Displaying available space on a file system (df command)
Use the df command to display information about total space and available space on a file system. The FileSystem parameter specifies the name of the device on which the file system resides, the directory on which the file system is mounted, or the relative path name of a file system.
If you do not specify the FileSystem parameter, the df command displays information for all currently mounted file systems. If a file or directory is specified, then the df command displays information for the file system on which it resides.
Normally, the df command uses free counts contained in the superblock. Under certain exceptional conditions, these counts might be in error. For example, if a file system is being actively modified when the df command is running, the free count might not be accurate.
- To display information about all mounted file systems, type the following:
If your system is configured so the /, /usr, /site, and /usr/venus directories reside in separate file systems, the output from the df command is similar to the following:
Filesystem 512-blocks free %used Iused %Iused Mounted on /dev/hd4 20480 13780 32% 805 13% / /dev/hd2 385024 15772 95% 27715 28% /usr /dev/hd9var 40960 38988 4% 115 1% /var /dev/hd3 20480 18972 7% 81 1% /tmp /dev/hd1 4096 3724 9% 44 4% /home
- To display available space on the file system in which your current directory
resides, type the following: