tmtail

An ad-hoc replacement for multitail implemented with tmux and grcat

The following features thus come more or less for free.

• Mouse aware for select, resize etc.
• The full tmux copy-mode for scrollback browsing, searching etc
• Copy scrollback text to the clipboard (y & Y) without any fuzz, via tmux clipboard integration
• Easily extendible by adding bindings for tmux actions. The sky is the limit ..

Color highlighting is done with an node clone of grcat, grcat.js, which is about a factor 10 faster than the python original

Currently a default grcat configuration is baked into tmtail that should be well suited for tailing wildfly logs

Installation

With homebrew or linuxbrew

brew install themadsens/tap/tmtail

From source

Make sure tmux & node is installed, then dump tmtail and grcat.js somewhere in your $PATH

Syntax

Usage: tmtail [-n lines] [{-c colorconf|-h highlightpattern}] <file1> [file2] [file3] ...

Default scrollback is 1000 lines.
A colorconf file is located in the same places grcat will look.

Commands

The following help text is provided when pressing h or ?

  Up,k        Select next pane up
  Down,j      Select next pane down
  Left        Select next pane left
  Right       Select next pane right
  M-Up,M-k    Select next pane up and set height to 50%
  M-Down,M-j  Select next pane down and set height to 50%
  +           Set pane height to 50%
  _           Set pane height to 90%
  =,U,Escape  Show all panes in equal height
  M-=         Show panes tiled
  z,Enter     Toggle zoom pane
  u           Select pane from a menu to zoom (but not scroll)
  s,S         Enter scrollback
  B           Zoom pane (if not) and enter scrollback mode
  B           One halfpage back if in scrollback mode already
  F           One halfpage forward if in scrollback mode
  y           Yank. Copy selection to clipboard
  Y           Yank line to clipboard
  ?,/,n,N,V   Search etc. in scrollback mode.
              See man tmux / copy-mode for others
  h,?         Show this help text
  Space       Add a marker line to all panes
  :           Enter the tmux command prompt
  q,Q         quit

Screenshot