Linux utils

Links

• https://cspotcode.com/posts/polyglot-powershell-and-bash-script

Learn multiplications

for i in {5..7}; do  for e in {5..7}; do echo "$i*$e=$(bc<<<$i*$e)" | spd-say -e ;sleep 2; done; done

Get sound update

watch -n 10 'mycommand && spd-say done || echo "no"'

Know type of partition

df -Th

Legend :

• -T : --print-type
• -h : --human-readable

Change partition

fdisk /dev/sda

# touch d for delete partition

# touch n for new partition

Format partition

mkfs.vfat /dev/sda1

Use dd to copy an ISO

dd if=file.iso of=/dev/sda bs=1M status=progress

Legend :

• if : input file
• of : output file
• bs : block size

Copy file to clipboard

xclip -sel c < input_file

Reference: https://stackoverflow.com/a/62168635

Show listening ports

ss -ptulwn | grep LISTEN

Change the pager

Change the pager of man :

export PAGER=less

Download urls

cat a | while read f; do curl -L -b 'cookie=value' -O -J "${f}"; done

Cron helper

• https://crontab.guru/

screen command

# start new "infinite" shell - read the manual for more info
# CTRL + A then "D" to leave
screen

# list screens shell
screen -ls

# resume screnn shell
screen -r <screen_id>

Alternatives:

• https://www.byobu.org/
• https://github.com/tmux/tmux

iftop

sudo iftop -s wlp0
# change to your interface

slock

slock

aspell

aspell -l en -c file.txt

qemu

• https://wiki.debian.org/KVM

apt install qemu-system libvirt-daemon-system
adduser $USER libvirt
apt install virt-manager # nice GUI