colorize
*nixy filter that adds color to its standard input by rows or columns
Example usage
output alternate rows in different colors:
$ ls -l | colorize.py -a $ ls -l | colorize.py -a green,blue
output each space separated column from stdin in a different color:
$ tail -f logfile | colorize.py $ tail -f logfile | colorize.py -c green,blue,red,yellow
output the first 3 space separated columns in different colors and all subsequent text in one color:
$ tail -f logfile | colorize.py 3 $ tail -f logfile | colorize.py -c green,blue,red 3
output the columns specified by widths in different colors
# - The first 10 characters is green, the next 12 in red, followed by space # separated columns alternating in green and red $ tail -f logfile | colorize.py -c green:10,red:12 # - The first 10 characters in green, the next 12 in red, all subsequent text in yellow $ tail -f logfile | colorize.py -c green:10,red:12,yellow 3 # - The first 10 characters in the default first color (blue), the next 12 in green, # the next space separated column in red, the subsequent text in yellow $ tail -f logfile | colorize.py -c :10,green:12,red,yellow 4
filter the output of tail -f, coloring lines from each file in different color:
$ tail -f first.log second.log | colorize.py -t $ tail -f first.log second.log | colorize.py -t green,yellow
Demo
Usage Tip
If you use bash, you can create colorized versions of commands, like:
function ctail() { tail $@ | colorize.py -t; }
function cll() { ls -l $@ | colorize.py 8; }
function cvmstat() { vmstat $@ | colorize.py -a red,green; }