[RndTbl] another shell thing I've forgotten...

[Adam Thompson]

Inside a shell script, I want to start a persistent mysql client process and feed it commands one by one.

I’d like to use a named pipe, but the only way I’ve found to do it so far is with a subshell, by putting 99% of the script inside the subshell and piping the subsell’s entire output to mysql.  While this more-or-less works, it’s very much not ideal.

If I use a named pipe, every time I echo something to that pipe (e.g. “echo INSERT INTO… > /tmp/mypipe”), mysql immediately exits upon reaching EOF, so only the very first command gets executed.

I recall posting a way to accomplish this with psql & inetd a year or two ago, but I don’t want to use inetd – this *must* be entirely self-contained within a single shell script.  Also I can’t figure out a way to tell mysql to ignore EOF on STDIN and to immediately reopen it.

 

Anyone have any better ideas?

 

Thanks,

-Adam

 

-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://www.muug.mb.ca/pipermail/roundtable/attachments/20100731/c832a71b/attachment.html