PHP Manual

PEAR Manual

Smarty Manual

PostgreSQL

MySQL Manual

Perl Manual

17.16. short options

for convenience there are also single letter command-line option switches available for some parameters. they are described in table 17-1.

table 17-1. short option key

short optionequivalent
-b xshared_buffers = x
-d xlog_min_messages = debugx
-ffsync = off
-h xlisten_addresses = x
-ilisten_addresses = '*'
-k xunix_socket_directory = x
-lssl = on
-n xmax_connections = x
-p xport = x
-fb, -fh, -fi, -fm, -fn, -fs, -ft[a] enable_bitmapscan = off, enable_hashjoin = off, enable_indexscan = off, enable_mergejoin = off, enable_nestloop = off, enable_seqscan = off, enable_tidscan = off
-s[a]log_statement_stats = on
-s x[a] work_mem = x
-tpa, -tpl, -te[a]log_parser_stats = on, log_planner_stats = on, log_executor_stats = on
notes:
a. for historical reasons, these options must be passed to the individual server process via the -o postmaster option, for example,

$ postmaster -o '-s 1024 -s'

or via pgoptions from the client side, as explained above.