MultiTail – Monitor Multiple Files Simultaneously

MultiTail allows you to monitor logfiles and command output in multiple windows in a terminal, colorize, filter and merge. The tool lets you view one or multiple files like the original tail program. The difference is that it creates multiple windows on your console (with ncurses).

MultiTail – Monitor Multiple Files Simultaneously
MultiTail – Monitor Multiple Files Simultaneously

User may also monitor wildcards: if another file matching the wildcard has a more recent modification date, it will automatically switch to that file. That way you can, for example, monitor a complete directory of files. Merging of 2 or even more logfiles is possible. It can also use colors while displaying the logfiles (through regular expressions), for faster recognition of what is important and what not.

There is also filter lines (again with regular expressions). It has interactive menus for editing given regular expressions and deleting and adding windows. One can also have windows with the output of shell scripts and other software. When viewing the output of external software, MultiTail can mimic the functionality of tools like ‘watch’ and such.

This tool will be a good addition during investigating logs pulled from live system while some of the features are:

  • Display logfiles in multiple windows ,Multiple logfiles can be merged into one window , Searching all windows at once ,logfiles can be filtered with the help of one or more regular expressions ,label can be put in front of lines depending on the subwindow
  • May act as a “visual pipe” (or ‘multi-tee’). While displaying input
  • May act like a syslog server
  • suppressing of empty lines can be configured in the config file.

You can read more and download this tool over here: