fadvise1
Utility to use the *posix_fadvise*(2) system call
Usage
fadvise [-a
advice]
[-o
offset]
[-l
length]
filename
fadvise [-a
advice]
[-o
offset]
[-l
length]
-d
file-descriptor
Overview
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
--helpoption 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
Releases
2 releases since Debian 13 (Trixie); the text changed 1 time.