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masonwan/grep-color.sh

Last active June 12, 2023 18:55
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Print out Tomcat log file "catalina.out" with color
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grep-color.sh
tail -200 catalina.out | ack-grep --flush --passthru --color --color-match=red "^.*ERROR.*" | ack-grep --flush --passthru --color --color-match=green "^.*DEBUG.*"
@ElMesa
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ElMesa commented Nov 22, 2014

If u are interested i forked the gist and included the colors info with attribution included:
https://gist.github.com/ElMesa/374c556283972e96deef

@tfga
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tfga commented Sep 3, 2021

Here are my contributions, based on @ElMesa's fork:
https://gist.github.com/tfga/26c22026d9aeb9c0df3db2b39ccfbf88

  • Refactored the code to use functions, so now the main code looks like this:

    colorize red    "ERROR"                 | \
colorize red    "SEVERE"                | \
colorize green  "DEBUG"                 | \
colorize yellow "Deploying|finished"    | \
colorize blue   "INFO"

  • You can colorize the whole line or just "the word" / regex match (e.g. ERROR, SEVERE).

  • Made it a pipe:

    catalina.sh run 2>&1 | colorizeTomcat
tail -200 catalina.out | colorizeTomcat

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