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    tail-forever

    0.3.16 • Public • Published

    tailF

    a node.js library to implement tail -F. The power than tail -F is: it can watch a not exist file, also can continue watch file after file was removed.

    install

    npm install tail-forever

    Use

    simple case

    Tail = require('tail-forever');
     
    tail = new Tail("fileToTail");
    tail.on("line", function(line) {
      console.log(line);
    });
    tail.on("error", function(error) {
      console.log('ERROR: ', error);
    });

    save postion can continue watch next time

    if you applicaiton down or have to restart, you want to continue watch file from last postion to avoid lost data during down time. you can do it like this:

    // unwatch return opsition which has two attributes: inode and pos. inode is the file's inode and pos is position where watched. you can save it on persistent file or database.
    position = tail.unwatch()
     
    // watch file after application restart. 
    new Tail('/file/path', {start: position.pos, inode: position.inode})
     

    Keywords

    Install

    npm i tail-forever

    DownloadsWeekly Downloads

    172

    Version

    0.3.16

    License

    none

    Unpacked Size

    21.2 kB

    Total Files

    7

    Last publish

    Collaborators

    • megastef
    • shaomq