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From: Ron Johnson <[email protected]>
To: pgsql-general <[email protected]>
Subject: psql and regex not like
Date: Thu, 6 Mar 2025 04:37:56 -0500
Message-ID: <CANzqJaCmmqNjSNitxWPekwM7mQesZCfAdXjOprKao8Ted35E-w@mail.gmail.com> (raw)

This statement runs great from the psql prompt.  Does exactly what I want.
select datname from pg_database WHERE datname !~ 'template|postgres' ORDER
BY datname;

But it doesn't work so well from the bash prompt.  Not escaping the "!"
generates a bunch of garbage, while escaping throws an sql syntax error.

psql -Xc "select datname from pg_database WHERE datname \!~
'template|postgres' ORDER BY datname;"
ERROR:  syntax error at or near "\"

What's the magic syntax?

(Yes, I could create a view and then query the view, but I'm going to be
running this remotely against dozens of servers, so I don't want to have to
create dozens of views, then need to recreate them every time I want to
change the query.)

-- 
Death to <Redacted>, and butter sauce.
Don't boil me, I'm still alive.
<Redacted> lobster!


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