This bash script monitors url for changes and print its tail into standard output. It acts as "tail -f" linux command. It can be helpful for tailing logs that are accessible by http.
Script needs curl to be installed. Many Linux distributions as well as Mac OS X already have curl installed.
Just download url-tail.sh, chmod, then use it.
sudo curl -o /usr/bin/url-tail -s https://raw.githubusercontent.com/micmejia/url-tail/master/script/src/url-tail.sh
sudo chmod +x /usr/bin/url-tail
This assumes you have curl.exe and bash.exe installed in your machine.
Just download url-tail.sh and url-tail.bat, and save it to one of the directory under your PATH environment variable.
Syntax: url-tail <URL> [<starting_tail_offset_in_bytes> | -1] [<update_interval_in_secs>] [<curl_options>...]
To start tailing url just run:
url-tail http://example.com/file_to_tail
Script will stop automatically if remote file will be re-created e.g. in case of log rotation.
If you want to start url-tail with some data displayed you can tell it how many bytes to fetch from the end of file:
url-tail http://example.com/file_to_tail 1000
Or initially fetch all the file's data:
url-tail http://example.com/file_to_tail -1
Default update_interval_in_secs is 3 seconds.
All remaining command arguments <curl_options> will be passed to curl.
Full example: tail the file with 0 bytes initially, update every 10 seconds, and specify server user and password:
url-tail http://example.com/file_to_tail 0 10 -uusername:password