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- .\" XXX standard disclaimer belongs here....
- .\" $Header: /private/postgres/ref/unix/RCS/monitor,v 1.14 1992/07/14 05:54:17 ptong Exp $
- .SP MONITOR UNIX 6/14/90
- .XA 1 "Terminal Monitor"
- .uh NAME
- .lp
- monitor \*- run the interactive terminal monitor
- .uh SYNOPSIS
- .lp
- .(l
- \fBmonitor\fP [-h hostname] [-p port] [-t tty_device] [-N] [-T]
- [-c query] [-d path] [-q] [-o options] dbname
- .)l
- .uh DESCRIPTION
- .lp
- The interactive terminal monitor is a simple frontend to \*(PP.
- It enables one to formulate, edit and review queries before
- issuing them to \*(PP.
- If changes must be made,
- a \*(UU editor may be called
- called to edit the
- .b "query buffer" ,
- which the terminal monitor manages.
- The editor used is determined by the value of
- the
- .A EDITOR
- environment variable.
- If
- .A EDITOR
- is not set, then
- .b vi
- is used by default.
- .sp
- The terminal monitor requires that the postmaster be running, and the ports
- (specified with the "-p" option or by the PGPORT environment variable)
- must be identical to those specified to the postmaster.
- .uh "COMMAND OPTIONS"
- .lp
- \fI-h host\fR specifies host machine on which the \*(PP backend
- is running; default is your local machine (localhost).
- .sp
- \fI-p port\fR specifies the well known TCP/IP port used for network
- communication between the terminal monitor and the postmaster.
- .sp
- \fI-t tty_device\fR specifies the path name to the tty device (or regular
- UNIX file) which you want the backend debugging messages to be sent to;
- default is /dev/null.
- \fI-N\fR specifies that query results will be dumped to the screen without
- any attempt at formatting. This is useful in conjunction with the
- .b -c
- option in shell scripts.
- .sp
- \fI-T\fR specifies that attribute names will not be printed - only the
- data itself. This is useful in conjunction with the
- .b -c
- option in shell scripts.
- .sp
- \fI-c query\fR specifies that the monitor is to run one query and exit.
- This is useful for shell scripts, typically in conjunction with the
- .b -N
- and
- .b -T
- options. Examples of shell scripts in the \*(PP distribution using
- .b monitor -c
- are createdb, destroydb, createuser, and destroyuser.
- .sp
- \fI-d path\fR specifies the path name of the file or tty which you want
- the frontend debugging messages to be written to; the default is not
- to generate any debugging messages.
- .sp
- \fI-q\fR specifies that the monitor should do its work quietly.
- By default,
- it prints welcome and exit messages
- and the queries it sends to the backend.
- If the \fI-q\fP flag is used,
- none of this happens.
- .sp
- \fI-o options\fR specifies additonal options for the \*(PP backend.
- This is only intended for use by \*(PP developers.
- .lp
- You may set environment variables to avoid typing the above options.
- See the \fBENVIRONMENT VARIABLES\fR section below.
- .uh "MESSAGES AND PROMPTS"
- .lp
- The terminal monitor gives a variety of messages to keep the user informed
- of the status of the monitor and the query buffer.
- .sp
- When the terminal monitor is executed,
- it gives the current date and time,
- usually followed by the information in the
- .b dayfile
- (files).
- .sp
- The terminal monitor displays two kinds of messages:
- .nf
-
- go The query buffer is empty and the terminal monitor is ready
- for input. Anything typed will be added to the buffer.
-
- * This prompt is typed at the beginning of each line when the
- terminal monitor is waiting for input.
- .sp
- .uh "TERMINAL MONITOR COMMANDS"
- .nf
- .sp
- \\e Enter the editor to edit the query buffer
-
- \\g Submit query buffer to \*(PP for execution
-
- \\h Get on-line help
-
- \\i \fIfilename\fR Include the file filename into the query buffer
-
- \\p Print contents of the query buffer
-
- \\q Exit from the terminal monitor
-
- \\r Reset (clear) the query buffer
-
- \\s Escape to a \*(UU subshell. To return to the
- terminal monitor, type \*(lqexit\*(rq at the shell prompt.
-
- \\t Print current time
-
- \\w \fIfilename\fR Store the query buffer to an external file
-
- \\\\ Produce a single backslash at the current location in query buffer
- .sp
- .uh "ENVIRONMENT VARIABLES"
- .lp
- You may set environment variables to avoid specifying command line
- options. These are as follows:
- .sp
- .(l
- hostname: PGHOST
- port: PGPORT
- tty: PGTTY
- options: PGOPTION
- .)l
- .sp
- .lp
- If PGOPTION is specified, then the options it contains are
- parsed
- .i before
- any command-line options.
- .uh "RETURN VALUE"
- .lp
- When executed with the
- .b -c query
- option
- .i monitor
- returns 0 to the shell on successful query completion, 1 otherwise.
- .sp
- .uh "SEE ALSO"
- .lp
- backend(unix), postmaster(unix), createdb(unix), destroydb(unix),
- createuser(unix), destroyuser(unix).
-