彩色Linux命令输出 [英] Color Linux command output

问题描述

例如，我想为locate命令的输出着色，以便轻松将其与其他终端文本区分开.

For example, I'd like to color the output of the locate command so it's easily distinguished from the other terminal text.

它应该像这样工作:

locate -bir pdf | some_command_to_color_the_result

着色不应仅限于locate命令:我需要一种通用的解决方案，该解决方案使用管道为文本着色，例如，将grep或cat的输出输入文本.

Coloring shouldn't be limited for the locate command only: I need a generic solution that colors text using pipelines, for example feeding it the output of grep or cat.

如果没有内置的Linux命令，那么任何有关如何创建命令的提示都将受到欢迎.

If there's no built-in Linux command, any hints on how to create one are appreciated.

推荐答案

norm="$(printf '\033[0m')" #returns to "normal"
bold="$(printf '\033[0;1m')" #set bold
red="$(printf '\033[0;31m')" #set red
boldred="$(printf '\033[0;1;31m')" #set bold, and set red.

somecommand | sed -e "s/someregexp/${boldred}&${norm}/g"  # will color any occurence of someregexp in Bold red

printf "%s" "$red" ; locate something ; printf "%s" "$norm"  # will color output of locate something in red
   #I (ab)use printf "%s" "something", as it's more portable than echo,and easy to modify

还有许多其他方式(例如，创建可以使正则表达式着色的函数/脚本，然后:somecommand | colorize -c green 'foo.*bar' 'other')

There are many other ways (create a function/script that can colorize a regexp, for example, and then : somecommand | colorize -c green 'foo.*bar' 'other' )

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