12-11-2009
It'd probably be better to create just 1 script that downloads the data (take a look at wget or curl for that), and, afterwards if successful, uploads it to the other server (plain FTP or SCP are good for that). That way you only have to create 1 script, and can be sure that the second task (uploading) only runs if the first has been successful.
My suggestion on how to start this:
- Find out how to down- and upload the file(s) from the command line. No script, no automation, just get to know the commands
- Find out how to create a script that does that, as a first step of automation. Nothing fancy, just get to know the possible return codes in case something goes wrong (Hint: $? is very useful for that)
- Outline a program flow for a script that could handle most situations without outside help. That will be the start for your real script
- If you've got your script ready and tested, write the crontab entry
If you need help anywhere along the way, just come back and ask, we don't bite. And I don't think you'll have problems with either shell scripting or Perl, as PHP was "inspired" heavily by both.
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LEARN ABOUT MOJAVE
curlopt_accepttimeout_ms
CURLOPT_ACCEPTTIMEOUT_MS(3) curl_easy_setopt options CURLOPT_ACCEPTTIMEOUT_MS(3)
NAME
CURLOPT_ACCEPTTIMEOUT_MS - timeout waiting for FTP server to connect back
SYNOPSIS
#include <curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_ACCEPTTIMEOUT_MS, long ms);
DESCRIPTION
Pass a long telling libcurl the maximum number of milliseconds to wait for a server to connect back to libcurl when an active FTP connec-
tion is used.
DEFAULT
60000 milliseconds
PROTOCOLS
FTP
EXAMPLE
CURL *curl = curl_easy_init();
if(curl) {
curl_easy_setopt(curl, CURLOPT_URL, "ftp://example.com/path/file");
/* wait no more than 5 seconds for FTP server responses */
curl_easy_setopt(curl, CURLOPT_ACCEPTTIMEOUT_MS, 5000L);
curl_easy_perform(curl);
}
AVAILABILITY
Added in 7.24.0
RETURN VALUE
Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.
SEE ALSO
CURLOPT_STDERR(3), CURLOPT_DEBUGFUNCTION(3),
libcurl 7.54.0 March 06, 2016 CURLOPT_ACCEPTTIMEOUT_MS(3)