The / (root) filesystem contains executables and other files necessary to boot the system.
The /bck directory is used to mount a backup filesystem for restoring files.
The /bin directory contains executables for standard commands and utilities.
The /CD-ROM_1 directory is the mount point for a CD-ROM filesystem.
The /dev directory contains device special files that are used to access hardware devices and pseudo-device drivers.
The /etc directory contains machine-specific configuration files and system administration databases.
The /export directory contains the default root of the exported filesystem tree.
The /home directory contains users' home directories. Because it is desirable to keep the root file system small and not volatile, /home is often mounted as a separate filesystem.
The /installr directory is the mount point for package installation. It is used by the Application Installer.
On partially installed systems, the /isl directory contains results from the installation interview and logs from the installation.
The /lbin directory contains executables local to this system.
The /lib directory contains public libraries, daemons, and architecture-dependent databases.
The /lost+found directory is used by fsck(1M) to save disconnected files and directories.
The /mnt directory is used to mount filesystems for temporary use.
The /OpenServer directory contains special versions of commands and libraries for compatibility with SCO OpenServer applications.
The /opt directory contains files installed from add-on application packages. Because it is desirable to keep the root file system small and not volatile, /opt is often mounted as a separate filesystem.
The /pmd directory contains files used by the license manager.
The /proc directory is the mount point of the proc filesystem which provides information on the system's processes.
The /sbin directory contains executables used for system administration.
The /share directory contains architecture independent files that can be shared.
The /share/lib directory contains architecture independent databases.
The /share/man directory contains sub-directories for online manual pages (if present).
The /stand directory is used as the mount point for the boot filesystem, which contains the stand-alone (bootable) programs and data files necessary for the system boot procedure.
The /system/processor directory contains the mount point for the profs filesystem, which provides information on the system's processors (CPUs).
The /tmp directory contains temporary files. It is normally mounted as an memfs filesystem.
The /u95/bin directory contains special versions of commands for UNIX95 compliance.
The unix file is a symbolic link to the currently running kernel in /stand.
The /usr directory contains a number of system directories, described later.
The /var directory is the mount point of the var filesystem. It contains files that can grow and directories that vary from machine to machine, such as tmp, spool, and mail. The /var filesystem also contains administrative directories such as /var/adm and /var/opt, the latter of which is installed by application packages. In some configurations, /var is a directory rather than a separate filesystem.
This directory contains files with information about views created by the user or system administrator to group a number of vxva objects (icons) together which appear in a view window when it is opened. These files are internal to the VERITAS Visual Administrator®.