This function returns a string, or NULL on error.
I<The caller must free the returned string after use>.
+=head2 guestfs_df
+
+ char *guestfs_df (guestfs_h *handle);
+
+This command runs the C<df> command to report disk space used.
+
+This command is mostly useful for interactive sessions. It
+is I<not> intended that you try to parse the output string.
+Use C<statvfs> from programs.
+
+This function returns a string, or NULL on error.
+I<The caller must free the returned string after use>.
+
+=head2 guestfs_df_h
+
+ char *guestfs_df_h (guestfs_h *handle);
+
+This command runs the C<df -h> command to report disk space used
+in human-readable format.
+
+This command is mostly useful for interactive sessions. It
+is I<not> intended that you try to parse the output string.
+Use C<statvfs> from programs.
+
+This function returns a string, or NULL on error.
+I<The caller must free the returned string after use>.
+
=head2 guestfs_dmesg
char *guestfs_dmesg (guestfs_h *handle);
This function returns 0 on success or -1 on error.
+=head2 guestfs_du
+
+ int64_t guestfs_du (guestfs_h *handle,
+ const char *path);
+
+This command runs the C<du -s> command to estimate file space
+usage for C<path>.
+
+C<path> can be a file or a directory. If C<path> is a directory
+then the estimate includes the contents of the directory and all
+subdirectories (recursively).
+
+The result is the estimated size in I<kilobytes>
+(ie. units of 1024 bytes).
+
+On error this function returns -1.
+
=head2 guestfs_e2fsck_f
int guestfs_e2fsck_f (guestfs_h *handle,
of somewhere between 2MB and 4MB. To transfer large files you should use
FTP.
+=head2 guestfs_initrd_list
+
+ char **guestfs_initrd_list (guestfs_h *handle,
+ const char *path);
+
+This command lists out files contained in an initrd.
+
+The files are listed without any initial C</> character. The
+files are listed in the order they appear (not necessarily
+alphabetical). Directory names are listed as separate items.
+
+Old Linux kernels (2.4 and earlier) used a compressed ext2
+filesystem as initrd. We I<only> support the newer initramfs
+format (compressed cpio files).
+
+This function returns a NULL-terminated array of strings
+(like L<environ(3)>), or NULL if there was an error.
+I<The caller must free the strings and the array after use>.
+
=head2 guestfs_is_busy
int guestfs_is_busy (guestfs_h *handle);
This function returns 0 on success or -1 on error.
+=head2 guestfs_mount_loop
+
+ int guestfs_mount_loop (guestfs_h *handle,
+ const char *file,
+ const char *mountpoint);
+
+This command lets you mount C<file> (a filesystem image
+in a file) on a mount point. It is entirely equivalent to
+the command C<mount -o loop file mountpoint>.
+
+This function returns 0 on success or -1 on error.
+
=head2 guestfs_mount_options
int guestfs_mount_options (guestfs_h *handle,