CURLOPT_TCP_KEEPALIVE(3) curl_easy_setopt options CURLOPT_TCP_KEEPALIVE(3)NAME
CURLOPT_TCP_KEEPALIVE - enable TCP keep-alive probing
SYNOPSIS
#include <curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_TCP_KEEPALIVE, long probe);
DESCRIPTION
Pass a long. If set to 1, TCP keepalive probes will be sent. The delay and frequency of these probes can be controlled by the CUR-
LOPT_TCP_KEEPIDLE(3) and CURLOPT_TCP_KEEPINTVL(3) options, provided the operating system supports them. Set to 0 (default behavior) to dis-
able keepalive probes
DEFAULT
0
PROTOCOLS
All
EXAMPLE
CURL *curl = curl_easy_init();
if(curl) {
curl_easy_setopt(curl, CURLOPT_URL, "http://example.com");
/* enable TCP keep-alive for this transfer */
curl_easy_setopt(curl, CURLOPT_TCP_KEEPALIVE, 1L);
/* keep-alive idle time to 120 seconds */
curl_easy_setopt(curl, CURLOPT_TCP_KEEPIDLE, 120L);
/* interval time between keep-alive probes: 60 seconds */
curl_easy_setopt(curl, CURLOPT_TCP_KEEPINTVL, 60L);
curl_easy_perform(curl);
}
AVAILABILITY
Added in 7.25.0
RETURN VALUE
Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.
SEE ALSO CURLOPT_TCP_KEEPIDLE(3), CURLOPT_TCP_KEEPINTVL(3),
libcurl 7.54.0 February 03, 2016 CURLOPT_TCP_KEEPALIVE(3)
Check Out this Related Man Page
CURLOPT_APPEND(3) curl_easy_setopt options CURLOPT_APPEND(3)NAME
CURLOPT_APPEND - enable appending to the remote file
SYNOPSIS
#include <curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_APPEND, long append);
DESCRIPTION
A long parameter set to 1 tells the library to append to the remote file instead of overwrite it. This is only useful when uploading to an
FTP site.
DEFAULT
0 (disabled)
PROTOCOLS
FTP
EXAMPLE
CURL *curl = curl_easy_init();
if(curl) {
curl_easy_setopt(curl, CURLOPT_URL, "ftp://example.com/dir/to/newfile");
curl_easy_setopt(curl, CURLOPT_UPLOAD, 1L);
curl_easy_setopt(curl, CURLOPT_APPEND, 1L);
curl_easy_perform(curl);
}
AVAILABILITY
This option was known as CURLOPT_FTPAPPEND up to 7.16.4
RETURN VALUE
Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.
SEE ALSO CURLOPT_DIRLISTONLY(3), CURLOPT_RESUME_FROM(3), CURLOPT_UPLOAD(3),
libcurl 7.54.0 March 06, 2016 CURLOPT_APPEND(3)
Hello,
I try to take out of the command curl the info of the time...
time curl --write \"Downloaded %{time total}\" -o ......
but having some problem. (1 Reply)
I can't quite seem to understand what the curl command does with a web address. I tried this:
curl O'Reilly Media: Tech Books, Conferences, Courses, News
but I just got the first few lines of a web page, and it's nowhere on my machine. Can someone elaborate? (2 Replies)
Hello all-
I'm (hopefully) trying to replace a WS_FTP (Windows program) job with a curl command in a script on UNIX.
In short, this process has been in place for some time, and in curl I am getting directory perm issues, which does not seem to be accurate, since this process has been in place... (2 Replies)
I hope that I can trap curl errors, and have my shell script error out and quit if curl has any sort of problem.
For example, I have the following command in my shell script:
curl --trace -n -v --ftp-ssl ftp://xxx.xxx.xxx.xxx:2122 --user user:password -o /tmp/file.txt
Works great, except... (2 Replies)
Hi all;
first of all i need to clarify that i am new to apache2 server configuration and for some needs i want to transfer some files using curl to web directory,so please bear with me:
following is the command i m running to transfer file to my web directory:
curl -T "q"... (4 Replies)
Hi,
I've installed curl with all despondency but when I try to start it I get:
root@xxx> curl
ld.so.1: curl: fatal: libcrypto.so.1.0.0: open failed: No such file or directory
Killed
Looks like I have to change/make symlinks but I don't know how/where.
Any idia?
---------- Post... (3 Replies)
Hello,
I need a simple shell script. If you can help I'd appreciate it. I'm sorry for my English.
I want to send ping to 3 web site
I want to send 5 ping to 3 web site
result:
1- www.google.com UP
2- www.yahoo.com UP
3- www.myserver.com DOWN
If myserver.com is down I want to 10... (12 Replies)
For the newbies, I should have posted this years ago....
Here is the standard (tiny) "bread and butter" perl script (on Linux) I use in my crontab files to insure key processes are alive ( just in case ! ) like httpd, named, sshd, etc.
The example below if for named......
... (1 Reply)
Hi Team,
I have few questions.
Could anyone of you please assist me in this:
============================================
1 : a small shell script to get time from internet using curl, ( Say T1 )
2 : Wait for Random interval of time between 30 sec to 1 min, and get time again.
3 : Keep... (1 Reply)
We are not allowed to install curl on our linux box. Is there any other way to talk to Rest API's in shell script rather than using curl ? - Please advise - thank you (3 Replies)
Hi guys!
Kind of new to bash scripting and now I'm stuck.
I need to curl with these variables:
"{ \"nodename\": \"$1\", \"ipaddress\": \"$2\", \"poolname\": \"$3\", \"port\": \"$4\", \"loadbalancer\" : \"$5\" }"
and my input_file.txt contains
server001 10.10.10.01 serverpool1 80... (4 Replies)
I am working on script. it reads a file which contains multiple lines
Ex;
curl --write-out %{http_code} --silent --output /dev/null http://hostname:port/input=1
curl --write-out %{http_code} --silent --output /dev/null http://hostname:port/input=2
curl --write-out %{http_code} --silent ... (2 Replies)
Hi,
As an exercise, I am attempting to scrape the following website to obtain ticket price for a certain journey, so I can capture the cheapest ticket by running the script hourly.
... (4 Replies)