On 7/24/19 3:56 AM, Fabien COELHO wrote: > > Hello Andrew, > >> Unfortunately, this isn't portable, as I've just discovered at the cost >> of quite a bit of time. In particular, you can't assume expr is present >> and in the path on Windows. The Windows equivalent would be something >> like: >> >> \setshell two\ >> @set /a c = 1 + :one && echo %c% > > Hmmm... Can we assume that echo is really always there on Windows? If > so, the attached patch does something only with "echo".
Yes, it's built into the cmd processor (as is "set /a", to answer Tom's earlier question about portability - I tested the above back to XP.) echo is much more universal, and I can confirm that the suggested fix works on the Windows test box I'm using. I'll apply and backpatch that. Thanks cheers andrew -- Andrew Dunstan https://www.2ndQuadrant.com PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services
