SYS()

From Lianjapedia
Jump to: navigation, search

Purpose

Functions to return various system and miscellaneous information

Syntax

SYS(<expN>)

See Also

ADIR(), CRC32(), DATE(), DAY(), DEFAULT(), DO, INDEXKEY(), KEY(), OS(), PROCNAME(), PROGRAM(), SECS(), SET(), SET TMPDIR, TMPNAM()

Description

The SYS() function returns miscellaneous information depending on <expN>. The arguments and operation of this function are as follows:

Parameter Description
SYS(0) Returns complete host system information
SYS(1) Returns the current system date as a Julian day number in a character string
SYS(2) Returns the number of seconds elapsed since midnight in a character string
SYS(3) Returns a unique filename. This will include the full directory path unless SET TMPNAMPATH is OFF (ON by default)
SYS(5) Returns 'C:'
SYS(6) Returns the current PRINT device as set by the SET PRINTER TO command
SYS(10,d) Returns the numeric day number 'd' as a character string
SYS(11,s) Returns a date or character string 's' as a character type Julian day number
SYS(12) Returns remaining available memory in bytes
SYS(13) Returns the status of the printer as "READY" or "OFF-LINE"
SYS(14,n[,w]) Returns the index expression for index 'n' in workarea 'w'. If 'w' is omitted then the current workarea is used
SYS(16) Returns the name of the currently executing program
SYS(17) Returns the CPU type number
SYS(18) Returns the name of the GET field being entered
SYS(21) Returns the order number of the master index. Note: if the master index is a tag, SYS(21) will always return 1.
SYS(22) Returns the master index: the tagname or single index file name. If the master index is a tag, then SYS(22) returns the tag name in upper case. If the master index is a single index, then SYS(22) returns the index file name in lower case, including the file extension.
SYS(100) Returns the status of the CONSOLE setting as "ON" or "OFF"
SYS(101) Returns the DEVICE setting as "SCREEN" or "PRINT"
SYS(102) Returns the PRINT setting as "ON" or "OFF"
SYS(103) Returns the TALK setting as "ON" or "OFF"
SYS(2000,s[,1]) Returns the name of the first file matching the pattern 's'. If the third parameter is included the next matching file is returned
SYS(2001,s[,1]) Returns the current value of the set option 's'. The optional '1' can be used to return the character setting of certain SET COMMANDS, e.g. ALTERNATE
SYS(2002[,1]) Turns the cursor OFF (sys(2002)) or ON (sys(2002,1))
SYS(2003) Returns the default directory
SYS(2004) Returns the starting directory for the current process
SYS(2005) Returns the currently available resource file
SYS(2007, <expC> [, <expN1> [, <expN2>]]) Returns the CRC32 checksum for <expC>.
SYS(2008 [, <expC> [, <expN>]]) Language compatibility only.
SYS(2010) Return the maximum number of open files for the current user
SYS(2011) Returns the current lock status, no lock is placed on the record by this command
SYS(2015) Returns a unique filename. This will include the full directory path unless SET TMPNAMPATH is OFF (ON by default)
SYS(2017, <expC> [, <expN1> [, <expN2>]]) Returns current record checksum (from Lianja v3.4)
SYS(2019) Returns name and location of current configuration file
SYS(2023) Returns the temporary directory location
SYS(5000) Returns amount of currently allocated physical memory for strings
SYS(5001) Returns amount of memory allocated for strings
SYS(5002) Returns amount of currently allocated memory for indexes
SYS(5003) Returns amount of currently allocated memory for symbol table nodes
SYS(6001) Returns current DO level as a character string

Example

? sys(0)
system=Win32s on Windows NT nodename=unknown version=6.1 machine=MY-PC