slowtail prints any lines of a file that have appeared since the last time slowtail ran. It is useful in cron jobs that need to keep track of where they left off reading a file.
slowtail was inspired by logtail from the logcheck project[1]. For an example use case, see Etsy's logster[2].
[1] http://logcheck.org [2] https://github.com/etsy/logster
$ make
gcc -o slowtail slowtail.c
$ ./slowtail access.log
slowtail is licensed under the MIT license.