Scrolling output with ccze

colorsterminal

I love the default fancy output of ccze, but I can't seem to get it scroll property. Executing

tail -f something.log | ccze

from an X terminal works, but I can't scroll back once the screen has been filled (shift+pgup doesn't do anything).

How can I get it to work as expected?

Best Answer

ccze uses the curses output mode by default. (n)curses is a screen drawing library typically used by fullscreen applications. It switches to the terminal emulator's so-called "alternate screen" which does not have a scrollbar buffer, and the contents of the other, "normal screen" is restored upon exit.

Instead of this, you should use its ansi output format which is enabled by any of the -A, --raw-ansi, -m ansi or --mode=ansi command line options.

Related Solutions

Tmux – How to Reset Background to Transparent

The "transparent" feature relies upon the applications which run in the terminal to not explicitly set the background color. In particular, when clearing the background, these applications should not set the color. That corresponds to a terminal feature known as back color erase, or bce.

The TERM=screen-256color entry tells applications that they have to set the color when clearing the display (to ensure that the current color is used). There is a different terminal description screen-256color-bce which would do what you want in this case.

Colored output in less when tailing a logfile

The problem lies in the pipes on linux. CTRLc closes the pipe and less cannot reopen the pipe.

The solution I found viable was to redirect the colored log to a file, then read that file with less. A file can be tailed after a CTRL-c, and I therefore just do the following:

tail -F -c +1 | colorize > /tmp/logfilename &
less -Sr /tmp/logfilename

Works like a charm.

Best Answer

Related Solutions

Tmux – How to Reset Background to Transparent

Colored output in less when tailing a logfile

Related Question