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3

I recently ran a command at my shell:

# yum whatprovides xdotool

Error: No Matches found

However, my package manager actually has this package:

# yum whatprovides xdotool

xdotool-1:3.20150503.1-7.fc29.x86_64 : Fake keyboard/mouse input

Repo        : @System

Matched from:

Provide    : xdotool = 1:3.20150503.1-7.fc29

The problem is that I somehow entered a non-printable character at the prompt which was invisible to me.

Representing this invisible character with ☐ (the unicode box character), this is what I typed:

yum whatprovides ☐xdotool

But this is what I saw:

yum whatprovides xdotool

Is there a way to tell bash to disallow the user from entering non-printable characters from the prompt? Are there any use cases where someone would actually want to do this?

And is this a failure of my terminal emulator for not providing a visual indicator?

bash terminal terminal-emulator special-characters

share|improve this question

asked yesterday

ZhroZhro

40055 silver badges1616 bronze badges

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  I don't think bash can easily know whether a character will show up visibly on the terminal. I blame this on your terminal emulator.
  
  – Gilles
  yesterday
  

  
  
  
  

add a comment | 

3

I recently ran a command at my shell:

# yum whatprovides xdotool

Error: No Matches found

However, my package manager actually has this package:

# yum whatprovides xdotool

xdotool-1:3.20150503.1-7.fc29.x86_64 : Fake keyboard/mouse input

Repo        : @System

Matched from:

Provide    : xdotool = 1:3.20150503.1-7.fc29

The problem is that I somehow entered a non-printable character at the prompt which was invisible to me.

Representing this invisible character with ☐ (the unicode box character), this is what I typed:

yum whatprovides ☐xdotool

But this is what I saw:

yum whatprovides xdotool

Is there a way to tell bash to disallow the user from entering non-printable characters from the prompt? Are there any use cases where someone would actually want to do this?

And is this a failure of my terminal emulator for not providing a visual indicator?

bash terminal terminal-emulator special-characters

share|improve this question

asked yesterday

ZhroZhro

40055 silver badges1616 bronze badges

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  I don't think bash can easily know whether a character will show up visibly on the terminal. I blame this on your terminal emulator.
  
  – Gilles
  yesterday
  

  
  
  
  

add a comment | 

I recently ran a command at my shell:

# yum whatprovides xdotool

Error: No Matches found

However, my package manager actually has this package:

# yum whatprovides xdotool

xdotool-1:3.20150503.1-7.fc29.x86_64 : Fake keyboard/mouse input

Repo        : @System

Matched from:

Provide    : xdotool = 1:3.20150503.1-7.fc29

The problem is that I somehow entered a non-printable character at the prompt which was invisible to me.

Representing this invisible character with ☐ (the unicode box character), this is what I typed:

yum whatprovides ☐xdotool

But this is what I saw:

yum whatprovides xdotool

Is there a way to tell bash to disallow the user from entering non-printable characters from the prompt? Are there any use cases where someone would actually want to do this?

And is this a failure of my terminal emulator for not providing a visual indicator?

bash terminal terminal-emulator special-characters

share|improve this question

asked yesterday

ZhroZhro

40055 silver badges1616 bronze badges

# yum whatprovides xdotool

Error: No Matches found

# yum whatprovides xdotool

xdotool-1:3.20150503.1-7.fc29.x86_64 : Fake keyboard/mouse input

Repo        : @System

Matched from:

Provide    : xdotool = 1:3.20150503.1-7.fc29

yum whatprovides ☐xdotool

yum whatprovides xdotool

share|improve this question

asked yesterday

ZhroZhro

40055 silver badges1616 bronze badges

share|improve this question

asked yesterday

ZhroZhro

40055 silver badges1616 bronze badges

asked yesterday

ZhroZhro

40055 silver badges1616 bronze badges

asked yesterday

ZhroZhro

40055 silver badges1616 bronze badges