LogViewer

Introduction

This script demonstrates new features of list dialog. Script displays content of specified log file and mark some special strings: with word "kernel" by setting italic font, with word "error" by light yellow background and with word "warn" by pink background

Code

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

#! /bin/bash LOGFILE=${1:-/var/log/messages} PARSER='{font=""; color="#FFFFFF"}; \ /kernel/ {font="italic"}; \ /warn/ {color="#FFF4B8"}; \ /error/ {color="#FFD0D8"}; \ OFS="\n" {print $1 " " $2, $3, $4, substr($5,0,index($5,":")-1), \ substr($0,index($0,$6)), font, color; fflush()}' tail -f $LOGFILE | awk "$PARSER" | \ yad --title="Log viewer" --window-icon=logviewer \ --button=gtk-close --geometry 600x350 \ --list --text="Content of $LOGFILE" \ --column Date --column Time --column Host \ --column Tag --column Message:TIP \ --column @font@ --column @back@ exit $?