Prerequisites

• make sure you're are using the latest version by csvtk version
• read the usage

Describe your issue

• describe the problem
• provide a reproducible example

Hi, may you consider changing ":" with "_" for the auto generated column headers after running some commands like summary because I thinks it conflicts with other commands when piping the output and I have to correct this with rename .

here is an example

cat test
f1,f2,f3,f4,f5
foo,bar,xyz,1,0
foo,bar2,xyz,1.5,-1
foo,bar2,xyz,3,2
foo,bar,xyz,5,3
foo,bar2,xyz,N/A,4
bar,xyz,abc,NA,2
bar,xyz,abc2,1,-1
bar,xyz,abc,2,0
bar,xyz,abc,1,5
bar,xyz,abc,3,100
bar,xyz2,abc3,2,3

cat test | csvtk summary -g f1,f2  -f f5:median | csvtk sort -k "f5:median":nr
[ERRO] invalid sort type: median}

This however works

cat test | csvtk summary -g f1,f2  -f f5:median | csvtk sort -k 3:nr

• may be you can allow users to choose the header name they want

Thank you

I'm grateful to users who have greatly helped to report bugs and suggested new features.

I may respond to issues or fix bugs quickly, but I usually implement new features periodically (two or more weeks).