cd ~/Library/Safari ; remove the Bookmarks.plist to remove annoying drop down of all visited site. sudo netstat -tpn | grep IP A fork is a repo. A repo can have multiple branches. A commit is for a branch. https://developer.cdn.mozilla.net/media/uploads/demos/s/u/summerstyle/365ccfd644f2b008c33f0046d2ba1a8f/summer-html-image-ma_1355318513_demo_package/index.html

tcpdump -i eth0 port 80
tcpdump -i eth0 port 80 -w dump.pcap
tcpdump -i eth0 port 80 -l | tee dump.pcap


grep whatever myfile | tee /dev/tty | wc -l

$ git reset --hard HEAD; 
  git clean -f -d ; 
  git pull; # force pull

$ grep -A 1 -B 1:
A (after)
B (before)
C (context [before + after])

$ tcpflow -i any -C -e port 1234  # As root, listen packets in a port

$ freeze > recover

alt + print screen + k
alt + print screen + re is ub

$ echo -e '#!/bin/bash\nsleep 50\nexport DISPLAY=:0.0\nxset s off\nxset -dpms' > /var/tmp/pp.sh; cat /var/tmp/pp.sh;

#!/bin/bash
sleep 50
export DISPLAY=:0.0
xset s off
xset -dpms

eth0 and eth1 - in and out traffic

$ ip rule add from 10.0.0.108/32 table 1
$ ip route add default via 10.0.0.1 dev eth0 table 1
$ ip rule add from 10.0.0.28/32 table 2
$ ip route add default via 10.0.0.1 dev eth1 table 2

except ssh other traffic from that source

$ tcpdump -vv src 54.2.2.1 and not dst port 22

Normal termination

killall -SIGHUP firefox
killall -SIGINT firefox

Non gracefull termination

killall -SIGKILL firefox

Qemu: qemu-system-x86_64 -enable-kvm -m 256 -usb /dev/sdc qemu-system-x86_64 -cdrom filename.iso qemu-system-x86_64 -hda /dev/sdx Ffmpeg: ffmpeg -i /home/sun/Desktop/Default\ Project.mpeg -b:v 300k -ar 8000 -ac 1 -s qcif -r 5 /home/sun/Desktop/pingpong.3gp # Mobile videos for small size:

ffmpeg -i /home/sun/Desktop/Valentine.mpeg -y -f vcd -vcodec mpeg1video -s 352x240 -r 29.97 -g 12 -qmin 3 -qmax 13 /home/sun/Desktop/movie.mpg

ffmpeg -i input.flv -vcodec libvpx -acodec libvorbis output.webm

Nice site:

• http://stuff.mit.edu/afs/sipb/machine/penguin-lust/src/socat-1.7.1.2/EXAMPLES
• http://www.brpreiss.com/books/opus7/programs/index.html
• http://golang.org/doc/GoCourseDay3.pdf
• http://tip.golang.org/doc/code.html
• http://golang.org/doc/codelab/wiki/
• http://nerds-central.blogspot.com/2011/03/understanding-jvm-performance-it-is.html
• http://www.brackeen.com/vga/index.html
• http://gskinner.com/RegExr/
• http://plugins.netbeans.org/plugin/5825/regexplugin

• http://shootout.alioth.debian.org/

• population link http://www.citypopulation.de/php/belgium-oostvlaanderen.php