gdbmtool --version (return code: 0)
gdbmtool (gdbm) 1.14.1
Copyright © 2011-2017 Free Software Foundation, IncLicense GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
gdbmtool --help (return code: 0)
Usage: gdbmtool [OPTION]... DBFILE
examine and/or modify a GDBM database
-N, --norc do not read .gdbmtoolrc file
-b, --block-size=SIZE set block size
-c, --cache-size=SIZE set cache size
-f, --file=FILE read commands from FILE
-l, --no-lock disable file locking
-m, --no-mmap do not use mmap
-n, --newdb create database
-q, --quiet don't print initial banner
-r, --read-only open database in read-only mode
-s, --synchronize synchronise to disk after each write
-h, --help give this help list
--usage give a short usage message
-V, --version print program version
Mandatory or optional arguments to long options are also mandatory or optional
for any corresponding short options.
Report bugs to <bug-gdbm@gnu.org>.
gdbm home page: <http://www.gnu.org/software/gdbm>