If i select a variable name... How to find the corresponding value?

Hello,

As you can see i have an input File which contains some data. (Input File = .subvar format)

!file.version=1.35t6! 
! Wage; 

subvargroup.begin ($G_Wk3)   
  subvar(      $_Wk3_l_m,                                     str = ' 15601 ' )               ! [kg] l  
  subvar(      $_Wk3_l_CoG_x,                                 str = ' 0.019 ' ) 
  subvar(      $_Wk3_l_Ixx,                                   str = ' $G_Wk3.$_Wk3_l_m * 2.2 ' )
  subvar(      $_Wk3_l_CoG_y,                                 str = '-0.007 ' ) 
  subvar(      $_Wk3_l_CoG_z,                                 str = ' 1.644 ' ) 
subvargroup.end   ($G_Wk3)

1 Question:

So i want to know the value of

$_Wk3_l_m 

The value is:

15601

But how can i search for it? How to get the right row and column of

15601

and

$_Wk3_l_m 

2 Question:

I want to have the value of $_Wk3_l_Ixx but the get the right value i have to do a short calculation. To get the result i have to read out the value of $_Wk3_l_m and multipicate it with 2.2 then i have my result!

subvar(      $_Wk3_l_Ixx,                                   str = ' $G_Wk3.$_Wk3_l_m * 2.2 ' )

Thank you in advance. Stay at home and take care. Nice regards from Europe.

[KSSV]

strexp

[Billy Jones]

can you help me more ... yes this is the command but how can i use it correctly

[darova]

What about strfind?

[Stephen23]

See other almost identical question (with two working, unaccepted answers):

https://www.mathworks.com/matlabcentral/answers/518487-matlab-select-a-variable-name-and-find-the-corresponding-value