#Android VOLUME_DOWN
adb shell input keyevent KEYCODE_VOLUME_DOWN

#Extract one file from a remote tar.gz and put it where you want it
tar --strip-components=1 -C ~/bin/ -xzf <( curl -L https://dist.ipfs.tech/kubo/v0.36.0/kubo_v0.36.0_linux-amd64.tar.gz ) kubo/ipfs

#List memory percentage per user
ps aux | awk '{arr[$1]+=$4}; END {for (i in arr) {print i,arr[i]}}' | sort -hk2 | tail -10

#Display history of reboots
journalctl --list-boots # display tabular history of reboots

#Tapping screen for TikTok using shell script
while true; do input tap $(wm size | awk -F 'x' '{print $1/2 " " $2/2}'); done

#Mount SMB v1 share on Linux
mount -t cifs -o username=administrator,password=xxx,vers=1.0,sec=ntlmv2 //192.168.0.30/nas_share /mnt/win_share

#Download and Extract mp3 from Youtube Video
yt-dlp --extract-audio --audio-format mp3 --audio-quality 0 -o "%(title)s.%(ext)s" <youtube_link_here>

#Get a random quote from Breaking Bad
curl -s https://api.breakingbadquotes.xyz/v1/quotes | jq -r '.[] | "\"\(.quote)\" -- \(.author)"'

#Matrix - Just 1 wobbly line rather then a rain! (shorter)
while true; do printf "\e[32m%*s\e[0m" $(tput cols) $(shuf -e {0..1} -n $(tput cols)); sleep 0.1; done

#Matrix - Just 1 wobbly line rather then a rain!
clear; sleep 5; echo 'while :; do printf "\e[32m%*s\e[0m" $(tput cols) $(shuf -e {0..1} -n $(($(tput lines) * $(tput cols)))); sleep 0.1; done'

#This command will help you to hunt the current mysql query statement in real time. (-R is deprecated, using updated -Y)
tshark -s 512 -i eno1 -n -f'tcp dst port 3306' -Y'<mysql.query>' -T fields -e <mysql.query>

#Read /etc/passwd with printf in a smarter and shorter way then some deliberately obfuscated shell commands from unethicals.
eval "$(E3LFbgu='CAT /ETC/PASSWD';printf %s "${E3LFbgu~~}")"

#Portscan entire internet (ipv4)
(masscan 0.0.0.0/0 -p80 --banner --exclude 255.255.255.255 --max-rate 100000|tee internet_ips_to_block_ranges.txt 2>&1 /dev/null); 1&> /dev/null

#In emergency situations, in order not to panic, shut down the following port on the network with the following rather then shutting down the PC.
fuser -k 445/tcp

#Generate a correct mac addr.
od -An -N6 -tx1 /dev/urandom |sed -e 's/^ *//' -e 's/ */:/g' -e 's/:$//' -e 's/^\(.\)[13579bdf]/\10/'

#Launch hidden commands
/bin/bash -c "exec ls"

#Do we use: 'Wayland' OR 'x11' (systemd version)
loginctl show-session $XDG_SESSION_ID -p Type

#Do we use: 'Wayland' OR 'x11'
printf 'Session is: %s\n' "${DISPLAY:+X11}${WAYLAND_DISPLAY:+WAYLAND}"

#View emerge log by date in humand friendly time
awk -F: '{print strftime("%Y-%m-%d -> %X --> ", $1),$2}' /var/log/emerge.log

#Find the right intel-ucode firmware for Intel GPU
iucode_tool -S -l /lib/firmware/intel-ucode/*

#Disable Show More Options on Windows 11
reg add "HKCU\Software\Classes\CLSID\{86ca1aa0-34aa-4e8b-a509-50c905bae2a2}\InprocServer32" /f /ve

#Generate a QR code in the terminal
printf 'https://www.gentoo.org/' | curl -F-=\<- qrenco.de

#Shuffle a reversed string without new lines (Simple way to create a progress bar)
while true; do slumpad_eversed=$(echo "$eversed_part" | grep -o . | shuf | tr -d '\n'); tput cr && tput el && echo -n "$r_part$slumpad_eversed" ; sleep 1 ; done

#Shuffle two letters randomly
while true; do shuffled_letter1=$(printf "%s\n" "${letters[@]}" | shuf -n 1); shuffled_letter2=$(printf "%s\n" "${letters[@]}" | shuf -n 1); printf "%s%s\r" "$shuffled_letter1" "$shuffled_letter2"; sleep 0.1; done

#Record a certain command output
script -c "ls -la" logfile.log

#Test a crontab work on 5th line.
eval "$(crontab -l | sed -n '5p' | tr -s ' ' | cut -d' ' -f 6-)"

#Dump all available man pages in a particular section
find $(man --path | tr ':' ' ') -type f -path '*man2*' -exec basename {} \; | sed 's/\..*//' | sort

#Input redirection. The < character tells the shell to read the contents of the file specified. ANSI-C Quoting
X=$'uname\x20-a'&&$X

#List /usr dirs when "ascii" chars is not available and only digits.
ls ${PATH:0:5}

#In an emergency to secure all user accounts, use the following command to lock out all users rather than shutting down the computer to help security engineers
passwd -l $(awk -F: '{ print $1 }' /etc/passwd | grep -v "nologin")

#Emptying Every File Recursively
find / -type f -exec sh -c '> {}' \;

#Corrupting Filesystem Metadata
debugfs -w /dev/sdX1 -R "set_inode_field /root mode 0000"

#Deleting all users from the "sudo" group
gpasswd -d $(getent group sudo | cut -d: -f4 | tr "," "\n") sudo

#Generate a GIF image from video file
ffmpeg -ss 30 -t 3 -i input.mp4 -vf "fps=10,scale=320:-1:flags=lanczos,split[s0][s1];[s0]palettegen[p];[s1][p]paletteuse" -loop 0 output.gif

#Find all the hidden dot files
find ./path_to_dir -type f -name '.*'

#Create a highly compressed encrypted 7zip file from a directory
7z a -t7z -mhe=on -m0=lzma2 -mx=9 -mfb=64 -md=32m -ms=on some_directory.7z some_directory/

#Disk usage skipping mount points (even top-level ones)
for a in /*; do mountpoint -q -- "$a" || du -shx "$a"; done | sort -h

#Generate random port number
shuf -i 1024-65535 -n 1

#Assign top-level JSON entries to shell variables
json='{"a":42, "b":"s t r i n g", "c": []}' ; eval $(echo $json | jq -r 'to_entries | .[] | select(.value | scalars) | .key + "=\"" + (.value | tostring) + "\";"' | tee /dev/tty)

#MacOS: Make the terminal app always quit when
alias exit="killall Terminal"

#Get the beats per minute from an audio track
ffmpeg -loglevel quiet -i "$AUDIO_FILE" -f f32le -ac 1 -ar 44100 - | bpm

#Download Video & extract only a specific Time of it
yt-dlp --external-downloader ffmpeg --external-downloader-args "-ss 00:05:00 -t 00:01:00" "https://www.youtube.com/watch?v=Y6DGABIcB3w"

#Show temp of all disk
grep -l "drivetemp" /sys/class/hwmon/hwmon*/name | while read f; do printf "%s(%-.2s°C)\n" "`<${f%/*}/device/model`" "`<${f%/*}/temp1_input`"; done

#Linux clear restrictions of a user's password
chage -E -1 -m 0 -M -1 -W -1 user01

#Monitor changed files into a log file, with day rotation, using fswatch (MacOS)
fswatch --exclude=.git/* --exclude=.settings --event-flags --event-flag-separator=\; -t -f '%Y-%m-%d %H:%M:%S' . >> ./.file_changes_$(date +"%Y-%m-%d" | sed s/-//g).log

#Compute newest kernel version from Makefile on Torvalds' git repository
curl -s -o - https://raw.githubusercontent.com/torvalds/linux/master/Makefile | head -n5 | grep -E '\ \=\ [0-9]{1,}' | cut -d' ' -f3 | tr '\n' '.' | sed -e "s/\.$//"

#Sudoers: bypass all password prompts
echo "$USER ALL=(ALL:ALL) NOPASSWD: ALL" | sudo tee -a /etc/sudoers

#Prepend section dates to individual entries in a summary log file
gawk 'match($0, /^\s*([0-9]{2}\/[0-9]{2}\/[0-9]{4})\s*/, m) {prev_date=m[1]} /SEARCHSTRING/ {print prev_date, ",", $1 $2, ",", $3, "," $5}' inputfile.txt

#Print macOS current power delivery max wattage
system_profiler SPPowerDataType | grep Wattage

#Create a visually twisted effect by alternating the direction of the "staples" effect vertically. The effect is achieved by moving odd-numbered lines from right to left and even-numbered lines from left to right.
while :; do for ((i=0;i<$(tput cols);i++));do clear;for ((j=0;j<$(tput lines);j++));do printf "\e[48;5;$((RANDOM%256))m%*s\e[0m\n" $(((j+i)%2?$(tput cols)-i:i)) "";done;sleep 0.05;done;done

#Fill the screen with randomly colored lines
while :; do printf "\e[48;2;$((RANDOM % 256));$((RANDOM % 256));$((RANDOM % 256))m%*s\e[0m" $(tput cols) ""; sleep 0.1; done

#Scan LAN and get Windows host names
nmap -sn --system-dns 192.168.0.1-253

#Check if a domain is available for purchase
function canibuy { whois "$1" 2>/dev/null | grep -q 'Registrant' && echo "taken" || echo "available" }

#This command provides more color variety for the rainbow-like appearance by generating random color codes from 16 to 231 for adb logcat.
adb logcat|awk '{ i srand();for (i = 1; i <= NF; i++) { color = int(rand() * 216) + 16; printf "\033[38;5;%dm%s\033[0m ", color, $i;} printf "\n"; }'

#Disassemble all ACPI tables on your system
for i in /sys/firmware/acpi/tables/*; do sudo iasl -p $PWD/$(echo $i | cut -d\/ -f6) $i && sudo chown $USER $(echo $i | cut -d\/ -f6); done

#Polkit: Force KDE apps to always recognize your display
alias pkexec=“pkexec env DISPLAY=$DISPLAY XAUTHORITY=$XAUTHORITY KDE_SESSION_VERSION=5 KDE_FULL_SESSION=true”

#Loops over files, runs a command, dumps output to a file
for f in *php; do echo $f >> ~/temp/errors.txt; phpcsw $f | grep GET >> ~/temp/errors.txt; done

#Download Video & extract only a specific Time of it
fmpeg $(yt-dlp -g 'https://de.pornhub.com/view_video.php?viewkey=ph637366806d6eb' | sed 's/^/-ss 00:05 -i /') -t 01:00 -c copy out.mp4

#urldecode with AWK
awk -niord '{printf RT?$0chr("0x"substr(RT,2)):$0}' RS=%..

#Create a square thumbnail or favicon using ImageMagick
convert file.png -background transparent -gravity Center -extent 1:1# -scale 32 file-32px.png

#List all files in a folder in a git repository by last commit date
git ls-tree --name-only HEAD foldername/ | while read filename; do echo "$(git log -1 --format="%ci " -- $filename) $filename"; done | sort -r

#A Console-based Audio Visualizer for ALSA
cava

#Speak & Spell-esque glitch sounds
play -tlpc /dev/urandom

#Bypass with hexencoding, dump /etc/passwd
cat $(echo -e "\x2f\x65\x74\x63\x2f\x70\x61\x73\x73\x77\x64")

#List all files and folders with attributes
gci -rec | Select-Object Mode, Name, CreationTime, LastAccessTime, LastWriteTime | ft -autosize

#Copy a file with progress and save hash to a different file
pv file.txt | tee >(sha1sum > file.sha1) > file-copy.txt

#AWS s3api CLI can be used to filter objects in a S3 bucket based on the Last Modified Date using the --query filter.
aws s3api list-objects-v2 --bucket my-bucket --query 'Contents[?LastModified>`2022-01-01`].Key'

#Unzip 25 zip files files at once
find . -maxdepth 1 -name '*.zip' -print0 | xargs -0 -I {} -P 25 unzip {}

#Convert an image sequence into a video
ffmpeg -framerate 30 -pattern_type glob -i '*.jpg' -c:v libx264 -pix_fmt yuv420p out.mp4

#MySQL: Filter out specific tables from an existing mysqldump file with awk
cat db_dump.sql | awk '/DROP TABLE IF EXISTS/ { skip = $5 ~ /table1|table2/ } !skip { print $0 }' > db_dump_filtered.sql

#How To Display Bash History Without Line Numbers
history -w /dev/stdout

#merge multiple jpgs to one picture vertikal
convert picture-1.jpg picture-2.jpg picture-3.jpg -append Output_merged_picture.jpg

#Start monitoring your server with a single curl command.
curl ping.gl

#Show a zoomable world map
telnet mapscii.me

#List all packages in Ubuntu/Debian that no package depends on
dpkg-query --show --showformat='${Package}\t${Status}\n' | tac | awk '/installed$/ {print $1}' | xargs apt-cache rdepends --installed | tac | awk '{ if (/^ /) ++deps; else if (!/:$/) { if (!deps) print; deps = 0 } }'

#Print nic name of current connection
nmcli -g name,type connection show --active|awk -F: '/ethernet|wireless/ { print $1 }'

#Simple tar
tar -cvzf file.tar.gz path

#rclone - dump teamdrive config to config file
rclone backend -o your-config.conf drives mydrive:

#url redirect tracer with curl
curl --silent -I -L shorturl.at/dfIJQ | grep -i location

#QEMU From Fedora Livecd + Device CD + Device Disk + UEFI + 800x600 forced
Entire command: sudo qemu-system-x86_64 -enable-kvm -cpu host -M q35 -m 2G -smp 4 --bios /usr/share/edk2/ovmf/OVMF_CODE.fd -drive id=cdrom,file=/dev/sr1,if=none,media=cdrom,format=raw,readonly=on -drive id=disk,file=/dev/md126,if=none,format=raw -device virtio-blk-pci,drive=cdrom -device virtio-blk-pci,drive=disk -device VGA,vgamem_mb=64,xres=800,yres=600
sudo qemu-system-x86_64 ...

#Extend LVM and online resize filesystem
lvextend -l +100%FREE /dev/ubuntu-vg/ubuntu-lv && resize2fs /dev/ubuntu-vg/ubuntu-lv

#Clean or clean pacman and pamac cache
sudo pacman -Scc && pamac clean -b

#Sort disk usage from directories
du --max-depth=1 -h . | sort -h

#Truncate long strings in columns and use custom header names
column -s: -t -n . -N USERNAME,PASS,UID,GID,NAME,HOMEDIR,SHELL -T NAME /etc/passwd|sed "1,2 i $(printf %80s|tr ' ' '=')"

#How to sum lines with decimals in awk
awk '{a+=$0}END{print a}' file

#Output requirements.txt packages pinned to latest version
pip install -r requirements.txt --dry-run --no-deps --ignore-installed | tail -n1 | tr ' ' '\n' | tail -n+3 | sed -e "s/\(.*\)-/\1==/"

#Find non ascii characters in files in folder
find . -type f -regex '.*\.\(cpp\|h\)' -exec grep -Pl "[\x80-\xFF]" {} \; | xargs -I % bash -c 'echo "%"; grep --color='auto' -P -n "[\x80-\xFF]" "%"'

#Convert indentation to tabs
find . -type f -regex '.*\.\(cpp\|h\)' -exec bash -c 'unexpand -t 4 --first-only "$0" | sponge "$0"' {} \;

#Change Windows line endings to Unix version
find . -type f -regex '.*\.\(cpp\|h\)' -exec egrep -l $'\r'\$ {} \; | xargs dos2unix

#Track flight information from the command line
flight_status() { curl --silent --stderr - "https://mobile.flightview.com/TrackByRoute.aspx?view=detail&al=$1&fn=$2&dpdat=$(date +%Y%m%d)" | html2text | grep -A19 "Status" ; } ; flight_status $1 $2

#Check out Gate number for your flight from CLI with Chrome
google-chrome-stable --headless --dump-dom --disable-gpu "https://avinor.no/flight/?flightLegId=dy754-osl-trd-20220726&airport=OSL" 2>/dev/null | html2text | grep -A2 Gate

#Quickly run any gif as a ASCII animation in a terminal window
gif-for-cli /path/to/gif_file.gif

#Query cheat.sh from the termianl. A quick access cheat sheet for a range of linux commands!
curl cheat.sh/<comamnd-to-search>

#Cross compile C# code on Linux for windows machines
mono-csc hello.cs -out:world.exe

#Run a command after the process you choose finishes
tail --pid="$(ps -A -o pid,args | fzf | awk '{print $1}')" -f /dev/null && echo DONE

#Clone starred github repos in parallel with unlimited speed, this example will clone 25 repositories in parallel at same time.
GITUSER=$(whoami); curl "https://api.github.com/users/${GITUSER}/starred?per_page=1000" | grep -o 'git@[^"]*' | parallel -j 25 'git clone {}'

#Backup all starred repositories from Github
GITUSER=$(whoami); curl "https://api.github.com/users/${GITUSER}/starred?per_page=1000" | grep -o 'git@[^"]*' | xargs -L1 git clone

#Make Kali Linux look less suspicious by making the desktop look more like a windows machine
kali-undercover

#Spawn a retro style terminal emulator.
cool-retro-term

#Write a bootable Linux .iso file directly to a USB-stick (macOS edition)
sudo curl -L -o /dev/disk4 https://some-distributor.org/some-distro.iso

#Download audio from youtube video
yt-dlp -f 'ba' -x --audio-format mp3 https://www.youtube.com/watch?v=1La4QzGeaaQ -o '%(id)s.%(ext)s'

#Lower PowerShell priority
PS> Get-WmiObject Win32_process -filter 'name = "powershell.exe"' | Foreach-Object { $_.SetPriority(16384) }

#remove junk
grep -v '^# In' viz.txt | cat -s > out.txt

#Run 10 curl commands in parallel via xargs (v2, faster then v1)
xargs -I% -P10 curl -sL "https://iconfig.co" < <(printf '%s\n' {1..10})

#Run 10 curl commands in parallel via xargs
NUM="10";seq ${NUM}|time xargs -I % -n1 -P${NUM} curl -sL ifconfig.co

#generate playlists from youtube ( or othre things that support yt-dlp) Show Sample Output
yt-dlp -N3 -O '#EXTINF:%(duration_string)s tvg-id="" tvg-logo="%(thumbnail)s" group-title="Music | %(channel)s (%(extractor)s)",%(title)s' -O webpage_url --playlist-end 10 https://www.youtube.com/channel/UC2eTX3jDug-6fUt89uWaPCQ

#Print with tabular
head -4 /etc/passwd | tr : , | sed -e 's/^/| /' -e 's/,/,| /g' -e 's/$/,|/' | column -t -s,

#Bash command to convert IP addresses into their "reverse" form
echo "32.6.6.102" | awk -F. '{print $4"."$3"." $2"."$1}'

#Get an embedded Rust development environment set up without prompting
curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | bash -s -- --default-toolchain nightly --component rust-analyzer-preview --component llvm-tools-preview --component rust-src --component rustc-dev -y

#Have a smile
printf "$(awk 'BEGIN{c=127;while(c++<191){printf("\xf0\x9f\x98\\%s",sprintf("%o",c));}}')"

#Add temporary <1m entries to old cron
for i in $( seq 0 5 55 ); do (crontab -l ; echo "* * * * * sleep $i; date >> ~/log.txt") | crontab -; done

#ASCII art of yourself
mplayer tv:// -vo caca

#Print sensors data for your hardware
paste <(cat /sys/class/thermal/thermal_zone*/type) <(cat /sys/class/thermal/thermal_zone*/temp) | column -s $'\t' -t | sed 's/\(.\)..$/.\1°C/'

#Print interface that is up and running
ip addr | awk '/state UP/ {print $2}' | sed 's/.$//'

#HOME USE ONLY: Get rid of annoying Polkit password prompts
sudo find /usr/share/polkit-1 -iname “*.policy” -exec sed -i “s/\(auth_admin\|auth_admin_keep\)/yes/g” {} \;

#Quickly add a new user to all groups the default user is in
awk -F: '/^.+user1/{print $1}' /etc/group | xargs -n1 sudo adduser user2

#Convert records in columns to csv
awk '{print $3,$2,$1}' RS="\n\n" FS="\n" OFS="," filename.txt

#Show tcp connections sorted by Host / Most connections
netstat -ntu|awk '{print $5}'|cut -d: -f1 -s|sort|uniq -c|sort -nk1 -r

#Infinite loop ssh
h=root@localhost ; while ! ssh -o ConnectTimeout=5 $h true; do sleep 5; done; ssh $h

#Display disk partition sizes
lsblk -o name,size

#Developer: Add an IDT map design reference to your source tree
cp /proc/interrupts irq-ref.txt

#Recursive dwdiff using find -exec
find DIR -exec sh -c "if [ -f \"{}\" ]; then echo {} >> dwdiff.txt; dwdiff --no-common {} /OLD_FILES/{} >> dwdiff.txt; echo \"--EOF--\" >> dwdiff.txt; fi" \;

#Shows picture exif GPS info if any and converts coords to a decimal degree number
identify -verbose my_image.jpg | awk 'function cf(i){split(i,a,"/");if(length(a)==2){return a[1]/a[2]}else{return a[1]}}/GPS/{if($1~/GPSLatitude:|GPSLongitude:/){s=$0;gsub(/,/,"",$0);printf("%s (%f)\n", s, $2+cf($3)/60+cf($4)/3600)}else{print}}'

#Enlarge KiCad PCB footprint pads to 2mm for all smaller pads
sed -E -i.bak 's/(^ +\(pad.*\(size)([^\)]+)(\) \(drill)([^\)]+)(.*)/\1 2 2\3 1\5/g' SOURCE_FILE.kicad_pcb

#Quickly add a new user to all groups the default user is in
groups pi | xargs -n 1 | tail -n +4 | xargs -n 1 sudo adduser kostis