Commands by anhpht

Commands by anhpht (22)

sorted by

Find all files with setuid bit
This is sample output - yours may be different.
-2

find / -xdev $ -perm -4000 $ -type f -print0 | xargs -0 ls -l

anhpht · 2012-11-16 01:11:53 6
Create a file server, listening in port 7000

At client side: tar c myfile | nc localhost 7000 ##Send file myfile to server tar c mydir | nc localhost 7000 ## Send directory mydir to server
This is sample output - yours may be different.
19

while true; do nc -l 7000 | tar -xvf -; done

anhpht · 2011-10-26 23:43:51 14
List open IPv4 connections
This is sample output - yours may be different.
6

lsof -Pnl +M -i4

anhpht · 2011-10-26 15:14:23 6
Apply new patch for a directory (originDir)
This is sample output - yours may be different.
3

patch -p0 -i result.patch

anhpht · 2011-10-23 10:38:19 4
Create patch file for two directories
This is sample output - yours may be different.
3

diff -r -u originDir updateDir > result.patch

anhpht · 2011-10-23 10:36:55 4
Update file with patch

diff originalfile updatedfile > my.patch
This is sample output - yours may be different.
1

patch originalfile -i my.patch -o newfile; mv newfile originalfile

anhpht · 2011-10-23 08:51:36 6
Rsync two directories with filtered extensions
This is sample output - yours may be different.
5

rsync -rv --include '*/' --include '*.txt' --exclude '*' srcDir/ desDir/

anhpht · 2011-10-23 07:45:16 7
Run a command when a file is changed
This is sample output - yours may be different.
12

while inotifywait -e modify /tmp/myfile; do firefox; done

anhpht · 2011-10-23 02:34:04 7
Open virtual machine in ubuntu.qcow image

Boot without CD-Rom: qemu fedora.qcow -boot c -net nic -net user -m 196 -localtime
This is sample output - yours may be different.
-2

qemu -cdrom /dev/cdrom -hda ubuntu.qcow -boot d -net nic -net user -m 196 -localtime

anhpht · 2011-10-15 09:21:49 4
Create ubuntu.qcow image, limit size 10G
This is sample output - yours may be different.
-2

qemu-img create ubuntu.qcow 10G

anhpht · 2011-10-15 09:17:17 4
Create a Christmas tree with perl

Require: perl -MCPAN -e 'install Acme::POE::Tree' From: http://www.catonmat.net/blog/christmas-tree-in-the-shell/
This is sample output - yours may be different.
0

perl -MAcme::POE::Tree -e 'Acme::POE::Tree->new()->run()'

anhpht · 2011-10-13 10:33:31 14
Capture all tcp and udp packets in LAN, except packets coming to localhost (192.168.1.2)
This is sample output - yours may be different.
0

sudo tcpdump -n -i eth0 -w data.pcap -v tcp or udp and 'not host 192.168.1.2'

anhpht · 2011-10-12 00:20:52 4
Print out buddy name (aim) which has been capture in pcap
This is sample output - yours may be different.
0

tshark -r data.pcap -R "ip.addr==192.168.1.2 && ip.addr==64.12.24.50 && aim" -d tcp.port==443,aim -T fields -e "aim.buddyname" |sort |uniq -c

anhpht · 2011-10-11 15:38:26 4
Print all connections of a source IP address in pcap
This is sample output - yours may be different.
0

tshark -r data.pcap -R "ip.src==192.168.1.2" -T fields -e "ip.dst" |sort |uniq -c

anhpht · 2011-10-11 15:32:17 4
Extract infomation form pcap
This is sample output - yours may be different.
0

tshark -r data.pcap -zio,phs

anhpht · 2011-10-11 10:22:17 14
Create .pdf from .doc

sudo apt-get install wv tetex-extra ghostscript
This is sample output - yours may be different.
2

wvPDF test.doc test.pdf

anhpht · 2011-10-07 08:04:48 4
Create .pdf from .doc

sudo apt-get install cups-pdf
This is sample output - yours may be different.
13

oowriter -pt pdf your_word_file.doc

anhpht · 2011-10-07 08:04:21 8
Cut flv video from minute 19 to minute 20 using flvtool2

We should calculate the video duration to milliseconds, 1 minute = 60000 milliseconds
This is sample output - yours may be different.
1

flvtool2 -C -i 1140000 -o 1200000 input output

anhpht · 2011-03-10 04:31:38 3
Export usernames and passwords from sslstrip log
This is sample output - yours may be different.
0

grep -i -f password_tokens sslstrip.log | awk ' BEGIN { RS="&" } { print $1 }' | grep -i -f tokens_file

anhpht · 2010-12-18 15:42:00 5
Run netcat to server files of current folder
This is sample output - yours may be different.
1

Server side: while true; do tar cvzf - ./* | nc -l 2000; done, client side: nc localhost 2000 | tar xvzf -

anhpht · 2010-12-14 10:12:13 5
Join avi files
This is sample output - yours may be different.
0

cat b1.avi b2.avi b3.avi b4.avi b5.avi b6.avi b7.avi > output.avi; mencoder -forceidx -oac copy -ovc copy output.avi -o output_final.avi; rm output.avi

anhpht · 2010-08-27 13:47:12 18
Join flv files
This is sample output - yours may be different.
1

mencoder -forceidx -of lavf -oac copy -ovc copy -o output.flv clip1.flv clip2.flv clip3.flv

anhpht · 2010-08-27 07:14:44 7

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

Verbosely delete files matching specific name pattern, older than 15 days.

Runs previous command replacing foo by bar every time that foo appears

To replace foo by bar, but not execute, do ^foo^bar^:p To replace all foo by bar, but not execute, do ^foo^bar^:&:p

Find broken symlinks and delete them

This command is adapted from http://otomaton.wordpress.com/2012/12/26/find-broken-symbolic-links/ Solutions with $ find -L don't work when the link is a loop, an error message is printed.

nice disk usage, sorted by size, see description for full command

full command below, would not let me put full command in text box du -sk ./* | sort -nr | awk 'BEGIN{ pref[1]="K"; pref[2]="M"; pref[3]="G";} { total = total + $1; x = $1; y = 1; while( x > 1024 ) { x = (x + 1023)/1024; y++; } printf("%g%s\t%s\n",int(x*10)/10,pref[y],$2); } END { y = 1; while( total > 1024 ) { total = (total + 1023)/1024; y++; } printf("Total: %g%s\n",int(total*10)/10,pref[y]); }'

Show one line summaries of all DEB packages installed on Ubuntu based on pattern search

I sometimes want to know what packages are installed on my Ubuntu system. I still haven't figured out how to use aptitude effectively, so this is the next best thing. This allows finding by name. The grep '^ii' limits the display to only installed packages. If this is not specified, then it includes listing of non-installed packages as well.

kill some pids without specific pid

pgrep, pkill - look up or signal processes based on name and other attributes

Using ASCII Art output on MPlayer

Not so useful. Just a cool feature.

Random numbers with Ruby

There's been a few times I've needed to create random numbers. Although I've done so in PERL, I've found Ruby is actually faster. This script generates 20 random "10" digit number NOT A RANDOM NUMBER. Replace 20 (1..20) with the amount of random numbers you need generated

Downmix first audio stream from 7.1 to 5.1 keeping all other streams

Useful for Roku which does not support 7.1. Useful resources: - https://trac.ffmpeg.org/wiki/Map - https://trac.ffmpeg.org/wiki/Encode/HighQualityAudio - https://superuser.com/questions/852400/properly-downmix-5-1-to-stereo-using-ffmpeg

shell bash iterate number range with for loop

Bash's arithmetic evaluation.

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 anhpht