A few days ago I was visiting one of my favorite sites (commandlinefu) and read something about “Color Highlighted Log Viewing” so I tried it and was instantly hooked. According to it’s website: “CCZE is a robust and modular log colorizer with plugins for apm, exim, fetchmail, httpd, postfix, procmail, squid, syslog, ulogd, vsftpd, xferlog, and more”

Usage is really simple. Just install it:

yum install ccze (Red Hat/CentOS)
apt-get install ccze (Debian/Ubuntu)

And use it like:

tail -f -n 50 /var/log/syslog | ccze

You will see something like this:

CCZE Colored logs

CCZE Colored logs


9 comments so far

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  1. Alex

    The RPM can be downloaded from


  2. Mark

    for some reason, if you want to colorize one-time (not following i.e. tail -f) you need to specify ccze -A for ANSI

  3. anacondaweb

    Very useful

  4. Deepak

    How to pause it?

  5. AskApache

    This is one of my most useful favorite tools!

    Screenshot from http://www.askapache.com/linux/elite-log-file-scrolling-color-syntax.html

  6. Zee

    Can not get scrollback to work. so close to being awesome…

  7. Agagax


    1 year old post but just in case :

    $ cat /var/log/ufw.log | ccze -A | less -R

    will let you use ‘less’ in colorized version.

  8. Mischa ter Smitten


  9. Eric

    For better performance I have been adding the “-o nolookups” option

    $ cat filename | ccze -A -o nolookups | less -R