mutate2 - Column name with special charactors taken as a variable

[MostafaYA]

mutate2 - Column name with special charactors taken as a variable

[shenwei356]

Don't leave spaces in ${}, and note the quotes.

$ cat test.tsv \
    | csvtk mutate2 -t -e "\$f1 + '_' + \$ref + '_' +  \$f2 + '_' + \${$sample}"  -n position \
    | csvtk pretty -t
Gene_position   ref   IP-e-D-1-9   f1     f2   position
-------------   ---   ----------   ----   --   -----------
gyrA_43         V     V            gyrA   43   gyrA_V_43_V
gyrA_71         D     D            gyrA   71   gyrA_D_71_D

[MostafaYA]

thanks!!