отладчик файловой системы ext2 / ext3 / ext4 (ext2/ext3/ext4 file system debugger)
Переменные окружения (Environment variables)
DEBUGFS_PAGER, PAGER
The debugfs program always pipes the output of the some
commands through a pager program. These commands include:
show_super_stats (stats), list_directory (ls),
show_inode_info (stat), list_deleted_inodes (lsdel), and
htree_dump. The specific pager can explicitly specified
by the DEBUGFS_PAGER environment variable, and if it is
not set, by the PAGER environment variable.
Note that since a pager is always used, the less(1) pager
is not particularly appropriate, since it clears the
screen before displaying the output of the command and
clears the output the screen when the pager is exited.
Many users prefer to use the less(1) pager for most
purposes, which is why the DEBUGFS_PAGER environment
variable is available to override the more general PAGER
environment variable.
