$ man -k . | less
$ sed '/^$/d' dummy.txt
DOCUMENTATION
• $ man -k . | less
SESSION
• $ sudo !!
• # apt-get update && apt-get upgrade && apt-get dist-upgrade; apt-get autoremove -y
• # init 0
• # init 6
• # shutdown -c
• # shutdown -h 1:00
• # shutdown -r now
EDITOR
• # update-alternatives --config editor
• $ ctrl + xe
SERVICES
• # service --status-all | awk '/[+]/ { print $4 }' | tee /tmp/active.txt
• # service network-manager restart
LAN
• # arp-scan --localnet | awk '/192\.168\.0/ {print $0}' | tee hosts.txt
• # arp-scan --localnet | awk '/192\.168\.0/ {print $1}' | xargs nmap
D
• $ disown -a && exit
• # du -s /home/userxyz/* | sort -nr | head | awk 'BEGIN {printf "%12s %s\n", "SIZE", "PATH" } { printf "%12d %s\n", $1, $2 }' | tee /tmp/report.txt
• # dd if=/dev/zero of=dummy bs=1M count=8000
F
• $ fc
H
• $ history | awk '{a[$2]++}END{for(i in a){print a[i] " " i}}' | sort -rn | head
M
• # mkdir -p /mnt/ram; mount -t tmpfs tmpfs /mnt/ram -o size=8192M
• $ mkdir -p dummy/{1..100}/{1..100}
P
• $ ps f
S
• $ sed '/^$/d' dummy.txt