File$ - Revision history

Laura: /* Comments and Examples */

2014-09-25T17:26:24Z

Comments and Examples

← Older revision		Revision as of 17:26, 25 September 2014
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	00010 OPEN #1:"name="&FILE$(0),DISPLAY,OUTPUT		00010 OPEN #1:"name="&FILE$(0),DISPLAY,OUTPUT

			FILE$(fileno,”HTTPINFO”) returns LOG info for the latest action, important while OPENing DISPLAY files.

	====Related Functions====		====Related Functions====

Laura at 19:33, 21 May 2014

2014-05-21T19:33:57Z

← Older revision		Revision as of 19:33, 21 May 2014
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	File$(N)		File$(<file name>)

	The '''File$(N)''' internal function returns the path and name of file N. When used without parameters, FILE$ returns the name of the file from the last error in an OPEN statement or any other I/O statement.		The '''File$(N)''' internal function returns the path and name of file N. When used without parameters, FILE$ returns the name of the file from the last error in an OPEN statement or any other I/O statement.

John: moved FILE$ to File$ over redirect

2014-02-27T13:10:26Z

moved FILE$ to File$ over redirect

← Older revision	Revision as of 13:10, 27 February 2014
(No difference)

Laura: /* Comments and Examples */

2013-07-22T18:24:25Z

Comments and Examples

← Older revision		Revision as of 18:24, 22 July 2013
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	====Comments and Examples====		====Comments and Examples====

	FILE$(0) returns the [[device name]] for the current [[workstation]]. This function can be used to determine whether a program is running on a [[DOS]] or [[Unix]] / [[Linux]] system. DOS versions will return CON:, whereas Unix / Linux versions will return a string beginning with :/dev/tty. See the [[SYSTEM]] command for a detailed example of using FILE$(0) to increase portability of [[operating system]] dependent SYSTEM commands.		FILE$(0) returns the device name for the current [[workstation]]. This function can be used to determine whether a program is running on a [[DOS]] or [[Unix]] / [[Linux]] system. DOS versions will return CON:, whereas Unix / Linux versions will return a string beginning with :/dev/tty. See the [[SYSTEM]] command for a detailed example of using FILE$(0) to increase portability of [[operating system]] dependent SYSTEM commands.

	FILE$(0) will now be displayed without a leading colon if [[OPTION]] 25 is specified. In [[3.9]], File$(0) displays with a leading colon to signify that it is not a normal data file.		FILE$(0) will now be displayed without a leading colon if [[OPTION]] 25 is specified. In [[3.9]], File$(0) displays with a leading colon to signify that it is not a normal data file.

Laura: /* Comments and Examples */

2013-07-22T18:23:40Z

Comments and Examples

← Older revision		Revision as of 18:23, 22 July 2013
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	====Comments and Examples====		====Comments and Examples====

	FILE$(0) returns the [[device name]] for the current [[workstation]]. This function can be used to determine whether a program is running on a [[DOS]] or [[Unix]] / [[Linux]] system. DOS versions will return CON:, whereas Unix / Linux versions will return a string beginning with :/dev/tty. See the [[SYSTEM]] command for a detailed example of using FILE$(0) to increase portability of [[operating-system]] dependent SYSTEM commands.		FILE$(0) returns the [[device name]] for the current [[workstation]]. This function can be used to determine whether a program is running on a [[DOS]] or [[Unix]] / [[Linux]] system. DOS versions will return CON:, whereas Unix / Linux versions will return a string beginning with :/dev/tty. See the [[SYSTEM]] command for a detailed example of using FILE$(0) to increase portability of [[operating system]] dependent SYSTEM commands.

	FILE$(0) will now be displayed without a leading colon if [[OPTION]] 25 is specified. In [[3.9]], File$(0) displays with a leading colon to signify that it is not a normal data file.		FILE$(0) will now be displayed without a leading colon if [[OPTION]] 25 is specified. In [[3.9]], File$(0) displays with a leading colon to signify that it is not a normal data file.

Mikhail.zheleznov: *

2012-01-24T11:32:26Z

← Older revision		Revision as of 11:32, 24 January 2012
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	For additional information about files, see the following functions:		For additional information about files, see the following functions:
	*[[Exists]]		*[[Exists]]
	*[[File]]		*[[File (internal function)]]
	*[[FileNum]]		*[[FileNum]]
	*[[FreeSp]]		*[[FreeSp]]

Mikhail.zheleznov: *

2012-01-24T11:28:20Z

← Older revision		Revision as of 11:28, 24 January 2012
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	File$(N)		File$(N)

	The '''File$(N)''' [[internal function]] returns the path and name of file N. When used without parameters, FILE$ returns the name of the file from the last error in an OPEN statement or any other I/O statement.		The '''File$(N)''' internal function returns the path and name of file N. When used without parameters, FILE$ returns the name of the file from the last error in an OPEN statement or any other I/O statement.

	====Comments and Examples====		====Comments and Examples====

	FILE$(0) returns the [[device name]] for the current [[workstation]]. This function can be used to determine whether a program is running on a [[DOS]] or [[Unix]] / [[Linux]] system. DOS versions will return CON:, whereas Unix / Linux versions will return a string beginning with :/dev/tty. See the [[SYSTEM]] command for a detailed example of using FILE$(0) to increase portability of [[operating-system]] dependent SYSTEM commands.		FILE$(0) returns the [[device name]] for the current [[workstation]]. This function can be used to determine whether a program is running on a [[DOS]] or [[Unix]] / [[Linux]] system. DOS versions will return CON:, whereas Unix / Linux versions will return a string beginning with :/dev/tty. See the [[SYSTEM]] command for a detailed example of using FILE$(0) to increase portability of [[operating-system]] dependent SYSTEM commands.

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	====Related Functions====		====Related Functions====

	For additional information about files, see the following functions:		For additional information about files, see the following functions:
	*[[Exists]]		*[[Exists]]
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	====Technical Considerations====		====Technical Considerations====

	# If the current error was not an I/O error, FILE$ will be irrelevant because it contains information about a previous error.		# If the current error was not an I/O error, FILE$ will be irrelevant because it contains information about a previous error.

Mikhail.zheleznov: moved File$ to FILE$

2012-01-17T10:03:09Z

moved File$ to FILE$

← Older revision	Revision as of 10:03, 17 January 2012
(No difference)

Mikhail.zheleznov: 1 revision

2012-01-15T14:11:49Z

1 revision

New page

File$(N)

The '''File$(N)''' [[internal function]] returns the path and name of file N. When used without parameters, FILE$ returns the name of the file from the last error in an OPEN statement or any other I/O statement.

====Comments and Examples====
FILE$(0) returns the [[device name]] for the current [[workstation]]. This function can be used to determine whether a program is running on a [[DOS]] or [[Unix]] / [[Linux]] system. DOS versions will return CON:, whereas Unix / Linux versions will return a string beginning with :/dev/tty. See the [[SYSTEM]] command for a detailed example of using FILE$(0) to increase portability of [[operating-system]] dependent SYSTEM commands.

FILE$(0) will now be displayed without a leading colon if [[OPTION]] 25 is specified. In [[3.9]], File$(0) displays with a leading colon to signify that it is not a normal data file.

;As in the following example, the string returned by FILE$ may be used as a valid file name:

00010 OPEN #1:"name="&FILE$(0),DISPLAY,OUTPUT

====Related Functions====
For additional information about files, see the following functions:
*[[Exists]]
*[[File]]
*[[FileNum]]
*[[FreeSp]]
*[[KLn]]
*[[KPs]]
*[[KRec]]
*[[LRec]]
*[[Rec]]
*[[RLn]]

====Technical Considerations====
# If the current error was not an I/O error, FILE$ will be irrelevant because it contains information about a previous error.

<noinclude>
[[Category:Internal Functions]]
</noinclude>