is specific to curl. From man curl
:
--data-binary <data>
(HTTP) This posts data exactly as specified with no extra processing whatsoever.
If you start the data with the letter @, the rest should be a filename. Data is
posted in a similar manner as --data-ascii does, except that newlines are preserved
and conversions are never done.
If this option is used several times, the ones following the first will append data
as described in -d, --data.
Best Answer
Same as:
curl --silent --show-error
The man page is trying to tell you that these options are to be used together. This means
Note that
S
cannot be used with any other options, ands
can be used withoutS
. These options are most useful in shell scripting.Example: (Pseudo Code)
In the example, notice that the user won't see any output during the data fetch. The user will only see the input prompt displayed in the displayInputPrompt function, unless there is an error, in which curl will print the error to
stdout
i.e. your screen.