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[ HOME SHELL ]
Name
Size
Permission
Action
aa-remove-unknown
3
KB
-rwxr-xr-x
aa-status
62.62
KB
-rwxr-xr-x
aa-teardown
137
B
-rwxr-xr-x
accessdb
14.55
KB
-rwxr-xr-x
acpid
55.02
KB
-rwxr-xr-x
add-shell
1.03
KB
-rwxr-xr-x
addgnupghome
3
KB
-rwxr-xr-x
addgroup
37.35
KB
-rwxr-xr-x
adduser
37.35
KB
-rwxr-xr-x
agetty
55.56
KB
-rwxr-xr-x
apachectl
4.52
KB
-rwxr-xr-x
apparmor_parser
1.48
MB
-rwxr-xr-x
apparmor_status
62.62
KB
-rwxr-xr-x
applygnupgdefaults
2.17
KB
-rwxr-xr-x
arp
61.61
KB
-rwxr-xr-x
arpd
26.33
KB
-rwxr-xr-x
arptables
219.04
KB
-rwxr-xr-x
arptables-nft
219.04
KB
-rwxr-xr-x
arptables-nft-restore
219.04
KB
-rwxr-xr-x
arptables-nft-save
219.04
KB
-rwxr-xr-x
arptables-restore
219.04
KB
-rwxr-xr-x
arptables-save
219.04
KB
-rwxr-xr-x
aspell-autobuildhash
13.4
KB
-rwxr-xr-x
atd
30.16
KB
-rwxr-xr-x
badblocks
34.32
KB
-rwxr-xr-x
biosdecode
23.2
KB
-rwxr-xr-x
blkdeactivate
15.97
KB
-rwxr-xr-x
blkdiscard
22.38
KB
-rwxr-xr-x
blkid
50.41
KB
-rwxr-xr-x
blkmapd
38.3
KB
-rwxr-xr-x
blkzone
34.38
KB
-rwxr-xr-x
blockdev
30.38
KB
-rwxr-xr-x
bridge
92.49
KB
-rwxr-xr-x
capsh
30.3
KB
-rwxr-xr-x
cfdisk
94.73
KB
-rwxr-xr-x
chcpu
30.38
KB
-rwxr-xr-x
checkrestart
30.4
KB
-rwxr-xr-x
chgpasswd
58.13
KB
-rwxr-xr-x
chmem
34.38
KB
-rwxr-xr-x
chpasswd
54.16
KB
-rwxr-xr-x
chroot
38.51
KB
-rwxr-xr-x
convertquota
66.88
KB
-rwxr-xr-x
cpgr
48.29
KB
-rwxr-xr-x
cppw
48.29
KB
-rwxr-xr-x
cracklib-check
14.15
KB
-rwxr-xr-x
cracklib-format
231
B
-rwxr-xr-x
cracklib-packer
14.15
KB
-rwxr-xr-x
cracklib-unpacker
14.15
KB
-rwxr-xr-x
create-cracklib-dict
990
B
-rwxr-xr-x
cron
50.58
KB
-rwxr-xr-x
ctrlaltdel
14.38
KB
-rwxr-xr-x
dcb
80.52
KB
-rwxr-xr-x
ddns-confgen
26.3
KB
-rwxr-xr-x
debugfs
229.8
KB
-rwxr-xr-x
delgroup
16.11
KB
-rwxr-xr-x
deluser
16.11
KB
-rwxr-xr-x
depmod
166.36
KB
-rwxr-xr-x
devlink
142.86
KB
-rwxr-xr-x
dhclient
442.66
KB
-rwxr-xr-x
dhclient-script
15.92
KB
-rwxr-xr-x
dmidecode
122.98
KB
-rwxr-xr-x
dmsetup
171.02
KB
-rwxr-xr-x
dmstats
171.02
KB
-rwxr-xr-x
dosfsck
82.38
KB
-rwxr-xr-x
dosfslabel
38.38
KB
-rwxr-xr-x
dovecot
98.43
KB
-rwxr-xr-x
dovecot_cpshutdown
3.27
KB
-rwxr-xr-x
dpkg-preconfigure
3.58
KB
-rwxr-xr-x
dpkg-reconfigure
4.38
KB
-rwxr-xr-x
dumpe2fs
30.31
KB
-rwxr-xr-x
e2freefrag
14.3
KB
-rwxr-xr-x
e2fsck
351.84
KB
-rwxr-xr-x
e2image
42.31
KB
-rwxr-xr-x
e2label
102.55
KB
-rwxr-xr-x
e2mmpstatus
30.31
KB
-rwxr-xr-x
e2scrub
7.13
KB
-rwxr-xr-x
e2scrub_all
5.27
KB
-rwxr-xr-x
e2undo
22.3
KB
-rwxr-xr-x
e4crypt
30.38
KB
-rwxr-xr-x
e4defrag
30.3
KB
-rwxr-xr-x
ebtables
219.04
KB
-rwxr-xr-x
ebtables-nft
219.04
KB
-rwxr-xr-x
ebtables-nft-restore
219.04
KB
-rwxr-xr-x
ebtables-nft-save
219.04
KB
-rwxr-xr-x
ebtables-restore
219.04
KB
-rwxr-xr-x
ebtables-save
219.04
KB
-rwxr-xr-x
edquota
83.31
KB
-rwxr-xr-x
escapesrc
22.45
KB
-rwxr-xr-x
exicyclog
11.1
KB
-rwxr-xr-x
exigrep
10.52
KB
-rwxr-xr-x
exim
1.69
MB
-rwsr-xr-x
exim_checkaccess
4.83
KB
-rwxr-xr-x
exim_dbmbuild
18.3
KB
-rwxr-xr-x
exim_dumpdb
18.3
KB
-rwxr-xr-x
exim_fixdb
30.3
KB
-rwxr-xr-x
exim_lock
18.3
KB
-rwxr-xr-x
exim_tidydb
18.3
KB
-rwxr-xr-x
eximstats
148.26
KB
-rwxr-xr-x
exinext
7.14
KB
-rwxr-xr-x
exiqgrep
5.66
KB
-rwxr-xr-x
exiqsumm
5.32
KB
-rwxr-xr-x
exiwhat
4.42
KB
-rwxr-xr-x
faillock
14.15
KB
-rwxr-xr-x
fatlabel
38.38
KB
-rwxr-xr-x
fcgistarter
14.15
KB
-rwxr-xr-x
fdisk
110.42
KB
-rwxr-xr-x
filefrag
18.32
KB
-rwxr-xr-x
findfs
14.38
KB
-rwxr-xr-x
fsck
42.42
KB
-rwxr-xr-x
fsck.cramfs
30.44
KB
-rwxr-xr-x
fsck.ext2
351.84
KB
-rwxr-xr-x
fsck.ext3
351.84
KB
-rwxr-xr-x
fsck.ext4
351.84
KB
-rwxr-xr-x
fsck.fat
82.38
KB
-rwxr-xr-x
fsck.minix
54.41
KB
-rwxr-xr-x
fsck.msdos
82.38
KB
-rwxr-xr-x
fsck.vfat
82.38
KB
-rwxr-xr-x
fsfreeze
14.38
KB
-rwxr-xr-x
fstab-decode
18.3
KB
-rwxr-xr-x
fstrim
42.38
KB
-rwxr-xr-x
genccode
14.73
KB
-rwxr-xr-x
gencmn
14.73
KB
-rwxr-xr-x
genl
90.44
KB
-rwxr-xr-x
gennorm2
62.9
KB
-rwxr-xr-x
gensprep
26.8
KB
-rwxr-xr-x
getcap
14.3
KB
-rwxr-xr-x
getpcaps
14.3
KB
-rwxr-xr-x
getty
55.56
KB
-rwxr-xr-x
groupadd
66.91
KB
-rwxr-xr-x
groupdel
62.73
KB
-rwxr-xr-x
groupmems
54.19
KB
-rwxr-xr-x
groupmod
66.82
KB
-rwxr-xr-x
grpck
58.13
KB
-rwxr-xr-x
grpconv
50.01
KB
-rwxr-xr-x
grpunconv
50.01
KB
-rwxr-xr-x
grub-bios-setup
941.42
KB
-rwxr-xr-x
grub-install
1.15
MB
-rwxr-xr-x
grub-macbless
929.11
KB
-rwxr-xr-x
grub-mkconfig
8.6
KB
-rwxr-xr-x
grub-mkdevicemap
215.7
KB
-rwxr-xr-x
grub-probe
941.36
KB
-rwxr-xr-x
grub-reboot
4.73
KB
-rwxr-xr-x
grub-set-default
3.47
KB
-rwxr-xr-x
halt
1.06
MB
-rwxr-xr-x
hdparm
139.43
KB
-rwxr-xr-x
htcacheclean
38.16
KB
-rwxr-xr-x
httpd
687.55
KB
-rwxr-xr-x
hwclock
50.5
KB
-rwxr-xr-x
iconvconfig
30.4
KB
-rwxr-xr-x
icupkg
23.1
KB
-rwxr-xr-x
ifconfig
77.17
KB
-rwxr-xr-x
imunify-notifier
9.02
MB
-rwxr-xr-x
init
1.76
MB
-rwxr-xr-x
insmod
166.36
KB
-rwxr-xr-x
installkernel
2.6
KB
-rwxr-xr-x
invoke-rc.d
16.12
KB
-rwxr-xr-x
ip
702.05
KB
-rwxr-xr-x
ip6tables
219.04
KB
-rwxr-xr-x
ip6tables-apply
6.89
KB
-rwxr-xr-x
ip6tables-legacy
96.95
KB
-rwxr-xr-x
ip6tables-legacy-restore
96.95
KB
-rwxr-xr-x
ip6tables-legacy-save
96.95
KB
-rwxr-xr-x
ip6tables-nft
219.04
KB
-rwxr-xr-x
ip6tables-nft-restore
219.04
KB
-rwxr-xr-x
ip6tables-nft-save
219.04
KB
-rwxr-xr-x
ip6tables-restore
219.04
KB
-rwxr-xr-x
ip6tables-restore-translate
219.04
KB
-rwxr-xr-x
ip6tables-save
219.04
KB
-rwxr-xr-x
ip6tables-translate
219.04
KB
-rwxr-xr-x
ipmaddr
18.3
KB
-rwxr-xr-x
iptables
219.04
KB
-rwxr-xr-x
iptables-apply
6.89
KB
-rwxr-xr-x
iptables-legacy
96.95
KB
-rwxr-xr-x
iptables-legacy-restore
96.95
KB
-rwxr-xr-x
iptables-legacy-save
96.95
KB
-rwxr-xr-x
iptables-nft
219.04
KB
-rwxr-xr-x
iptables-nft-restore
219.04
KB
-rwxr-xr-x
iptables-nft-save
219.04
KB
-rwxr-xr-x
iptables-restore
219.04
KB
-rwxr-xr-x
iptables-restore-translate
219.04
KB
-rwxr-xr-x
iptables-save
219.04
KB
-rwxr-xr-x
iptables-translate
219.04
KB
-rwxr-xr-x
iptunnel
18.3
KB
-rwxr-xr-x
irqbalance
66.86
KB
-rwxr-xr-x
irqbalance-ui
34.38
KB
-rwxr-xr-x
isosize
14.38
KB
-rwxr-xr-x
ispell-autobuildhash
15.56
KB
-rwxr-xr-x
iucode-tool
58.34
KB
-rwxr-xr-x
iucode_tool
58.34
KB
-rwxr-xr-x
iw
279.28
KB
-rwxr-xr-x
kbdrate
18.16
KB
-rwxr-xr-x
key.dns_resolver
30.39
KB
-rwxr-xr-x
killall5
30.38
KB
-rwxr-xr-x
lchage
22.3
KB
-rwxr-xr-x
ldattach
26.38
KB
-rwxr-xr-x
ldconfig
387
B
-rwxr-xr-x
ldconfig.real
1.16
MB
-rwxr-xr-x
lgroupadd
14.3
KB
-rwxr-xr-x
lgroupdel
14.3
KB
-rwxr-xr-x
lgroupmod
22.3
KB
-rwxr-xr-x
libuser-lid
18.3
KB
-rwxr-xr-x
lnewusers
22.3
KB
-rwxr-xr-x
locale-gen
4.29
KB
-rwxr-xr-x
logrotate
102.24
KB
-rwxr-xr-x
logsave
14.16
KB
-rwxr-xr-x
losetup
70.52
KB
-rwxr-xr-x
lpasswd
22.3
KB
-rwxr-xr-x
lsmod
166.36
KB
-rwxr-xr-x
luseradd
22.3
KB
-rwxr-xr-x
luserdel
14.3
KB
-rwxr-xr-x
lusermod
22.3
KB
-rwxr-xr-x
make-ssl-cert
6.65
KB
-rwxr-xr-x
mii-tool
26.73
KB
-rwxr-xr-x
mkdosfs
50.83
KB
-rwxr-xr-x
mke2fs
130.62
KB
-rwxr-xr-x
mkfs
14.38
KB
-rwxr-xr-x
mkfs.bfs
22.38
KB
-rwxr-xr-x
mkfs.cramfs
34.32
KB
-rwxr-xr-x
mkfs.ext2
130.62
KB
-rwxr-xr-x
mkfs.ext3
130.62
KB
-rwxr-xr-x
mkfs.ext4
130.62
KB
-rwxr-xr-x
mkfs.fat
50.83
KB
-rwxr-xr-x
mkfs.minix
42.39
KB
-rwxr-xr-x
mkfs.msdos
50.83
KB
-rwxr-xr-x
mkfs.ntfs
70.38
KB
-rwxr-xr-x
mkfs.vfat
50.83
KB
-rwxr-xr-x
mkhomedir_helper
22.17
KB
-rwxr-xr-x
mkinitramfs
12.16
KB
-rwxr-xr-x
mklost+found
14.3
KB
-rwxr-xr-x
mkntfs
70.38
KB
-rwxr-xr-x
mkswap
46.38
KB
-rwxr-xr-x
modinfo
166.36
KB
-rwxr-xr-x
modprobe
166.36
KB
-rwxr-xr-x
modsec-sdbm-util
22.15
KB
-rwxr-x---
mount.fuse
18.3
KB
-rwxr-xr-x
mount.fuse3
18.3
KB
-rwxr-xr-x
mount.lowntfs-3g
114.98
KB
-rwxr-xr-x
mount.nfs
98.68
KB
-rwsr-xr-x
mount.nfs4
98.68
KB
-rwsr-xr-x
mount.ntfs
159.01
KB
-rwxr-xr-x
mount.ntfs-3g
159.01
KB
-rwxr-xr-x
mountstats
42.28
KB
-rwxr-xr-x
mysqld
58.58
MB
-rwxr-xr-x
named
565.61
KB
-rwxr-xr-x
nameif
14.48
KB
-rwxr-xr-x
needrestart
38.71
KB
-rwxr-xr-x
netfilter-persistent
1.04
KB
-rwxr-xr-x
netplan
798
B
-rwxr-xr-x
newusers
74.73
KB
-rwxr-xr-x
nfnl_osf
18.3
KB
-rwxr-xr-x
nfsconf
38.67
KB
-rwxr-xr-x
nfsidmap
22.31
KB
-rwxr-xr-x
nfsiostat
24.41
KB
-rwxr-xr-x
nfsstat
37.29
KB
-rwxr-xr-x
nft
26.23
KB
-rwxr-xr-x
nologin
14.3
KB
-rwxr-xr-x
nscd
164.34
KB
-rwxr-xr-x
ntfsclone
50.38
KB
-rwxr-xr-x
ntfscp
34.38
KB
-rwxr-xr-x
ntfslabel
22.38
KB
-rwxr-xr-x
ntfsresize
62.39
KB
-rwxr-xr-x
ntfsundelete
50.38
KB
-rwxr-xr-x
on_ac_power
2.18
KB
-rwxr-xr-x
ownership
14.45
KB
-rwxr-xr-x
pam-auth-update
20.5
KB
-rwxr-xr-x
pam_extrausers_chkpwd
22.15
KB
-rwxr-sr-x
pam_extrausers_update
30.15
KB
-rwxr-xr-x
pam_getenv
2.82
KB
-rwxr-xr-x
pam_timestamp_check
14.15
KB
-rwxr-xr-x
paperconfig
4.07
KB
-rwxr-xr-x
parted
86.4
KB
-rwxr-xr-x
partprobe
14.38
KB
-rwxr-xr-x
pdns_server
70.99
MB
-rwxr-xr-x
pivot_root
14.38
KB
-rwxr-xr-x
plipconfig
14.3
KB
-rwxr-xr-x
plymouthd
150.55
KB
-rwxr-xr-x
popcon-largest-unused
543
B
-rwxr-xr-x
popularity-contest
5.49
KB
-rwxr-xr-x
poweroff
1.06
MB
-rwxr-xr-x
pwck
50.13
KB
-rwxr-xr-x
pwconv
46.01
KB
-rwxr-xr-x
pwunconv
42.01
KB
-rwxr-xr-x
quota_nld
26.41
KB
-rwxr-xr-x
quotacheck
91.34
KB
-rwxr-xr-x
quotaoff
54.78
KB
-rwxr-xr-x
quotaon
54.78
KB
-rwxr-xr-x
quotastats
14.15
KB
-rwxr-xr-x
rarp
32.33
KB
-rwxr-xr-x
rdate
18.15
KB
-rwxr-xr-x
readprofile
22.41
KB
-rwxr-xr-x
reboot
1.06
MB
-rwxr-xr-x
remove-default-ispell
2.86
KB
-rwxr-xr-x
remove-default-wordlist
2.86
KB
-rwxr-xr-x
remove-shell
1.07
KB
-rwxr-xr-x
repquota
71.41
KB
-rwxr-xr-x
request-key
26.31
KB
-rwxr-xr-x
resize2fs
66.3
KB
-rwxr-xr-x
rmmod
166.36
KB
-rwxr-xr-x
rmt
58.57
KB
-rwxr-xr-x
rmt-tar
58.57
KB
-rwxr-xr-x
rndc
42.3
KB
-rwxr-xr-x
rndc-confgen
22.3
KB
-rwxr-xr-x
rotatelogs
26.23
KB
-rwxr-xr-x
route
64.27
KB
-rwxr-xr-x
rpc.gssd
86.5
KB
-rwxr-xr-x
rpc.idmapd
46.48
KB
-rwxr-xr-x
rpc.rquotad
75.18
KB
-rwxr-xr-x
rpc.statd
79.05
KB
-rwxr-xr-x
rpc.svcgssd
46.4
KB
-rwxr-xr-x
rpcbind
62.41
KB
-rwxr-xr-x
rpcdebug
18.38
KB
-rwxr-xr-x
rpcinfo
34.48
KB
-rwxr-xr-x
rsyslogd
767.19
KB
-rwxr-xr-x
rtacct
28.31
KB
-rwxr-xr-x
rtcwake
34.38
KB
-rwxr-xr-x
rtmon
90.39
KB
-rwxr-xr-x
runlevel
1.06
MB
-rwxr-xr-x
runq
1.69
MB
-rwsr-xr-x
runuser
54.38
KB
-rwxr-xr-x
safe_finger
14.34
KB
-rwxr-xr-x
select-default-ispell
3.23
KB
-rwxr-xr-x
select-default-wordlist
3.21
KB
-rwxr-xr-x
sendmail
14.15
KB
-rwxr-sr-x
service
8.88
KB
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14.3
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79.38
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14.23
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setvtrgb
14.29
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sfdisk
102.38
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shadowconfig
885
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showmount
14.57
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shutdown
1.06
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36.08
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sm-notify
50.48
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smartctl
827.65
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smartd
587.16
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sshd
899.7
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1023
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47.35
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sudo_logsrvd
200.1
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107.34
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suexec
26.23
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42.38
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158.41
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18.43
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18.38
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42.38
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22.38
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sync-available
1.42
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sysctl
30.23
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tarcat
936
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tc
614.08
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tcpd
14.3
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tcpdchk
30.41
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tcpdmatch
22.31
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telinit
1.06
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14.3
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26.3
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102.55
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4.82
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98.68
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umount.nfs4
98.68
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unix_chkpwd
26.15
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unix_update
30.15
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update-ca-certificates
5.29
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1.15
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1
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9.68
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7.5
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1
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64
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301
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64
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470
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1.66
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6.74
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update-locale
2.99
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update-mime
9.39
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update-passwd
34.56
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update-pciids
1.71
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update-rc.d
16.92
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update-shells
3.72
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update-smart-drivedb
23.35
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upgrade-from-grub-legacy
1.56
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useradd
127.66
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userdel
86.85
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usermod
123.46
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uuidd
30.85
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validlocale
1.73
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vcstime
14.15
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vdpa
30.56
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vigr
56.53
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vipw
56.53
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visudo
219.79
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vpddecode
14.58
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warnquota
87.3
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whmapi0
3.16
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whmapi1
3.16
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2.33
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38.38
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14.15
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xtables-legacy-multi
96.95
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xtables-monitor
219.04
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xtables-nft-multi
219.04
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62.32
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54.52
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Code Editor : dhclient-script
#!/bin/sh # Explicitly set the PATH to that of ENV_SUPATH in /etc/login.defs and unset # various other variables. We need to do this so /sbin/dhclient cannot abuse # the environment to escape AppArmor confinement via this script # (LP: #1045986). This can be removed once AppArmor supports environment # filtering (LP: #1045985) export PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin export ENV= export BASH_ENV= export CDPATH= export GLOBIGNORE= export BASH_XTRACEFD= # dhclient-script for Linux. Dan Halbert, March, 1997. # Updated for Linux 2.[12] by Brian J. Murrell, January 1999. # Modified for Debian. Matt Zimmerman and Eloy Paris, December 2003 # Modified to remove useless tests for antiquated kernel versions that # this doesn't even work with anyway, and introduces a dependency on /usr # being mounted, which causes cosmetic errors on hosts that NFS mount /usr # Andrew Pollock, February 2005 # Modified to work on point-to-point links. Andrew Pollock, June 2005 # Modified to support passing the parameters called with to the hooks. Andrew Pollock, November 2005 # The alias handling in here probably still sucks. -mdz # log an error. error() { logger -p daemon.err "$@"; } # wait for given file to be writable wait_for_rw() { local file=$1 # Find out whether we are going to mount / rw exec 9>&0 </etc/fstab rootmode=rw while read dev mnt type opts dump pass junk; do [ "$mnt" != / ] && continue case "$opts" in ro|ro,*|*,ro|*,ro,*) rootmode=ro ;; esac done exec 0>&9 9>&- # Wait for $file to become writable if [ "$rootmode" = "rw" ]; then while ! { : >> "$file"; } 2>/dev/null; do sleep 0.1 done fi } # update /etc/resolv.conf based on received values make_resolv_conf() { local new_resolv_conf # DHCPv4 if [ -n "$new_domain_search" ] || [ -n "$new_domain_name" ] || [ -n "$new_domain_name_servers" ]; then resolv_conf=$(readlink -f "/etc/resolv.conf" 2>/dev/null) || resolv_conf="/etc/resolv.conf" new_resolv_conf="${resolv_conf}.dhclient-new.$$" wait_for_rw "$new_resolv_conf" rm -f $new_resolv_conf if [ -n "$new_domain_name" ]; then echo domain ${new_domain_name%% *} >>$new_resolv_conf fi if [ -n "$new_domain_search" ]; then if [ -n "$new_domain_name" ]; then domain_in_search_list="" for domain in $new_domain_search; do if [ "$domain" = "${new_domain_name}" ] || [ "$domain" = "${new_domain_name}." ]; then domain_in_search_list="Yes" fi done if [ -z "$domain_in_search_list" ]; then new_domain_search="$new_domain_name $new_domain_search" fi fi echo "search ${new_domain_search}" >> $new_resolv_conf elif [ -n "$new_domain_name" ]; then echo "search ${new_domain_name}" >> $new_resolv_conf fi if [ -n "$new_domain_name_servers" ]; then for nameserver in $new_domain_name_servers; do echo nameserver $nameserver >>$new_resolv_conf done else # keep 'old' nameservers sed -n /^\w*[Nn][Aa][Mm][Ee][Ss][Ee][Rr][Vv][Ee][Rr]/p $resolv_conf >>$new_resolv_conf fi if [ -f $resolv_conf ]; then chown --reference=$resolv_conf $new_resolv_conf chmod --reference=$resolv_conf $new_resolv_conf fi mv -f $new_resolv_conf $resolv_conf # DHCPv6 elif [ -n "$new_dhcp6_domain_search" ] || [ -n "$new_dhcp6_name_servers" ]; then resolv_conf=$(readlink -f "/etc/resolv.conf" 2>/dev/null) || resolv_conf="/etc/resolv.conf" new_resolv_conf="${resolv_conf}.dhclient-new.$$" wait_for_rw "$new_resolv_conf" rm -f $new_resolv_conf if [ -n "$new_dhcp6_domain_search" ]; then echo "search ${new_dhcp6_domain_search}" >> $new_resolv_conf fi if [ -n "$new_dhcp6_name_servers" ]; then for nameserver in $new_dhcp6_name_servers; do # append %interface to link-local-address nameservers if [ "${nameserver##fe80::}" != "$nameserver" ] || [ "${nameserver##FE80::}" != "$nameserver" ]; then nameserver="${nameserver}%${interface}" fi echo nameserver $nameserver >>$new_resolv_conf done else # keep 'old' nameservers sed -n /^\w*[Nn][Aa][Mm][Ee][Ss][Ee][Rr][Vv][Ee][Rr]/p $resolv_conf >>$new_resolv_conf fi if [ -f $resolv_conf ]; then chown --reference=$resolv_conf $new_resolv_conf chmod --reference=$resolv_conf $new_resolv_conf fi mv -f $new_resolv_conf $resolv_conf fi } # set host name set_hostname() { if [ -n "$new_host_name" ]; then local current_hostname=$(hostname) # current host name is empty, '(none)' or 'localhost' or differs from new one from DHCP if [ -z "$current_hostname" ] || [ "$current_hostname" = '(none)' ] || [ "$current_hostname" = 'localhost' ] || [ "$current_hostname" = "$old_host_name" ]; then if [ "$new_host_name" != "$current_host_name" ]; then hostname "$new_host_name" fi fi fi } # set the link up and wait for ipv6 link local dad to finish ipv6_link_up_and_dad() { local dev=$1 delay=${2:-0.1} attempts=${3:-60} ip link set up dev "$dev" || { error "$dev: failed to set link up"; return 1; } local n=0 while :; do n=$((n+1)) # note: busybox ip does not understand 'tentative' as input # so we cannot just use the tentative flag and check for empty out=$(ip -6 -o address show dev "$dev" scope link) || { error "$dev: checking for link-local addresses failed"; return 1 } # another note: the output may be empty if the link local tentative addr # isn't up just yet, so we need to make sure there is at least one 'inet6' # match before returning success. We need to keep checking for both # 'tentative' case and default (no inet6 address) case. (LP: #1718568) # Don't reorder tentative/inet6 - we need to check for tentative first. case " $out " in *\ dadfailed\ *) error "$dev: ipv6 dad failed." return 1;; *\ tentative\ *) :;; *\ inet6\ *) return 0;; *) :;; esac [ $n -lt $attempts ] || { error "$dev: time out waiting for permanent link-local address" return 1; } sleep $delay done } # run given script run_hook() { local script="$1" local exit_status=0 if [ -f $script ]; then . $script exit_status=$? fi if [ -n "$exit_status" ] && [ "$exit_status" -ne 0 ]; then logger -p daemon.err "$script returned non-zero exit status $exit_status" fi return $exit_status } # run scripts in given directory run_hookdir() { local dir="$1" local exit_status=0 if [ -d "$dir" ]; then for script in $(run-parts --list $dir); do run_hook $script exit_status=$((exit_status|$?)) done fi return $exit_status } # Must be used on exit. Invokes the local dhcp client exit hooks, if any. exit_with_hooks() { local exit_status=$1 # Source the documented exit-hook script, if it exists if ! run_hook /etc/dhcp/dhclient-exit-hooks; then exit_status=$? fi # Now run scripts in the Debian-specific directory. if ! run_hookdir /etc/dhcp/dhclient-exit-hooks.d; then exit_status=$? fi exit $exit_status } # The 576 MTU is only used for X.25 and dialup connections # where the admin wants low latency. Such a low MTU can cause # problems with UDP traffic, among other things. As such, # disallow MTUs from 576 and below by default, so that broken # MTUs are ignored, but higher stuff is allowed (1492, 1500, etc). if [ -z "$new_interface_mtu" ] || [ "$new_interface_mtu" -le 576 ]; then new_interface_mtu='' fi # The action starts here # Invoke the local dhcp client enter hooks, if they exist. run_hook /etc/dhcp/dhclient-enter-hooks run_hookdir /etc/dhcp/dhclient-enter-hooks.d # Execute the operation case "$reason" in ### DHCPv4 Handlers MEDIUM|ARPCHECK|ARPSEND) # Do nothing ;; PREINIT) # The DHCP client is requesting that an interface be # configured as required in order to send packets prior to # receiving an actual address. - dhclient-script(8) # ensure interface is up ip link set dev ${interface} up if [ -n "$alias_ip_address" ]; then # flush alias IP from interface ip -4 addr flush dev ${interface} label ${interface}:0 fi ;; BOUND|RENEW|REBIND|REBOOT) set_hostname if [ -n "$old_ip_address" ] && [ -n "$alias_ip_address" ] && [ "$alias_ip_address" != "$old_ip_address" ]; then # alias IP may have changed => flush it ip -4 addr flush dev ${interface} label ${interface}:0 fi if [ -n "$old_ip_address" ] && [ "$old_ip_address" != "$new_ip_address" ]; then # leased IP has changed => flush it ip -4 addr flush dev ${interface} label ${interface} fi if [ -z "$old_ip_address" ] || [ "$old_ip_address" != "$new_ip_address" ] || [ "$reason" = "BOUND" ] || [ "$reason" = "REBOOT" ]; then # new IP has been leased or leased IP changed => set it ip -4 addr add ${new_ip_address}${new_subnet_mask:+/$new_subnet_mask} \ ${new_broadcast_address:+broadcast $new_broadcast_address} \ ${new_dhcp_lease_time:+valid_lft $new_dhcp_lease_time} \ ${new_dhcp_lease_time:+preferred_lft $new_dhcp_lease_time} \ dev ${interface} label ${interface} if [ -n "$new_interface_mtu" ]; then # set MTU ip link set dev ${interface} mtu ${new_interface_mtu} fi # if we have $new_rfc3442_classless_static_routes then we have to # ignore $new_routers entirely if [ ! "$new_rfc3442_classless_static_routes" ]; then # set if_metric if IF_METRIC is set or there's more than one router if_metric="$IF_METRIC" if [ "${new_routers%% *}" != "${new_routers}" ]; then if_metric=${if_metric:-1} fi for router in $new_routers; do if [ "$new_subnet_mask" = "255.255.255.255" ]; then # point-to-point connection => set explicit route ip -4 route add ${router} dev $interface >/dev/null 2>&1 fi # set default route ip -4 route add default via ${router} dev ${interface} \ ${if_metric:+metric $if_metric} >/dev/null 2>&1 if [ -n "$if_metric" ]; then if_metric=$((if_metric+1)) fi done fi else # RENEW||REBIND ip -4 addr change ${new_ip_address}${new_subnet_mask:+/$new_subnet_mask} \ ${new_broadcast_address:+broadcast $new_broadcast_address} \ ${new_dhcp_lease_time:+valid_lft $new_dhcp_lease_time} \ ${new_dhcp_lease_time:+preferred_lft $new_dhcp_lease_time} \ dev ${interface} label ${interface} fi if [ -n "$alias_ip_address" ] && [ "$new_ip_address" != "$alias_ip_address" ]; then # separate alias IP given, which may have changed # => flush it, set it & add host route to it ip -4 addr flush dev ${interface} label ${interface}:0 ip -4 addr add ${alias_ip_address}${alias_subnet_mask:+/$alias_subnet_mask} \ dev ${interface} label ${interface}:0 ip -4 route add ${alias_ip_address} dev ${interface} >/dev/null 2>&1 fi # update /etc/resolv.conf make_resolv_conf ;; EXPIRE|FAIL|RELEASE|STOP) if [ -n "$alias_ip_address" ]; then # flush alias IP ip -4 addr flush dev ${interface} label ${interface}:0 fi if [ -n "$old_ip_address" ]; then # flush leased IP ip -4 addr flush dev ${interface} label ${interface} fi if [ -n "$alias_ip_address" ]; then # alias IP given => set it & add host route to it ip -4 addr add ${alias_ip_address}${alias_subnet_mask:+/$alias_subnet_mask} \ dev ${interface} label ${interface}:0 ip -4 route add ${alias_ip_address} dev ${interface} >/dev/null 2>&1 fi ;; TIMEOUT) if [ -n "$alias_ip_address" ]; then # flush alias IP ip -4 addr flush dev ${interface} label ${interface}:0 fi # set IP from recorded lease ip -4 addr add ${new_ip_address}${new_subnet_mask:+/$new_subnet_mask} \ ${new_broadcast_address:+broadcast $new_broadcast_address} \ ${new_dhcp_lease_time:+valid_lft $new_dhcp_lease_time} \ ${new_dhcp_lease_time:+preferred_lft $new_dhcp_lease_time} \ dev ${interface} label ${interface} if [ -n "$new_interface_mtu" ]; then # set MTU ip link set dev ${interface} mtu ${new_interface_mtu} fi # if there is no router recorded in the lease or the 1st router answers pings if [ -z "$new_routers" ] || ping -q -c 1 "${new_routers%% *}"; then # if we have $new_rfc3442_classless_static_routes then we have to # ignore $new_routers entirely if [ ! "$new_rfc3442_classless_static_routes" ]; then if [ -n "$alias_ip_address" ] && [ "$new_ip_address" != "$alias_ip_address" ]; then # separate alias IP given => set up the alias IP & add host route to it ip -4 addr add ${alias_ip_address}${alias_subnet_mask:+/$alias_subnet_mask} \ dev ${interface} label ${interface}:0 ip -4 route add ${alias_ip_address} dev ${interface} >/dev/null 2>&1 fi # set if_metric if IF_METRIC is set or there's more than one router if_metric="$IF_METRIC" if [ "${new_routers%% *}" != "${new_routers}" ]; then if_metric=${if_metric:-1} fi # set default route for router in $new_routers; do ip -4 route add default via ${router} dev ${interface} \ ${if_metric:+metric $if_metric} >/dev/null 2>&1 if [ -n "$if_metric" ]; then if_metric=$((if_metric+1)) fi done fi # update /etc/resolv.conf make_resolv_conf else # flush all IPs from interface ip -4 addr flush dev ${interface} exit_with_hooks 2 fi ;; ### DHCPv6 Handlers # TODO handle prefix change: ?based on ${old_ip6_prefix} and ${new_ip6_prefix}? PREINIT6) # ensure interface is up ipv6_link_up_and_dad "$interface" # flush any stale global permanent IPs from interface ip -6 addr flush dev ${interface} scope global permanent ;; BOUND6|RENEW6|REBIND6) if [ "${new_ip6_address}" ]; then # set leased IP ip -6 addr add ${new_ip6_address} \ dev ${interface} scope global fi # update /etc/resolv.conf if [ "${reason}" = BOUND6 ] || [ "${new_dhcp6_name_servers}" != "${old_dhcp6_name_servers}" ] || [ "${new_dhcp6_domain_search}" != "${old_dhcp6_domain_search}" ]; then make_resolv_conf fi ;; DEPREF6) # set preferred lifetime of leased IP to 0 ip -6 addr change ${cur_ip6_address} \ dev ${interface} scope global preferred_lft 0 ;; EXPIRE6|RELEASE6|STOP6) if [ -z "${old_ip6_address}" ]; then exit_with_hooks 2 fi # delete leased IP ip -6 addr del ${old_ip6_address} \ dev ${interface} ;; esac exit_with_hooks 0
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