viksit <vik...@gmail.com> writes: > What would you recommend as the best method to tail a file using > Clojure? Are there any built in functions in contrib or core that > allow a program to read the last line of a file as it is appended to? > If not - how do people solve a problem like this? > > My aim is simple - I've got a log file and I'd like to parse it as it > gets appended to.
Tail just polls the file every 1 second or whatever (it's configurable -s option) and check's if the file's length has changed. You can do this yourself easily enough. Some discussion here (it's Java, but you'd do exactly the same in Clojure): http://stackoverflow.com/questions/557844/java-io-implementation-of-unix-linux-tail-f When I've had this problem myself (on unix), I've just been lazy and implemented it by doing: tail -f somefile.log | java ... Or shelling out to `tail' from within the program. Ugly perhaps, but I know GNU tail behaves the way I want when the file is truncated and such. :-P -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
