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how to automatically get xinput id of keyboard?

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Rich:
Hi GNUser
Those  master  and  slave  messages in the square brackets at the end of each line are creating a lot of unnecessary noise:

--- Code: ---tc@box:~$ xinput --list
â¡ Virtual core pointer                        id=2    [master pointer  (3)]
â   â³ Virtual core XTEST pointer                    id=4    [slave  pointer  (2)]
â   â³ Mouse0                                        id=7    [slave  pointer  (2)]
⣠Virtual core keyboard                       id=3    [master keyboard (2)]
    â³ Virtual core XTEST keyboard                     id=5    [slave  keyboard (3)]
    â³ Keyboard0                                       id=6    [slave  keyboard (3)]
tc@box:~$
--- End code ---

Time to cut them out:

--- Code: ---tc@box:~$ xinput --list | cut -d\[ -f1
â¡ Virtual core pointer                        id=2   
â   â³ Virtual core XTEST pointer                    id=4   
â   â³ Mouse0                                        id=7   
⣠Virtual core keyboard                       id=3   
    â³ Virtual core XTEST keyboard                     id=5   
    â³ Keyboard0                                       id=6   
tc@box:~$
--- End code ---
The  -d\[  sets the field delimiter to  [  and the  -f1  says to output field number 1 (everything before the left square bracket).

Try this:

--- Code: ---tc@box:~$ LANG=C xinput --list | cut -d\[ -f1 | grep -i keyboard | egrep -iv 'virtual|video|button|bus' | egrep -o 'id=[0-9]+' | egrep -o '[0-9]+'
6
tc@box:~$
--- End code ---

Rich:
Hi GNUser
Here's a brief writeup that provides some insight to the various devices listed by  xinput:
https://www.linux.org/threads/cool-tricks-with-xinput-device.10345/

GNUser:
Thank you very much, Rich. Your last suggestion worked on all systems I tested, even on wife's Vaio:


--- Code: ---eileen@vaio:~$ LANG=C xinput --list | cut -d\[ -f1 | grep -i keyboard | egrep -iv 'virtual|video|button|bus' | egrep -o 'id=[0-9]+' | egrep -o '[0-9]+'
12

--- End code ---

Cutting out the slave/master column at far right was key. Very nice. Thank you.

I will look over the link and educate myself.

xor:

--- Quote from: GNUser on September 14, 2019, 07:25:54 PM ---Thank you very much, Rich. Your last suggestion worked on all systems I tested, even on wife's Vaio:


--- Code: ---eileen@vaio:~$ LANG=C xinput --list | cut -d\[ -f1 | grep -i keyboard | egrep -iv 'virtual|video|button|bus' | egrep -o 'id=[0-9]+' | egrep -o '[0-9]+'
12

--- End code ---

Cutting out the slave/master column at far right was key. Very nice. Thank you.

I will look over the link and educate myself.

--- End quote ---

Thanks to this feature; It is nice to have the KMAPS setting of languages other than English set automatically :)

will this be standard in the next TCL version in particular!?

xor:

--- Quote from: GNUser on September 14, 2019, 07:25:54 PM ---Thank you very much, Rich. Your last suggestion worked on all systems I tested, even on wife's Vaio:


--- Code: ---eileen@vaio:~$ LANG=C xinput --list | cut -d\[ -f1 | grep -i keyboard | egrep -iv 'virtual|video|button|bus' | egrep -o 'id=[0-9]+' | egrep -o '[0-9]+'
12

--- End code ---

Cutting out the slave/master column at far right was key. Very nice. Thank you.

I will look over the link and educate myself.

--- End quote ---

for non-English keyboards,
(automatic keyboard recognition feature),
Will there be a new standard feature for TCL !?
I want this feature to be a standard feature.

In my country "Q" keyboard and "F" keyboard are used equally.

automatically localized keyboard settings,
Provides a universal convenience for all local regions! :)

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