Best way to remove ANSI color escapes in Unix

Question

I have a perl progaram its prints output with color. if I rediect the output in the file and open it in vi I see color special character. something like this.

^[[31;43mAnd this is red on_yellow too^[[0m

What is the best way to remove this color character from the output file?

Thanks

Update:

I tried thid regex. it works for me:

 cat -v a|head
^[[30;41mThis is black on_red^[[0m
^[[30;41mAnd this is black on_red too^[[0m
^[[30;42mThis is black on_green^[[0m
^[[30;42mAnd this is black on_green too^[[0m
^[[30;43mThis is black on_yellow^[[0m
^[[30;43mAnd this is black on_yellow too^[[0m
^[[30;44mThis is black on_blue^[[0m
^[[30;44mAnd this is black on_blue too^[[0m
^[[30;45mThis is black on_magenta^[[0m
^[[30;45mAnd this is black on_magenta too^[[0m


$ cat -v a|head|perl -lane 's/\^\[\[\d+(;\d+)*m//g; print'
This is black on_red
And this is black on_red too
This is black on_green
And this is black on_green too
This is black on_yellow
And this is black on_yellow too
This is black on_blue
And this is black on_blue too
This is black on_magenta
And this is black on_magenta too

Answer 1

The Perl module Term::ANSIColor provides a function, colorstrip(), to do just this. For example,

ls --color | perl -MTerm::ANSIColor=colorstrip -ne 'print colorstrip($_)'

Module Term::ANSIColor is part of the Perl core.