Linux ip-172-31-23-187 5.15.0-1084-aws #91~20.04.1-Ubuntu SMP Fri May 2 07:00:04 UTC 2025 aarch64
Apache/2.4.41 (Ubuntu)
: 172.31.23.187 | : 172.31.80.121
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usr /
sbin /
[ HOME SHELL ]
Name
Size
Permission
Action
ModemManager
1.78
MB
-rwxr-xr-x
a2disconf
15.89
KB
-rwxr-xr-x
a2dismod
15.89
KB
-rwxr-xr-x
a2dissite
15.89
KB
-rwxr-xr-x
a2enconf
15.89
KB
-rwxr-xr-x
a2enmod
15.89
KB
-rwxr-xr-x
a2ensite
15.89
KB
-rwxr-xr-x
a2query
9.64
KB
-rwxr-xr-x
aa-remove-unknown
3
KB
-rwxr-xr-x
aa-status
8.63
KB
-rwxr-xr-x
aa-teardown
139
B
-rwxr-xr-x
accessdb
10.15
KB
-rwxr-xr-x
add-shell
860
B
-rwxr-xr-x
addgnupghome
3
KB
-rwxr-xr-x
addgroup
36.9
KB
-rwxr-xr-x
adduser
36.9
KB
-rwxr-xr-x
agetty
59.15
KB
-rwxr-xr-x
apache2
699.64
KB
-rwxr-xr-x
apache2ctl
7.06
KB
-rwxr-xr-x
apachectl
7.06
KB
-rwxr-xr-x
apparmor_parser
1.4
MB
-rwxr-xr-x
apparmor_status
8.63
KB
-rwxr-xr-x
applygnupgdefaults
2.17
KB
-rwxr-xr-x
arp
65.01
KB
-rwxr-xr-x
arpd
70.05
KB
-rwxr-xr-x
arptables
207
KB
-rwxr-xr-x
arptables-nft
207
KB
-rwxr-xr-x
arptables-nft-restore
207
KB
-rwxr-xr-x
arptables-nft-save
207
KB
-rwxr-xr-x
arptables-restore
207
KB
-rwxr-xr-x
arptables-save
207
KB
-rwxr-xr-x
atd
25.95
KB
-rwxr-xr-x
badblocks
26.1
KB
-rwxr-xr-x
bcache-super-show
13.93
KB
-rwxr-xr-x
blkdeactivate
14.49
KB
-rwxr-xr-x
blkdiscard
26.01
KB
-rwxr-xr-x
blkid
114.04
KB
-rwxr-xr-x
blkzone
66.01
KB
-rwxr-xr-x
blockdev
58.01
KB
-rwxr-xr-x
bridge
102.07
KB
-rwxr-xr-x
cache_check
1.2
MB
-rwxr-xr-x
cache_dump
1.2
MB
-rwxr-xr-x
cache_metadata_size
1.2
MB
-rwxr-xr-x
cache_repair
1.2
MB
-rwxr-xr-x
cache_restore
1.2
MB
-rwxr-xr-x
cache_writeback
1.2
MB
-rwxr-xr-x
capsh
26.09
KB
-rwxr-xr-x
cfdisk
94.35
KB
-rwxr-xr-x
cgdisk
186.26
KB
-rwxr-xr-x
chcpu
42.01
KB
-rwxr-xr-x
check_forensic
952
B
-rwxr-xr-x
chgpasswd
61.83
KB
-rwxr-xr-x
chmem
58.01
KB
-rwxr-xr-x
chpasswd
57.84
KB
-rwxr-xr-x
chroot
38.22
KB
-rwxr-xr-x
cpgr
59.88
KB
-rwxr-xr-x
cppw
59.88
KB
-rwxr-xr-x
cron
50.35
KB
-rwxr-xr-x
cryptdisks_start
1.51
KB
-rwxr-xr-x
cryptdisks_stop
844
B
-rwxr-xr-x
cryptsetup
127.27
KB
-rwxr-xr-x
cryptsetup-reencrypt
97.09
KB
-rwxr-xr-x
ctrlaltdel
34.01
KB
-rwxr-xr-x
debugfs
225.52
KB
-rwxr-xr-x
delgroup
16.11
KB
-rwxr-xr-x
deluser
16.11
KB
-rwxr-xr-x
depmod
162.18
KB
-rwxr-xr-x
devlink
146.23
KB
-rwxr-xr-x
dhclient
508.59
KB
-rwxr-xr-x
dhclient-script
15.92
KB
-rwxr-xr-x
dmeventd
46.03
KB
-rwxr-xr-x
dmidecode
110.57
KB
-rwxr-xr-x
dmsetup
178.64
KB
-rwxr-xr-x
dmstats
178.64
KB
-rwxr-xr-x
doc_loadbios
9.93
KB
-rwxr-xr-x
docfdisk
13.93
KB
-rwxr-xr-x
dosfsck
53.94
KB
-rwxr-xr-x
dosfslabel
53.94
KB
-rwxr-xr-x
dpkg-preconfigure
3.58
KB
-rwxr-xr-x
dpkg-reconfigure
4.34
KB
-rwxr-xr-x
dumpe2fs
26.09
KB
-rwxr-xr-x
e2freefrag
14.09
KB
-rwxr-xr-x
e2fsck
314.91
KB
-rwxr-xr-x
e2image
34.09
KB
-rwxr-xr-x
e2label
102.3
KB
-rwxr-xr-x
e2mmpstatus
26.09
KB
-rwxr-xr-x
e2scrub
7.13
KB
-rwxr-xr-x
e2scrub_all
5.27
KB
-rwxr-xr-x
e2undo
18.09
KB
-rwxr-xr-x
e4crypt
22.16
KB
-rwxr-xr-x
e4defrag
26.09
KB
-rwxr-xr-x
ebtables
207
KB
-rwxr-xr-x
ebtables-nft
207
KB
-rwxr-xr-x
ebtables-nft-restore
207
KB
-rwxr-xr-x
ebtables-nft-save
207
KB
-rwxr-xr-x
ebtables-restore
207
KB
-rwxr-xr-x
ebtables-save
207
KB
-rwxr-xr-x
era_check
1.2
MB
-rwxr-xr-x
era_dump
1.2
MB
-rwxr-xr-x
era_invalidate
1.2
MB
-rwxr-xr-x
era_restore
1.2
MB
-rwxr-xr-x
ethtool
362.81
KB
-rwxr-xr-x
faillock
13.93
KB
-rwxr-xr-x
fatlabel
53.94
KB
-rwxr-xr-x
fdformat
30.01
KB
-rwxr-xr-x
fdisk
146.04
KB
-rwxr-xr-x
filefrag
14.11
KB
-rwxr-xr-x
findfs
10.01
KB
-rwxr-xr-x
fixparts
62.26
KB
-rwxr-xr-x
flash-kernel
858
B
-rwxr-xr-x
flash_erase
38.01
KB
-rwxr-xr-x
flash_eraseall
150
B
-rwxr-xr-x
flash_lock
10.01
KB
-rwxr-xr-x
flash_otp_dump
9.93
KB
-rwxr-xr-x
flash_otp_info
9.93
KB
-rwxr-xr-x
flash_otp_lock
9.93
KB
-rwxr-xr-x
flash_otp_write
9.93
KB
-rwxr-xr-x
flash_unlock
10.01
KB
-rwxr-xr-x
flashcp
14.02
KB
-rwxr-xr-x
fsadm
23.54
KB
-rwxr-xr-x
fsck
46.04
KB
-rwxr-xr-x
fsck.btrfs
1.16
KB
-rwxr-xr-x
fsck.cramfs
38.04
KB
-rwxr-xr-x
fsck.ext2
314.91
KB
-rwxr-xr-x
fsck.ext3
314.91
KB
-rwxr-xr-x
fsck.ext4
314.91
KB
-rwxr-xr-x
fsck.fat
53.94
KB
-rwxr-xr-x
fsck.minix
118.04
KB
-rwxr-xr-x
fsck.msdos
53.94
KB
-rwxr-xr-x
fsck.vfat
53.94
KB
-rwxr-xr-x
fsck.xfs
1.92
KB
-rwxr-xr-x
fsfreeze
14.01
KB
-rwxr-xr-x
fstab-decode
6.09
KB
-rwxr-xr-x
fstrim
66.01
KB
-rwxr-xr-x
ftl_check
10.01
KB
-rwxr-xr-x
ftl_format
14.01
KB
-rwxr-xr-x
gdisk
194.26
KB
-rwxr-xr-x
genl
78.05
KB
-rwxr-xr-x
getcap
10.09
KB
-rwxr-xr-x
getpcaps
10.09
KB
-rwxr-xr-x
getty
59.15
KB
-rwxr-xr-x
groupadd
82.43
KB
-rwxr-xr-x
groupdel
78.25
KB
-rwxr-xr-x
groupmems
61.86
KB
-rwxr-xr-x
groupmod
86.34
KB
-rwxr-xr-x
grpck
57.8
KB
-rwxr-xr-x
grpconv
53.69
KB
-rwxr-xr-x
grpunconv
53.69
KB
-rwxr-xr-x
grub-install
1.07
MB
-rwxr-xr-x
grub-macbless
863.2
KB
-rwxr-xr-x
grub-mkconfig
8.54
KB
-rwxr-xr-x
grub-mkdevicemap
211.31
KB
-rwxr-xr-x
grub-probe
875.45
KB
-rwxr-xr-x
grub-reboot
4.73
KB
-rwxr-xr-x
grub-set-default
3.47
KB
-rwxr-xr-x
halt
944.84
KB
-rwxr-xr-x
hdparm
128.07
KB
-rwxr-xr-x
httxt2dbm
9.93
KB
-rwxr-xr-x
hwclock
90.06
KB
-rwxr-xr-x
iconvconfig
26.14
KB
-rwxr-xr-x
ifconfig
80.83
KB
-rwxr-xr-x
init
1.48
MB
-rwxr-xr-x
insmod
162.18
KB
-rwxr-xr-x
installkernel
2.58
KB
-rwxr-xr-x
integritysetup
51.97
KB
-rwxr-xr-x
invoke-rc.d
16.64
KB
-rwxr-xr-x
ip
600.15
KB
-rwxr-xr-x
ip6tables
92.71
KB
-rwxr-xr-x
ip6tables-apply
6.89
KB
-rwxr-xr-x
ip6tables-legacy
92.71
KB
-rwxr-xr-x
ip6tables-legacy-restore
92.71
KB
-rwxr-xr-x
ip6tables-legacy-save
92.71
KB
-rwxr-xr-x
ip6tables-nft
207
KB
-rwxr-xr-x
ip6tables-nft-restore
207
KB
-rwxr-xr-x
ip6tables-nft-save
207
KB
-rwxr-xr-x
ip6tables-restore
92.71
KB
-rwxr-xr-x
ip6tables-restore-translate
207
KB
-rwxr-xr-x
ip6tables-save
92.71
KB
-rwxr-xr-x
ip6tables-translate
207
KB
-rwxr-xr-x
ipmaddr
17.93
KB
-rwxr-xr-x
iptables
92.71
KB
-rwxr-xr-x
iptables-apply
6.89
KB
-rwxr-xr-x
iptables-legacy
92.71
KB
-rwxr-xr-x
iptables-legacy-restore
92.71
KB
-rwxr-xr-x
iptables-legacy-save
92.71
KB
-rwxr-xr-x
iptables-nft
207
KB
-rwxr-xr-x
iptables-nft-restore
207
KB
-rwxr-xr-x
iptables-nft-save
207
KB
-rwxr-xr-x
iptables-restore
92.71
KB
-rwxr-xr-x
iptables-restore-translate
207
KB
-rwxr-xr-x
iptables-save
92.71
KB
-rwxr-xr-x
iptables-translate
207
KB
-rwxr-xr-x
iptunnel
21.93
KB
-rwxr-xr-x
irqbalance
79.13
KB
-rwxr-xr-x
irqbalance-ui
34.18
KB
-rwxr-xr-x
iscsi-iname
13.93
KB
-rwxr-xr-x
iscsi_discovery
5.16
KB
-rwxr-xr-x
iscsiadm
369.8
KB
-rwxr-xr-x
iscsid
381.95
KB
-rwxr-xr-x
iscsistart
345.94
KB
-rwxr-xr-x
isosize
22.01
KB
-rwxr-xr-x
jffs2dump
26.01
KB
-rwxr-xr-x
jffs2reader
18.03
KB
-rwxr-xr-x
kbdrate
13.93
KB
-rwxr-xr-x
killall5
22.21
KB
-rwxr-xr-x
kpartx
41.95
KB
-rwxr-xr-x
ldattach
30.01
KB
-rwxr-xr-x
ldconfig
387
B
-rwxr-xr-x
ldconfig.real
602.84
KB
-rwxr-xr-x
locale-gen
4.3
KB
-rwxr-xr-x
logrotate
74.02
KB
-rwxr-xr-x
logsave
13.94
KB
-rwxr-xr-x
losetup
106.11
KB
-rwxr-xr-x
lsmod
162.18
KB
-rwxr-xr-x
lsmtd
66.6
KB
-rwxr-xr-x
luksformat
3.32
KB
-rwxr-xr-x
lvchange
2.74
MB
-rwxr-xr-x
lvconvert
2.74
MB
-rwxr-xr-x
lvcreate
2.74
MB
-rwxr-xr-x
lvdisplay
2.74
MB
-rwxr-xr-x
lvextend
2.74
MB
-rwxr-xr-x
lvm
2.74
MB
-rwxr-xr-x
lvmconfig
2.74
MB
-rwxr-xr-x
lvmdiskscan
2.74
MB
-rwxr-xr-x
lvmdump
10.07
KB
-rwxr-xr-x
lvmpolld
235.87
KB
-rwxr-xr-x
lvmsadc
2.74
MB
-rwxr-xr-x
lvmsar
2.74
MB
-rwxr-xr-x
lvreduce
2.74
MB
-rwxr-xr-x
lvremove
2.74
MB
-rwxr-xr-x
lvrename
2.74
MB
-rwxr-xr-x
lvresize
2.74
MB
-rwxr-xr-x
lvs
2.74
MB
-rwxr-xr-x
lvscan
2.74
MB
-rwxr-xr-x
make-bcache
18.01
KB
-rwxr-xr-x
make-ssl-cert
3.78
KB
-rwxr-xr-x
mdadm
565.05
KB
-rwxr-xr-x
mdmon
321.01
KB
-rwxr-xr-x
mii-tool
18.37
KB
-rwxr-xr-x
mkdosfs
34.35
KB
-rwxr-xr-x
mke2fs
130.35
KB
-rwxr-xr-x
mkfs
14.01
KB
-rwxr-xr-x
mkfs.bfs
30.01
KB
-rwxr-xr-x
mkfs.btrfs
451.22
KB
-rwxr-xr-x
mkfs.cramfs
33.94
KB
-rwxr-xr-x
mkfs.ext2
130.35
KB
-rwxr-xr-x
mkfs.ext3
130.35
KB
-rwxr-xr-x
mkfs.ext4
130.35
KB
-rwxr-xr-x
mkfs.fat
34.35
KB
-rwxr-xr-x
mkfs.jffs2
51.21
KB
-rwxr-xr-x
mkfs.minix
106.02
KB
-rwxr-xr-x
mkfs.msdos
34.35
KB
-rwxr-xr-x
mkfs.ntfs
82.05
KB
-rwxr-xr-x
mkfs.ubifs
86.01
KB
-rwxr-xr-x
mkfs.vfat
34.35
KB
-rwxr-xr-x
mkfs.xfs
342.14
KB
-rwxr-xr-x
mkhomedir_helper
17.94
KB
-rwxr-xr-x
mkinitramfs
11.55
KB
-rwxr-xr-x
mklost+found
10.09
KB
-rwxr-xr-x
mkntfs
82.05
KB
-rwxr-xr-x
mkswap
102.02
KB
-rwxr-xr-x
modinfo
162.18
KB
-rwxr-xr-x
modprobe
162.18
KB
-rwxr-xr-x
mount.fuse
9.99
KB
-rwxr-xr-x
mount.lowntfs-3g
106.63
KB
-rwxr-xr-x
mount.ntfs
142.66
KB
-rwxr-xr-x
mount.ntfs-3g
142.66
KB
-rwxr-xr-x
mpathpersist
26.82
KB
-rwxr-xr-x
mtd_debug
14.01
KB
-rwxr-xr-x
mtdinfo
46.01
KB
-rwxr-xr-x
mtdpart
10.01
KB
-rwxr-xr-x
multipath
29.93
KB
-rwxr-xr-x
multipathd
113.98
KB
-rwxr-xr-x
nameif
14.07
KB
-rwxr-xr-x
nanddump
42.02
KB
-rwxr-xr-x
nandtest
14.01
KB
-rwxr-xr-x
nandwrite
42.01
KB
-rwxr-xr-x
netplan
798
B
-rwxr-xr-x
newusers
90.26
KB
-rwxr-xr-x
nfnl_osf
14.09
KB
-rwxr-xr-x
nftl_format
14.02
KB
-rwxr-xr-x
nftldump
9.95
KB
-rwxr-xr-x
nologin
6.08
KB
-rwxr-xr-x
ntfsclone
54.05
KB
-rwxr-xr-x
ntfscp
38.04
KB
-rwxr-xr-x
ntfslabel
30.04
KB
-rwxr-xr-x
ntfsresize
70.05
KB
-rwxr-xr-x
ntfsundelete
50.04
KB
-rwxr-xr-x
on_ac_power
2.18
KB
-rwxr-xr-x
overlayroot-chroot
2.45
KB
-rwxr-xr-x
pam-auth-update
19.86
KB
-rwxr-xr-x
pam_extrausers_chkpwd
37.94
KB
-rwxr-sr-x
pam_extrausers_update
33.94
KB
-rwxr-xr-x
pam_getenv
2.82
KB
-rwxr-xr-x
pam_tally
13.95
KB
-rwxr-xr-x
pam_tally2
13.95
KB
-rwxr-xr-x
pam_timestamp_check
9.93
KB
-rwxr-xr-x
paperconfig
4.07
KB
-rwxr-xr-x
parted
78.2
KB
-rwxr-xr-x
partprobe
14.01
KB
-rwxr-xr-x
pdata_tools
1.2
MB
-rwxr-xr-x
phpdismod
7.11
KB
-rwxr-xr-x
phpenmod
7.11
KB
-rwxr-xr-x
phpquery
6.24
KB
-rwxr-xr-x
pivot_root
10.01
KB
-rwxr-xr-x
plipconfig
9.93
KB
-rwxr-xr-x
plymouthd
122.22
KB
-rwxr-xr-x
popcon-largest-unused
543
B
-rwxr-xr-x
popularity-contest
5.23
KB
-rwxr-xr-x
poweroff
944.84
KB
-rwxr-xr-x
pvchange
2.74
MB
-rwxr-xr-x
pvck
2.74
MB
-rwxr-xr-x
pvcreate
2.74
MB
-rwxr-xr-x
pvdisplay
2.74
MB
-rwxr-xr-x
pvmove
2.74
MB
-rwxr-xr-x
pvremove
2.74
MB
-rwxr-xr-x
pvresize
2.74
MB
-rwxr-xr-x
pvs
2.74
MB
-rwxr-xr-x
pvscan
2.74
MB
-rwxr-xr-x
pwck
53.82
KB
-rwxr-xr-x
pwconv
49.69
KB
-rwxr-xr-x
pwunconv
49.69
KB
-rwxr-xr-x
rarp
36.16
KB
-rwxr-xr-x
raw
14.01
KB
-rwxr-xr-x
readprofile
18.04
KB
-rwxr-xr-x
reboot
944.84
KB
-rwxr-xr-x
recv_image
21.93
KB
-rwxr-xr-x
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904
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58.09
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10.01
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10.01
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162.18
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54.3
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54.3
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64.15
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708.48
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40.02
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46.01
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78.02
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944.84
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58.03
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9.04
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10.13
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14.01
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14.05
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130.01
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182.26
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885
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944.84
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44.2
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2.36
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835.66
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39.09
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46.01
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22.35
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14.01
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18.01
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46.01
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14.05
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30.05
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936
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524.3
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1.01
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944.84
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1.2
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1.2
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1.2
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1.2
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1.2
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102.3
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106
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34.05
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30.01
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10.01
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30.03
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30.05
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4.82
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10.08
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33.93
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33.93
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5.29
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64
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64
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1.66
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7.25
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2.99
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9.18
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30.33
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1.71
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16.76
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59.42
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46.07
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139.2
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94.38
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131
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38.07
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1.73
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47.55
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2.74
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2.74
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2.74
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2.74
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2.74
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2.74
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2.74
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2.74
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2.74
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2.74
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2.74
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2.74
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2.74
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64.09
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64.09
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209.88
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38.01
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1.38
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695
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82.18
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595.84
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9.95
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800
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37.96
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34.06
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1.26
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183.25
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70.06
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25.94
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782
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1.02
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685
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81.95
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531
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13.93
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94.04
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5.86
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38.07
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92.71
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207
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207
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zic
46.07
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zramctl
110.11
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Code Editor : e2scrub
#!/bin/bash # Copyright (C) 2018 Oracle. All Rights Reserved. # # Author: Darrick J. Wong <darrick.wong@oracle.com> # # This program is free software; you can redistribute it and/or # modify it under the terms of the GNU General Public License # as published by the Free Software Foundation; either version 2 # of the License, or (at your option) any later version. # # This program is distributed in the hope that it would be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program; if not, write the Free Software Foundation, # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. # Automatically check an LVM-managed filesystem online. # We use lvm snapshots to do this, which means that we can only # check filesystems in VGs that have at least 256MB (or so) of # free space. PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin if (( $EUID != 0 )); then echo "e2scrub must be run as root" exit 1 fi snap_size_mb=256 fstrim=0 reap=0 e2fsck_opts="" conffile="/etc/e2scrub.conf" test -f "${conffile}" && . "${conffile}" print_help() { echo "Usage: $0 [OPTIONS] mountpoint | device" echo echo "mountpoint must be on an LVM-managed block device" echo "-n: Show what commands e2scrub would execute." echo "-r: Remove e2scrub snapshot and exit, do not check anything." echo "-t: Run fstrim if successful." echo "-V: Print version information and exit." } print_version() { echo "e2scrub 1.45.5 (07-Jan-2020)" } exitcode() { ret="$1" # If we're being run as a service, the return code must fit the LSB # init script action error guidelines, which is to say that we # compress all errors to 1 ("generic or unspecified error", LSB 5.0 # section 22.2) and hope the admin will scan the log for what # actually happened. # We have to sleep 2 seconds here because journald uses the pid to # connect our log messages to the systemd service. This is critical # for capturing all the log messages if the scrub fails, because the # fail service uses the service name to gather log messages for the # error report. if [ -n "${SERVICE_MODE}" -a "${ret}" -ne 0 ]; then test "${ret}" -ne 0 && ret=1 sleep 2 fi exit "${ret}" } while getopts "nrtV" opt; do case "${opt}" in "n") DBG="echo Would execute: " ;; "r") reap=1;; "t") fstrim=1;; "V") print_version; exitcode 0;; *) print_help; exitcode 2;; esac done shift "$((OPTIND - 1))" arg="$1" if [ -z "${arg}" ]; then print_help exitcode 1 fi if ! type lsblk >& /dev/null ; then echo "e2scrub: can't find lsblk --- is util-linux installed?" exitcode 1 fi if ! type lvcreate >& /dev/null ; then echo "e2scrub: can't find lvcreate --- is lvm2 installed?" exitcode 1 fi # close file descriptor 3 (from cron) since it causes lvm to kvetch exec 3<&- # Find the device for a given mountpoint dev_from_mount() { local mountpt="$(realpath "$1")" lsblk -o NAME,FSTYPE,MOUNTPOINT -p -P -n 2> /dev/null | while read vars; do eval "${vars}" if [ "${mountpt}" != "${MOUNTPOINT}" ]; then continue fi case "${FSTYPE}" in ext[234]) echo "${NAME}" return 0 ;; esac done return 1 } # Check a device argument dev_from_arg() { local dev="$1" local fstype="$(lsblk -o FSTYPE -n "${dev}" 2> /dev/null)" case "${fstype}" in ext[234]) echo "${dev}" return 0 ;; esac return 1 } mnt_from_dev() { local dev="$1" if [ -n "${dev}" ]; then lsblk -o MOUNTPOINT -n "${dev}" fi } # Construct block device path and mountpoint from argument if [ -b "${arg}" ]; then dev="$(dev_from_arg "${arg}")" mnt="$(mnt_from_dev "${dev}")" else dev="$(dev_from_mount "${arg}")" mnt="${arg}" fi if [ ! -e "${dev}" ]; then echo "${arg}: Not an ext[234] filesystem." print_help exitcode 16 fi # Make sure this is an LVM device we can snapshot lvm_vars="$(lvs --nameprefixes -o name,vgname,lv_role --noheadings "${dev}" 2> /dev/null)" eval "${lvm_vars}" if [ -z "${LVM2_VG_NAME}" ] || [ -z "${LVM2_LV_NAME}" ] || echo "${LVM2_LV_ROLE}" | grep -q "snapshot"; then echo "${arg}: Not connnected to an LVM logical volume." print_help exitcode 16 fi start_time="$(date +'%Y%m%d%H%M%S')" snap="${LVM2_LV_NAME}.e2scrub" snap_dev="/dev/${LVM2_VG_NAME}/${snap}" teardown() { # Remove and wait for removal to succeed. ${DBG} lvremove -f "${LVM2_VG_NAME}/${snap}" while [ -e "${snap_dev}" ] && [ "$?" -eq "5" ]; do sleep 0.5 ${DBG} lvremove -f "${LVM2_VG_NAME}/${snap}" done } check() { # First we recover the journal, then we see if e2fsck tries any # non-optimization repairs. If either of these two returns a # non-zero status (errors fixed or remaining) then this fs is bad. E2FSCK_FIXES_ONLY=1 export E2FSCK_FIXES_ONLY ${DBG} "/sbin/e2fsck" -E journal_only -p ${e2fsck_opts} "${snap_dev}" || return $? ${DBG} "/sbin/e2fsck" -f -y ${e2fsck_opts} "${snap_dev}" } mark_clean() { ${DBG} "/sbin/tune2fs" -C 0 -T "${start_time}" "${dev}" } mark_corrupt() { ${DBG} "/sbin/tune2fs" -E force_fsck "${dev}" } setup() { # Try to remove snapshot for 30s, bail out if we can't remove it. lvremove_deadline="$(( $(date "+%s") + 30))" ${DBG} lvremove -f "${LVM2_VG_NAME}/${snap}" 2>/dev/null while [ -e "${snap_dev}" ] && [ "$?" -eq "5" ] && [ "$(date "+%s")" -lt "${lvremove_deadline}" ]; do sleep 0.5 ${DBG} lvremove -f "${LVM2_VG_NAME}/${snap}" done if [ -e "${snap_dev}" ]; then echo "${arg}: e2scrub snapshot is in use, cannot check!" return 1 fi # Create the snapshot, wait for device to appear. ${DBG} lvcreate -s -L "${snap_size_mb}m" -n "${snap}" "${LVM2_VG_NAME}/${LVM2_LV_NAME}" if [ $? -ne 0 ]; then echo "${arg}: e2scrub snapshot FAILED, will not check!" return 1 fi ${DBG} udevadm settle 2> /dev/null return 0 } if [ "${reap}" -gt 0 ]; then if [ -e "${snap_dev}" ]; then teardown 2> /dev/null fi exit 0 fi if ! setup; then exitcode 8 fi trap "teardown; exit 1" EXIT INT QUIT TERM # Check and react check case "$?" in "0") # Clean check! echo "${arg}: Scrub succeeded." mark_clean teardown trap '' EXIT # Trim the free space, which requires the snapshot be deleted. if [ "${fstrim}" -eq 1 ] && [ -d "${mnt}" ] && type fstrim > /dev/null 2>&1; then echo "${arg}: Trimming free space." fstrim -v "${mnt}" fi ret=0 ;; "8") # Operational error, what now? echo "${arg}: e2fsck operational error." teardown trap '' EXIT ret=8 ;; *) # fsck failed. Check if the snapshot is invalid; if so, make a # note of that at the end of the log. This isn't necessarily a # failure because the mounted fs could have overflowed the # snapshot with regular disk writes /or/ our repair process # could have done it by repairing too much. # # If it's really corrupt we ought to fsck at next boot. is_invalid="$(lvs -o lv_snapshot_invalid --noheadings "${snap_dev}" | awk '{print $1}')" if [ -n "${is_invalid}" ]; then echo "${arg}: Scrub FAILED due to invalid snapshot." ret=8 else echo "${arg}: Scrub FAILED due to corruption! Unmount and run e2fsck -y." mark_corrupt ret=6 fi teardown trap '' EXIT ;; esac exitcode "${ret}"
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