LINUXOPOLIS # 1,044

vim-configuration tmux-configuration tmux-installation                                     2020
atom raspberry-pi tmux-windows ranger pycharm language jupyterlab systemd fail2ban         2020
weather fzf find neofetch taskwarrior-session taskwarrior-installation tmux-panes          2020
inxi tmux-sessions tmux ssh raspi-documentation fish-documentation fish-functions          2020
fish-configuration time fish-installation rsync raspi-installation dhcp system-rescue-cd   2020
cpu awk tutorials user-management history disk-management dns oneliner apt                 2020
system-update debian ramdisk ntp monitoring host-configuration vim-cheatsheet networking   2020
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tasks check shortcuts ide arp system-editor sources packages apache baseline host i3 wm    2019
python swap glances veracrypt flatpak logging docker snap tiddlywiki tails firefox         2019
firmware vim prompt aliases howto container git bash snippets screen hardening html java   2019
arch                                                                                       2019

/dev/null        $ cat /dev/null > file.txt
/etc/passwd      $ cat /etc/passwd | cut -d: -f7 | sort | uniq -c | sort -nr
/etc/shells      $ cat /etc/shells
/proc/interrupts $ watch -d cat /proc/interrupts                             // interrupts
/proc/ioports    # cat /proc/ioports | less                                  // ioports

alias            $ alias ea='vim ~/.bash_aliases && source ~/.bash_aliases'
apropos          $ apropos password | less
apt              # apt install supertuxkart
arp-scan         # arp-scan --localnet | vim -

cat              $ cat > text.txt <<HERE
cups             # nc -z 127.0.0.1 631 && echo ok || echo failed
curl             $ curl cheat.sh/:list | less
curl             $ curl wttr.in

date             bash $ echo "It is now $(date +%T) on $(date +%A)"
date             fish $ echo It is now (date +%T) on (date +%A)
dpkg             $ dpkg --list
dpkg             $ dpkg --list| fzf

efibootmgr       # efibootmgr

firmware         # ls /sys/firmware/efi
free             # watch free -h

grub             # grub-install

history          $ history search --contains 'vim'
history          $ history | fzf

lsof             # lsof -u user | fzf
lsof             # lsof -u user | vim -
lspci            $ clear; lspci; echo; lspci -t; echo                        // pci
lsusb            $ clear; lsusb; echo; lsusb -t; echo                        // usb

mail             $ watch mail
memory           $ ps axch -o cmd:15,%mem --sort=-%mem | sed 10q
memtester        # memtester 7G
mkdir            # mkdir -p /mnt/ram; mount -t tmpfs tmpfs /mnt/ram -o size=8192M
mkdir            $ mkdir -p Backups/{Sales,Development,HR}/{Jan,Feb,Mar,Apr,May,Jun,Jul,Aug,Sep,Oct,Nov,Dec}/{Sun,Mon,Tue,Wed,Thu,Fri,Sat}
mkdir            $ mkdir -p dummy/{1..100}/{1..100}
mount            $ mount | column -t
mpg123           $ mpg123 -zvC /home/user/music/*

nc               # nc -z 127.0.0.1 631 && echo ok || echo failed             // cups
nc               # nc -z 127.0.0.1 80 && echo ok || echo failed              // apache
netstat          # netstat -tulpn
ntpq             $ watch ntpq -p

pip              $ sudo -H pip install --upgrade youtube-dl
printenv         $ printenv | awk '/^PATH|HOME|USER|SHELL/ {print $0}'
processes        $ ps axch -o cmd:15,%cpu --sort=-%cpu | sed 10q

ranger           $ ranger /etc/
ranger           $ ranger /usr/share/doc/
ranger           $ ranger ~/.local/share/Trash/

scp              $ scp -r folder/ [email protected]:~
scp              $ scp file.txt [email protected]:/home/pi/
scp              $ scp [email protected]:/home/pi/file.txt . 
systemctl        # systemctl status|restart|start|stop|enable|disable
systemctl        $ systemctl status apache2

timedatectl      $ timedatectl
tuptime          $ tuptime -t                                                // table
tuptime          $ watch tuptime

usermod          # usermod -aG group1,group2,group3 username

vim              $ vim $(fzf --height 40%)
vim              $ vim $(fzf -e --preview 'head -100 {}')
vim              > export EDITOR=vim 
vim              > export VISUAL=vim 

watch            $ watch -d -n 5 ls -l
whatis           $ whatis passwd

SOURCES
 arch-linux ................. archlinux.org
 debian ..................... debian.org
 mx-linux ................... mxlinux.org
 picture .................... screenshoot by me ~ my gnome-desktop