@@ -45,17 +45,18 @@ static inline int ioctl(int fd, int define, void *arg) {
return 0; }
static void print_usage(void)
{
- printf("usage: btrfsctl [ -d file|dir] [ -s snap_name subvol|tree ]\n");
- printf(" [-r size] [-A device] [-a] [-c] [-D dir .]\n");
+ printf("usage: btrfsctl [-d file|dir] [-s snap_name subvol]\n");
+ printf(" [-S vol_name dir] [-a] [-r size subvol]\n");
+ printf(" [-A device] [-c subvol] [-D name subvol]\n");
printf("\t-d filename: defragments one file\n");
printf("\t-d directory: defragments the entire Btree\n");
- printf("\t-s snap_name dir: creates a new snapshot of dir\n");
- printf("\t-S subvol_name dir: creates a new subvolume\n");
- printf("\t-r [+-]size[gkm]: resize the FS by size amount\n");
- printf("\t-A device: scans the device file for a Btrfs filesystem\n");
+ printf("\t-s snap_name subvol: creates a new snapshot of subvol\n");
+ printf("\t-S subvol_name dir: creates a new subvolume in dir\n");
printf("\t-a: scans all devices for Btrfs filesystems\n");
- printf("\t-c: forces a single FS sync\n");
- printf("\t-D: delete snapshot\n");
+ printf("\t-r [+-]size[gkm] subvol: resize the FS by size amount\n");
+ printf("\t-A device: scans the device file for a Btrfs filesystem\n");
+ printf("\t-c subvol: forces a single FS sync\n");
+ printf("\t-D name dir: delete a snapshot or subvolume of dir\n");
printf("%s\n", BTRFS_BUILD_VERSION);
exit(1);