Commands by qdrizh

Commands by qdrizh (13)

sorted by

sed 's:.*/::'

FQPN - Path = Filename
This is sample output - yours may be different.
0

Print everything after last slash

qdrizh · 2016-08-17 07:10:33 44
Set blanket packet/second limit on network interface for Ubuntu VPS server

VPS server hosts suspect DOS attack if PPS is too high. This limits packets at the interface level. Do "sudo apt-get install iptables-persistent" to make persistent, or, if you already have, reconfigure with "sudo dpkg-reconfigure iptables-persistent" Show Sample Output
This is sample output - yours may be different.
```
Chain INPUT (policy ACCEPT)
target     prot opt source               destination         
ACCEPT     all  --  anywhere             anywhere             limit: avg 2000/sec burst 5
DROP       all  --  anywhere             anywhere  
```
1

sudo iptables -A INPUT -m limit --limit 2000/sec -j ACCEPT && sudo iptables -A INPUT -j DROP

qdrizh · 2015-03-09 20:16:17 8
Merge bash terminal histories
This is sample output - yours may be different.
1

echo 'export PROMPT_COMMAND="history -a; history -c; history -r; $PROMPT_COMMAND"' >> .bashrc

qdrizh · 2015-03-09 19:57:56 8
Convert flv without re-encoding
This is sample output - yours may be different.
1

avconv -i ka-ching.flv -acodec copy -vcodec copy ka-ching.mkv

qdrizh · 2015-01-11 06:36:00 9
Move all located items to folder

Find all books on my systems and move them into folder. The -0 switches are to handle spaces etc. in the filenames. Why would you need this? Locate uses an index, so it's super quick, and xargs is more elegant than a for loop.
This is sample output - yours may be different.
0

locate -0 -i *barthes* | xargs -0 mv -t ~/'Library/Books/Barthes, Roland'

qdrizh · 2014-11-16 18:26:35 11
Show most common words in filenames

I'm sure there's a more elegant sed version for the tr + grep section.
This is sample output - yours may be different.
3

ls | tr '[[:punct:][:space:]]' '\n' | grep -v "^\s*$" | sort | uniq -c | sort -bn

qdrizh · 2014-10-14 09:52:28 9
Recursively convert all APE to FLAC

Converts all monkey audio files below currently directory to FLAC. For only current directory, use `for f in *.ape; do avconv -i "$f" "${f%.ape}.flac"; done` To remove APE files afterward, use `rm */*.ape`
This is sample output - yours may be different.
0

for f in */*.ape; do avconv -i "$f" "${f%.ape}.flac"; done

qdrizh · 2014-10-10 12:33:00 8
Take a PDF with form fields and create a flattened PDF that will print properly

Some PDF viewers don't manage form fields correctly when printing. Instead of treating them as transparent, they print as black shapes.
This is sample output - yours may be different.
0

pdftk fill_me_in.pdf output no_thanks.pdf flatten

qdrizh · 2014-09-30 09:59:46 6
Create video clip from single image.

Creates a 2 second video clip from an image.
This is sample output - yours may be different.
0

avconv -loop 1 -i company-logo-1920x992.png -t 2 -r 2 logo.avi

qdrizh · 2014-09-23 09:31:43 8
Mount Windows fileshare on a domain from bash
This is sample output - yours may be different.
0

mount -t cifs -o username=SlackerMojo,domain=BIGGREEDY,rw //192.168.4.24/f /mnt/storage

qdrizh · 2014-07-21 09:31:19 7
Re-encode all flac files below

Sometimes I get FLAC files that RhythmBox can't play but VLC can. So I re-encode them using GStreamer at highest compression.
This is sample output - yours may be different.
0

find . -type f -iname '*.flac' | while read i; do mv -- "$i" "$i.tmp"; gst-launch filesrc location="$i.tmp" ! flacdec ! flacenc quality=8 ! filesink location="${i%.tmp}"; rm -- "$i.tmp"; done

qdrizh · 2014-07-10 19:21:22 7
Crop PDF with trim

This will crop each page of the PDF by 10mm left, 11cm bottom, 22pts right, and nothing from the top.
This is sample output - yours may be different.
0

pdfjam --clip true --trim '10mm 11cm 22pts 0' m.pdf

qdrizh · 2014-07-08 10:57:54 8
Find 10 largest files in git history
This is sample output - yours may be different.
1

git verify-pack -v .git/objects/pack/pack-*.idx | grep blob | sort -k3nr | head | while read s x b x; do git rev-list --all --objects | grep $s | awk '{print "'"$b"'",$0;}'; done

qdrizh · 2014-06-25 07:37:24 6

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

backup delicious bookmarks

Useful script to backup all your delicious bookmarks. With decilicious shutting down soon , it could be useful

Google text-to-speech in mp3 format

list block devices

Shows all block devices in a tree with descruptions of what they are.

Find usb device in realtime

Using this command you can track a moment when usb device was attached.

Block all IPv4 addresses that has brute forcing our ssh server

For ipv6 use: grep -oE "\b([0-9A-Fa-f]{1,4}:){7}[0-9A-Fa-f]{1,4}\b"

Mount windows share to the specified location including credentials

Replace IP address with yours IP.

Watch the size of a directory using figlet

You can substitute /home/$USER with any path you like.

Adjust display hardware brightness [dbus way]

Fast portscanner via Parallel

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"

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)
» commands by qdrizh