My favourite alias in .bashrc on Ubuntu

Colorizing and handling system/kernel logs

• alias logread='cat /var/log/syslog | ccze -A'
• alias logclear='sudo truncate -s 0 /var/log/syslog'
• alias logsave='cat /var/log/syslog | ccze -h > ~/log.html'
• alias dmesgread='dmesg | ccze -A'
• alias dmesgclear='sudo dmesg -c'
• alias dmesgsave='dmesg | ccze -h > ~/log.html'

You will have to install ccze (sudo apt-get install ccze)