Difference between revisions of "F$FILE ATTRIBUTES()"
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| GRP || style="text-align:center;" | Integer || Owner group number. | | GRP || style="text-align:center;" | Integer || Owner group number. | ||
|- | |- | ||
− | | JOURNAL_FILE || style="text-align:center;" | String || TRUE if the file is a journal; otherwise FALSE. | + | | JOURNAL_FILE || style="text-align:center;" | String || TRUE if the file is a [[RMS journaling|journal]]; otherwise FALSE. |
|- | |- | ||
| KNOWN || style="text-align:center;" | String || Known file; returns TRUE or FALSE to indicate whether file is installed with the Install utility (INSTALL). However, returns NOSUCHFILE if a file does not exist (for example, the file has been installed but subsequently deleted). | | KNOWN || style="text-align:center;" | String || Known file; returns TRUE or FALSE to indicate whether file is installed with the Install utility (INSTALL). However, returns NOSUCHFILE if a file does not exist (for example, the file has been installed but subsequently deleted). | ||
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RFM = "VAR" | RFM = "VAR" | ||
</pre> | </pre> | ||
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+ | [[Category: Lexical Functions]] |
Revision as of 05:47, 15 January 2019
F$FILE_ATTRIBUTES() is a lexical function that returns attribute information for a specified file.
Contents
Format
F$FILE_ATTRIBUTES (filespec,item)
filespec
Specifies the name of the file about which you are requesting information. You must specify the file name as a character string expression.
You can specify only one file name. Wildcard characters are not allowed.
item
Item | Return type | Information required |
---|---|---|
AI | String | TRUE if after-image (AI) journaling is enabled; FALSE if disabled. |
ALQ | Integer | Allocation quantity. |
BDT | String | Backup date/time. |
BI | String | TRUE if before-image (BI) journaling is enabled; FALSE if disabled. |
BKS | Integer | Bucket size. |
BLS | Integer | Block size. |
CBT | String | TRUE if contiguous-best-try; otherwise FALSE. |
CDT | String | Creation date/time. |
CTG | String | TRUE if contiguous; otherwise FALSE. |
DEQ | Integer | Default extension quantity. |
DID | String | Directory ID string. |
DIRECTORY | String | Returns TRUE or FALSE. Returns TRUE if it is a directory. |
DVI | String | Device name string. |
EDT | String | Expiration date/time. |
EOF | Integer | Number of blocks used. |
ERASE | String | TRUE if a file's contents are erased before a file is deleted; otherwise FALSE. |
FFB | Integer | First free byte. |
FID | String | File ID string. |
FILE_LENGTH_HINT | String | Record count and data byte count in the form ( |
FSZ | Integer | Fixed control area size. |
GBC | Integer | Global buffer count. |
GBC32 | Integer | Enhanced longword version of global buffer count with a per-file maximum size of about 2.1 billion for indexed files. |
GBCFLAGS | String | Per-file management flags for sizing of global buffer cache. Returns PERCENT if global buffer count is expresses as a percent, DEFAULT if global buffer size is determined at runtime by an algorithm using two global buffer SYSGEN parameters (GB_CACHEALLMAX and GB_DEFPERCENT); or NONE if no per-file management flags are enabled for the file. |
GRP | Integer | Owner group number. |
JOURNAL_FILE | String | TRUE if the file is a journal; otherwise FALSE. |
KNOWN | String | Known file; returns TRUE or FALSE to indicate whether file is installed with the Install utility (INSTALL). However, returns NOSUCHFILE if a file does not exist (for example, the file has been installed but subsequently deleted). |
LOCKED | String | TRUE if a file is deaccessed-locked; otherwise FALSE. |
LRL | Integer | Longest record length. |
MBM | Integer | Owner member number. |
MOVE | String | TRUE if movefile operations are enabled; otherwise FALSE. |
MRN | Integer | Maximum record number. |
MRS | Integer | Maximum record size. |
NOA | Integer | Number of areas. |
NOBACKUP | String | FALSE if the file is marked for backup; TRUE if the file is marked NOBACKUP. |
NOK | Integer | Number of keys. |
ORG | String | File organization; returns SEQ, REL, IDX. |
PRESHELVED | String | TRUE if the file is preshelved; otherwise FALSE. |
PRO | String | File protection string. |
PVN | Integer | Prolog version number. |
RAT | String | Record attributes; returns CR, PRN, FTN, "". |
RCK | String | TRUE if read check; otherwise FALSE. |
RDT | String | Revision date/time. |
RFM | String | Record format string; returns the values VAR, FIX, VFC, UDF, STM, STMLF, STMCR. |
RU | String | TRUE if recovery unit (RU) journaling is enabled; returns TRUE or FALSE. |
RVN | Integer | Revision number. |
SHELVABLE | String | TRUE if the file is shelvable; otherwise FALSE. |
SHELVED | String | TRUE if the file is shelved; otherwise FALSE. |
STORED_SEMANTICS | String | ASCII string that represents stored semantics. |
UIC | String | Owner user identification code (UIC) string. |
VERLIMIT | Integer | Version limit number. The value 32767 indicates that no version limit was set. |
WCK | String | TRUE if write check; otherwise FALSE. |
Examples
$ FILE_ORG = F$FILE_ATTRIBUTES("QUEST.DAT","ORG") $ SHOW SYMBOL FILE_ORG FILE_ORG = "SEQ" $ RFM = F$FILE_ATTRIBUTES("KANSAS::USE$:[CARS]SALES.CMD","RFM") $ SHOW SYMBOL RFM RFM = "VAR"