List of Files and Directories Subroutines

AIX Version 4.3 General Programming Concepts: Writing and Debugging Programs

List of Files and Directories Subroutines

The system provides subroutines for:

Controlling Files

access, accessx, or faccessx	Determines accessibility of a file.
fclear	Clears space in a file.
fcntl, dup, or dup2	Controls 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
	Accesses utmp file entries.
getutid_r, getutline_r, pututline_r, setutent_r, endutent_r, or utmpname_r
	Accesses utmp file entries.
Moves the read-write pointer in an open file.
lockfx, lockf, or flock	Controls open file descriptor locks.
mknod or mkfifo	Creates regular, FIFO, or special files.
mktemp or mkstemp	Constructs a unique file name.
open, openx, or creat	Returns 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	Retrieves 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
	Gets file status.
tmpfile	Creates a temporary file.
tmpnam or tempnam	Constructs a name for a temporary file.
truncate, ftruncate	Makes a file shorter.
umask	Gets and sets the value of the file creation mask.
utimes or utime	Sets file access or modification time.
write, writex, writev, writevx	Writes to a file or device.
Error Codes for Services that Require Path-Name Resolution

Working with Directories

chdir	Changes the current working directory.
chroot	Changes the effective root directory.
getwd, getcwd	Gets 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	Scans 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.

Manipulating File Systems

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
	Gets information about a file system.
getfsent_r, getfsspec_r, getfsfile_r, getfstype_r, setfsent_r, or endfsent_r
	Gets information about a file system.
getvfsent, getvfsbytype, getvfsbyname, getvfsbyflag, setvfsent, endvfsent
	Gets information about virtual file system entries.
mnctl	Returns mount status information.
quotactl	Manipulates disk quotas.
statfs, fstatfs	Gets 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	Removes a virtual file system from the file tree.

Related Information

Files, Directories, and File Systems for Programmers helps you navigate these topics.

Subroutines Overview.

Header Files Overview.