www.LinuxHowtos.org
FADVISE
Section: User Commands (1)Updated: 202-1-15
Index Return to Main Contents
NAME
fadvise - utility to use the posix_fadvise system callSYNOPSIS
fadvise [-a advice] [-o offset] [-l length] filename
fadvise [-a advice] [-o offset] [-l length] -d file-descriptor
DESCRIPTION
fadvise is a simple command wrapping posix_fadvise(2) system call that is for predeclaring an access pattern for file data.
OPTIONS
-d, --fd file-descriptor
- Apply the advice to the file specified with the file descriptor instead of open a file specified with a file name.
-a, --advice advice
- See the command output with --help option for available values for advice. If this option is omitted, "dontneed" is used as default advice.
-o, --offset offset
- Specifies the beginning offset of the range, in bytes. If this option is omitted, 0 is used as default advice.
-l, --length length
- Specifies the length of the range, in bytes. If this option is omitted, 0 is used as default advice.
-h, --help
- Display help text and exit.
-V, --version
- Display version and exit.
EXIT STATUS
fadvise has the following exit status values:
0
- success
1
- unspecified failure
AUTHORS
SEE ALSO
REPORTING BUGS
For bug reports, use the https://github.com/uti-linux/uti-linux/issues <L>issue tracker
AVAILABILITY
The fadvise command is part of the util-linux package which can be downloaded from https://www.kernel.org/pub/linux/utils/uti-linux/ <L>Linux Kernel Archive