Which can get gnarly on Windows, depending how you launched Julia. E.g.
just launching from the Julia executable:
shell> ls
ERROR: could not spawn `ls`: no such file or directory (ENOENT)
in _jl_spawn(::String, ::Array{String,1}, ::Ptr{Void}, ::Base.Process,
::RawFD, ::RawFD, ::RawFD) at .\process.jl:321
in #414 at .\process.jl:478 [inlined]
in setup_stdio(::Base.##414#415{Cmd,Ptr{Void},Base.Process},
::Tuple{RawFD,RawFD,RawFD}) at .\process.jl:466
in #spawn#413(::Nullable{Base.ProcessChain}, ::Function, ::Cmd,
::Tuple{RawFD,RawFD,RawFD}, ::Bool, ::Bool) at .\process.jl:477
in run(::Cmd) at .\process.jl:591
in repl_cmd(::Cmd, ::Base.Terminals.TTYTerminal) at .\client.jl:91
julia>
(It works fine if launched from Git bash)
