Re: Unportable use of uname in pg_upgrade test script - Mailing list pgsql-hackers

Andrew Dunstan <andrew@dunslane.net> writes:
> The trouble with uname -s is that its output is a bit variable. I think 
> this will work:

>      testhost=`uname -a | sed 's/.* //'`

What do you mean by "a bit variable"?  And why would that fix it?  The
output of -a is *defined* to be the same as -s followed by other stuff.
The reference page I'm looking at also points out that the -s string
can contain embedded blanks.
        regards, tom lane