crontab不运行links2命令

Question

I'm trying run the following command every 1 minute using crontab, but the command doesn't run.

1 * * * *  /usr/bin/links2 http://localhost/tomada/temperatura/servidor.php

The command works fine using the shell

What is the problem?

Answer 1

First -- don't use links for that purpose; it's built to be an interactive browser, but a cron job by its nature is noninteractive. curl is the right tool for the job:

* * * * *  curl http://localhost/tomada/temperatura/servidor.php

...or, if you can't use curl (why?), then wget:

* * * * *  wget -O - http://localhost/tomada/temperatura/servidor.php

Second -- if you must use links, use it in an explicitly noninteractive way, such as with -dump or -source :

* * * * *  /usr/bin/links2 -dump http://localhost/tomada/temperatura/servidor.php