Xmgrace

Copy template file from

/opt/homebrew/Cellar/grace/###/templates/Default.agr

to $HOME/.grace/templates and modify it to your needs.

Single file

Plot first vs second column

xmgrace -block file -bxy 1:2

Plot first vs second, first vs third

xmgrace -block file -bxy 1:2 -bxy 1:3

Plot all columns in file vs first column

xmgrace -nxy file

Multiple files

Plot three graphs from three different files

xmgrace -block file1 -bxy 1:3 -block file2 -bxy 1:3 -block file3 -bxy 1:3

Plot a column from all files

xmgrace -block file* -bxy 1:2

Plot all columns from all files

xmgrace -nxy file*