It really depends on what you want to achieve with this shell. If you have a reliable shell you want to piggyback then your approach is as good as mine... (except instead of having a regex for each command, do the UNIX modular design: make some small commands and one regex for a whole group of them)

If you want to enhance a shell ( DOS comes to mind ) you need to decide what to emulate. Make some recursive subs that break a command into parts, emulate pipes "|" by openning things with  open(PRINTER, "| lpr -Plp1") Perl pipe opens, emulate file io ">","<" with... I guess pipe opens again. To run commands you can have a variable with the directory that contains all the executables, upon command submittal you can check whether the typed command is one of those executables and then run it.

My site

In reply to Re: How to write minimal command line interface? by bl0rf
in thread How to write minimal command line interface? by kandelabr

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