파일시스템 디버거 debugfs전용명령어의 사용도움말 보기

[root@su250 sulinux]# debugfs

debugfs 1.41.3 (12-Oct-2008)

debugfs: 

debugfs:  help

Available debugfs requests:

show_debugfs_params, params     Show debugfs parameters

open_filesys, open       Open a filesystem

close_filesys, close     Close the filesystem

feature, features        Set/print superblock features

dirty_filesys, dirty     Mark the filesystem as dirty

init_filesys             Initalize a filesystem (DESTROYS DATA)

show_super_stats, stats  Show superblock statistics

ncheck                   Do inode->name translation

icheck                   Do block->inode translation

change_root_directory, chroot    Change root directory

change_working_directory, cd     Change working directory

list_directory, ls       List directory

show_inode_info, stat    Show inode information

link, ln                 Create directory link

unlink                   Delete a directory link

mkdir                    Create a directory

rmdir                    Remove a directory

rm                       Remove a file (unlink and kill_file, if appropriate)

kill_file                Deallocate an inode and its blocks

clri                     Clear an inode's contents

freei                    Clear an inode's in-use flag

seti                     Set an inode's in-use flag

testi                    Test an inode's in-use flag

freeb                    Clear a block's in-use flag

setb                     Set a block's in-use flag

testb                    Test a block's in-use flag

modify_inode, mi         Modify an inode by structure

find_free_block, ffb     Find free block(s)

find_free_inode, ffi     Find free inode(s)

print_working_directory, pwd      Print current working directory

expand_dir, expand       Expand directory

mknod                    Create a special file

list_deleted_inodes, lsdel     List deleted inodes

undelete, undel          Undelete file

write                    Copy a file from your native filesystem

dump_inode, dump         Dump an inode out to a file

cat                      Dump an inode out to stdout

lcd                      Change the current directory on your native filesystem

rdump                    Recursively dump a directory to the native filesystem

set_super_value, ssv     Set superblock value

set_inode_field, sif     Set inode field

set_block_group, set_bg  Set block group descriptor field

logdump                  Dump the contents of the journal

htree_dump, htree        Dump a hash-indexed directory

dx_hash, hash            Calculate the directory hash of a filename

dirsearch                Search a directory for a particular filename

bmap                     Calculate the logical->physical block mapping for an inode

imap                     Calculate the location of an inode

dump_unused              Dump unused blocks

set_current_time         Set current time to use when setting filesystme fields

supported_features       Print features supported by this version of e2fsprogs

help                     Display info on command or topic.

list_requests, lr, ?     List available commands.

quit, q                  Leave the subsystem.

debugfs: 

debugfs: