Broken on MacOS: it doesn't substitute \e

[marcellodesales]

• Running the example it prints the following:

$ bash example.sh
\e[41;37m[2021-02-08             15:40:33.N             ][FATAL ][main:18 ] fatal level\e[0m
\e[1;31m[2021-02-08             15:40:33.N             ][ERROR ][main:19 ] error level\e[0m
\e[1;33m[2021-02-08             15:40:33.N             ][WARN  ][main:20 ] warning level\e[0m
\e[1;32m[2021-02-08             15:40:33.N             ][NOTICE][main:21 ] notice level\e[0m
\e[37m[2021-02-08             15:40:33.N             ][INFO  ][main:22 ] info level\e[0m
\e[1;34m[2021-02-08             15:40:33.N             ][DEBUG ][main:23 ] debug level\e[0m
\e[94m[2021-02-08             15:40:33.N             ][TRACE ][main:24 ] trace level\e[0m

[marcellodesales]

Solution

• Based on https://stackoverflow.com/questions/5947742/how-to-change-the-output-color-of-echo-in-linux?rq=1#comment24883926_5947802, it works:
  • Replace \e with \033`

$ bash logger.sh
[2021-02-08             15:56:43.N             ][FATAL ][main:18 ] fatal level
[2021-02-08             15:56:43.N             ][ERROR ][main:19 ] error level
[2021-02-08             15:56:43.N             ][WARN  ][main:20 ] warning level
[2021-02-08             15:56:43.N             ][NOTICE][main:21 ] notice level
[2021-02-08             15:56:43.N             ][INFO  ][main:22 ] info level
[2021-02-08             15:56:43.N             ][DEBUG ][main:23 ] debug level
[2021-02-08             15:56:43.N             ][TRACE ][main:24 ] trace level