Installation directory (referred to hereafter as $(install))

-

/opt/firebird (may vary per distribution)

Configuration files

firebird.conf, databases.conf, etc.

$(install)

Release Notes and other documentation

Various files

$(install)/doc

Firebird server

firebird

$(install)/bin

Command-line tools

isql, gbak, nbackup, gfix, gstat, etc.

$(install)/bin

Plugins (new in Firebird 3)

libEngine12.so, libSrp.so, libudr_engine.so, etc.

$(install)/plugins

Sample database

employee.fdb

$(install)/examples/empbuild

UDF libraries

ib_udf.so, fbudf.so

$(install)/UDF

Additional server-side libraries

libib_util.so

$(install)/lib

Client libraries

libfbclient.so.3.0.n

The usual symlinks (.so.2, .so) are created. Legacy libgds.* symlinks are also installed.

/usr/lib[64]

(actually, the real stuff is in $(install)/lib, but you should use the links in /usr/lib[64])