Color STDERR in output

• Add Rudimentary Logging Levels According to STDOUT/STDERR

  This is a bit of a bash hack to catch STDERR and append a log level to it. So for example, if your script has pseudo loglevels like so: echo "INFO - finding files" [ -f ${files} ] || echo "WARN - no files found" Any subcommands that write to STDERR will screw that up Adding 2> >(fb=$(dd bs=1 count=1 2>/dev/null | od -t o1 -A n); [ "$fb" ] && err=$(printf "\\${fb# }"; cat) && echo "ERROR - $err") to the command does the following: 2> Redirect STDERR >( Spawn a subshell (STDERR is then redirected to the file descriptor for this subshell) fb=$(....) get the first byte of input [ "$fb" ] test if there's a first byte && err=$(printf....) save the output to the $err variable && echo "ERROR - $err" append your pseudo loglevel and the error message Heavily borrowed from https://unix.stackexchange.com/questions/33049/check-if-pipe-is-empty-and-run-a-command-on-the-data-if-it-isnt Show Sample Output

  This is sample output - yours may be different.

  INFO - finding files
  ERROR - find: ?/folder/does/not/exist?: No such file or directory

  
  

  0
  [command] 2> >(fb=$(dd bs=1 count=1 2>/dev/null | od -t o1 -A n); [ "$fb" ] && err=$(printf "\\${fb# }"; cat) && echo "ERROR - $err")
  tyzbit · 2017-10-16 22:22:42 1
  • Submit alternative
  • Report as malicious
  • Report as a duplicate

You should have used echo with -e flag: ./errorscript.sh 2> >(echo -e "\e[0;41m$(cat)\e[0m")

eliad · 230 weeks and 5 days ago

Baccarat ( Baccarat ) PTGAME88 We are the service provider. The No. 1 complete baccarat website, bringing the world's leading baccarat game camp that the most popular people come to your mobile phone. You can choose to play baccarat for free visit for further ????????????

Geekstation · 230 weeks ago

You must be signed in to comment.