Question

21

How do I teach bash in Ubuntu some curse words?

rated 0 times [ 21] [ 0] / answers: 1 / hits: 2641 / 1 Year ago, mon, may 15, 2023, 11:58:45

When bash encounters an unknown command(word?) it does this :

The program 'hello' can be found in the following packages:

 * hello

 * hello-debhelper

Try: sudo apt-get install <selected package>

what I would like to know is how this is done so I can edit it or add something before it to cross check the unknown word from a home grown dictionary which would have phrase:reply pairs that can then be sent to output.

I am guilty of not looking enough for it around .. but the few bash guides I tried digging up didn't have anything on this. Maybe I am looking at the wrong places .. any pointers?

And yes I am doing this so every time I type wtf when a program fails , I want something nice thrown back at me...

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torlim

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4 Years ago

answered 1 Year ago rryble · Accepted Answer

Look in your /etc/bash.bashrc for the command_not_found_handle function definition.

If you want to remove that behaviour, put this in your .bashrc

[[ $(type -t command_not_found_handle) = "function" ]] && 

  unset -f command_not_found_handle

If you want to customize, you can do

# see http://stackoverflow.com/questions/1203583/how-do-i-rename-a-bash-function

alias_function() {

  eval "${1}() $(declare -f ${2} | sed 1d)"

}



alias_function orig_command_not_found_handle command_not_found_handle 



command_not_found_handle() {

  command=$1

  shift

  args=( "$@" )



  do your stuff before

  orig_command_not_found_handle "$command" "${args[@]}"

  do your stuff after

}