Temporarily stops program execution.
Syntax
- pause-code
is a character constant or a list of up to 5 digits.
Description
The PAUSE
statement suspends program execution and prints a message, depending
on whether digits, characters, or nothing has been specified in
the PAUSE statement:
If digits, the message "PAUSE
digits" is written to standard
error.
If a character expression, the message "PAUSE
character-expression" is written
to standard error.
If nothing appears after PAUSE,
the word "PAUSE"
is written to standard error.
After displaying the appropriate message, the PAUSE
statement writes to standard output one of two messages that give
information on resuming the program. If the standard input device
is a terminal, the message is:
To resume program execution, type GO. |
At this point the program is suspended and remains so until
the operator types the word GO
and presses the Return key. The program will terminate if anything
other than GO
is entered.
If the standard input device is other than a terminal, the
message is:
To resume execution, execute a kill -15 pid & |
where pid is the unique process
identification number of the suspended program. This command can
be issued at any terminal at which the user is logged in.
Examples
! Write "PAUSE 7777" to standard error
PAUSE 7777
! Write "PAUSE MOUNT TAPE" to standard error
PAUSE "MOUNT TAPE"
! Write "PAUSE" to standard error
PAUSE |
Related statements
STOP
Related concepts
For information about flow control statements, see “Flow control statements”.
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