module File::Constants
File::Constants provides file-related constants. All possible file constants are listed in the documentation but they may not all be present on your platform.
If the underlying platform doesn't define a constant the corresponding Ruby constant is not defined.
Your platform documentations (e.g. man open(2)) may describe more detailed information.
Constants
- APPEND
-
append on each write
- BINARY
-
disable line code conversion
- CREAT
-
create file if it does not exist
- DIRECT
-
Try to minimize cache effects of the I/O to and from this file.
- DSYNC
-
any write operation perform synchronously except some meta data
- EXCL
-
error if CREAT and the file exists
- FNM_CASEFOLD
-
Makes File.fnmatch patterns case insensitive (but not Dir.glob patterns).
- FNM_DOTMATCH
-
The '*' wildcard matches filenames starting with “.” in File.fnmatch and Dir.glob patterns
- FNM_EXTGLOB
-
Allows file globbing through “{a,b}” in File.fnmatch patterns.
- FNM_NOESCAPE
-
Disables escapes in File.fnmatch and Dir.glob patterns
- FNM_PATHNAME
-
Wildcards in File.fnmatch and Dir.glob patterns do not match directory separators
- FNM_SHORTNAME
-
Makes patterns to match short names if existing. Valid only on Microsoft Windows.
- FNM_SYSCASE
-
System default case insensitiveness, equals to FNM_CASEFOLD or 0.
- LOCK_EX
-
exclusive lock. see File#flock
- LOCK_NB
-
non-blocking lock. used with LOCK_SH or LOCK_EX. see File#flock
- LOCK_SH
-
shared lock. see File#flock
- LOCK_UN
-
unlock. see File#flock
- NOATIME
-
do not change atime
- NOCTTY
-
not to make opened IO the controlling terminal device
- NOFOLLOW
-
do not follow symlinks
- NONBLOCK
-
do not block on open or for data to become available
- NULL
-
Name of the null device
- RDONLY
-
open for reading only
- RDWR
-
open for reading and writing
- RSYNC
-
any read operation perform synchronously. used with SYNC or DSYNC.
- SHARE_DELETE
-
can delete opened file
- SYNC
-
any write operation perform synchronously
- TMPFILE
-
Create an unnamed temporary file
- TRUNC
-
truncate size to 0
- WRONLY
-
open for writing only
Ruby Core © 1993–2017 Yukihiro Matsumoto
Licensed under the Ruby License.
Ruby Standard Library © contributors
Licensed under their own licenses.