| access,
accessx, or faccessx |
Determine accessibility of a file |
| fclear |
Clears space in a file |
| fcntl,
dup, or dup2 |
Control open file descriptors |
| fsync |
Writes changes in a file to permanent storage |
| getenv |
Returns the value of an environment variable |
| getutent, getutid, getutline,
putuline, setutent, endutent, or utmpname |
| |
Access utmp file entries |
| getutid_r, getutline_r, pututline_r, setutent_r,
endutent_r, or utmpname_r |
| |
Access utmp file entries |
|
or llseek |
Move the read-write pointer in an open file |
| lockfx, lockf, or flock
|
Controls open file descriptor locks |
| mknod or
mkfifo
|
Create regular, FIFO, or special files |
| mktemp or
mkstemp
|
Construct a unique file name |
| open,
openx, or creat
|
Return a file descriptor and creates files |
| pclose
|
Closes an open pipe |
| pipe
|
Creates an interprocess channel |
| popen
|
Initiates a pipe to a process |
| pathconf,
fpathconf
|
Retrieve file implementation characteristics |
| putenv
|
Sets an environment variable |
| read,
readx, readv, readvx
|
Read from a file or device |
| rename
|
Renames directory or file within a file system |
| statx, stat, fstatx, fstat,
fullstat, fullstat |
| |
Get file status |
| tmpfile
|
Creates a temporary file |
| tmpnam or
tempnam
|
Construct a name for a temporary file |
| truncate,
ftruncate
|
Make a file shorter |
| umask
|
Gets and sets the value of the file creation mask |
| utimes or
utime
|
Set file access or modification time |
| write,
writex, writev, writevx
|
Write to a file or device |
| chdir
|
Changes the current working directory |
| chroot
|
Changes the effective root directory |
| getwd, getcwd
|
Get the current directory path name |
| glob
|
Generates a list of path names to accessible files |
| globfree
|
Frees all memory associated with the pglob parameter |
| link
|
Creates additional directory entry for an existing file |
| mkdir
|
Creates a directory |
| opendir, readdir, telldir,
seekdir, rewinddir, closedir |
| |
Performs operations on directories |
| readdir_r |
Reads a directory |
| rmdir
|
Removes a directory |
| scandir,
alphasort
|
Scan a directory |
| readlink
|
Reads the volume of a symbolic link |
| remove
|
Makes a file inaccessible by specified name |
| symlink
|
Creates a symbolic link to a file |
| unlink
|
Removes a directory entry |
| confstr
|
Determines the current value of a specified system variable defined by a string |
| fscntl
|
Manipulates file system control operations |
| getfsent, getfsspec, getfsfile,
getfstype, setfsent, or endfsent |
| |
Get information about a file system |
| getfsent_r,
getfsspec_r, getfsfile_r, getfstype_r, setfsent_r, or endfsent_r |
| |
Get information about a file system |
| getvfsent, getvfsbytype,
getvfsbyname, getvfsbyflag, setvfsent, endvfsent |
| |
Get information about virtual file system entries |
| mnctl
|
Returns mount status information |
| quotactl
|
Manipulates disk quotas |
| statfs,
fstatfs
|
Get the status of a file's file system |
| sysconf
|
Reports current value of system limits or options |
| sync
|
Updates all file systems information to disk |
| umask
|
Gets and sets the value of the file creation mask |
| vmount
|
Mounts a file system |
| umount,
uvmount
|
Remove a virtual file system from the file tree |