How to get Command history by cursor key in Linux tclsh
You want access to the readline library, you can do that with rlwrap:
$ rlwrap tclshUseful options are -c for file name completion, and -f to add words from a file to the completion list:
$ rlwrap -cf my_complete_file tclshSince you almost always want to use rlwrap, adding a shell alias is useful:
alias tclsh='rlwrap tclsh'