login i hasło

tcpdump port http or port ftp or port smtp or port imap or port pop3 -l -A | egrep -i \ 'pass=|pwd=|log=|login=|user=|username=|pw=|passw=|passwd=|password=|pass:|user:|username: \ |password:|login:|pass |user ' --color=auto --line-buffered -B20

1	ngrep '[&\s?](?:login|user(?:name|)|p(ass(?:word|wd|)|w|wd))[\s:=]\s?([^&\s]*)' -q -i

force a rescan on a scsi bus

echo "0 0 0" >/sys/class/scsi_host/host<n>/scan

sudo jednorazowo wprowadzone hasło dla sesji, nie pyta więcej

Defaults    env_reset,!tty_tickets

tworzenia patcha

diff -Naur plik1 plik2 > p.patch
patch -p1 < p.patch

włącz / wyłącz monitor

xset dpms force off
xset dpms force on
xset -q

naprawa grub

Linia poleceń "grub"
Wpisz root (hd0,2)  #partycja odpowiednia do partycji gruba
Wpisz setup (hd0)  # dysk
i wyjdź : quit

ciekawe zarządzanie aplikacjami w xach

Wmctrl provides command line access to almost all the features defined in the EWMH specification. For example it can maximize windows, make them sticky, set them to be always on top. It can switch and resize desktops and perform many other useful operations.

Record system output sound [pacat] (pulseaudio)

pacmd list | grep ".monitor"

"output.monitor"

pacat --record -d output.monitor | sox -t raw -r 44100 -e signed-integer -L -b 16 -c 2 - audio.wav

przydatna pętla w powłoce

watch

badblock

Test: read-write: patterns : 0xaa (10101010), 0x55 (01010101), 0xff (11111111) and 0x00 (00000000)

badblocks -wsv /dev/<device>

Test: read-write: random pattern

badblocks -wsv -t random /dev/<device>

Test: read-write [non-destructive]

badblocks -nsv /dev/<device>

fsck -vcck /dev/<device-part>

Create filesystem with badblocks

badblocks -wsv -o badblocks.txt /dev/<device>

mkfs.<fs> -l badblocks.txt /dev/<device>