| #EXTM3U | |
| #EXTINF:-1,BBC - Radio 1 | |
| http://as-hls-ww-live.akamaized.net/pool_904/live/ww/bbc_radio_one/bbc_radio_one.isml/bbc_radio_one-audio%3d96000.norewind.m3u8 | |
| #EXTINF:-1,BBC - Radio 1Xtra | |
| http://as-hls-ww-live.akamaized.net/pool_904/live/ww/bbc_1xtra/bbc_1xtra.isml/bbc_1xtra-audio%3d96000.norewind.m3u8 | |
| #EXTINF:-1,BBC - Radio 1Dance | |
| http://as-hls-ww-live.akamaized.net/pool_904/live/ww/bbc_radio_one_dance/bbc_radio_one_dance.isml/bbc_radio_one_dance-audio%3d96000.norewind.m3u8 | |
| #EXTINF:-1,BBC - Radio 1Relax | |
| http://as-hls-ww-live.akamaized.net/pool_904/live/ww/bbc_radio_one_relax/bbc_radio_one_relax.isml/bbc_radio_one_relax-audio%3d96000.norewind.m3u8 | |
| #EXTINF:-1,BBC - Radio 2 |
| nameserver=$(grep -m 1 nameserver /etc/resolv.conf | awk '{print $2}') # find nameserver | |
| [ -n "$nameserver" ] || "unable to find nameserver" || exit 1 # exit immediately if nameserver was not found | |
| echo "##### nameserver found: '$nameserver'" | |
| localhost_entry=$(grep -v "127.0.0.1" /etc/hosts | grep "\slocalhost$") # find localhost entry excluding 127.0.0.1 | |
| if [ -n "$localhost_entry" ]; then # if localhost entry was found | |
| echo "##### localhost entry found: '$localhost_entry'" | |
| sed -i "s/$localhost_entry/$nameserver localhost/g" /etc/hosts # then update localhost entry with the new $nameserver | |
| else # else if entry was not found | |
| echo "##### localhost entry not found" | |
| echo "$nameserver localhost" >> /etc/hosts # then append $nameserver mapping to localhost |
| <?php | |
| /** | |
| * The following example combines Fat-Free Framework | |
| * with the PHP Debugger (Toolbar) Tracy. | |
| * | |
| * @see https://github.com/bcosca/fatfree/issues/999 | |
| */ | |
| use Tracy\Debugger; |
Below are many examples of function hoisting behavior in JavaScript. Ones marked as works successfuly print 'hi!' without errors.
To play around with these examples (recommended) clone them with git and execute them with e.g. node a.js
(I may be using incorrect terms below, please forgive me)
This is a collection of information on PostgreSQL and PostGIS for what I tend to use most often.
| " Teach vim to syntax highlight Vagrantfile as ruby | |
| " | |
| " Install: $HOME/.vim/plugin/vagrant.vim | |
| " Author: Brandon Philips <brandon@ifup.org> | |
| augroup vagrant | |
| au! | |
| au BufRead,BufNewFile Vagrantfile set filetype=ruby | |
| augroup END |
| RewriteEngine On | |
| RewriteRule ^(_app) - [F,L] | |
| RewriteRule ^(_config) - [F,L] | |
| RewriteRule ^(_content) - [F,L] | |
| RewriteRule ^(.*).yml$ - [F,L] | |
| RewriteRule ^(.*).yaml$ - [F,L] | |
| RewriteRule ^(.*).html$ - [F,L] | |
| RewriteRule ^(.*/)?\.git+ - [F,L] |
L1 cache reference ......................... 0.5 ns
Branch mispredict ............................ 5 ns
L2 cache reference ........................... 7 ns
Mutex lock/unlock ........................... 25 ns
Main memory reference ...................... 100 ns
Compress 1K bytes with Zippy ............. 3,000 ns = 3 µs
Send 2K bytes over 1 Gbps network ....... 20,000 ns = 20 µs
SSD random read ........................ 150,000 ns = 150 µs
Read 1 MB sequentially from memory ..... 250,000 ns = 250 µs
| Latency Comparison Numbers (~2012) | |
| ---------------------------------- | |
| L1 cache reference 0.5 ns | |
| Branch mispredict 5 ns | |
| L2 cache reference 7 ns 14x L1 cache | |
| Mutex lock/unlock 25 ns | |
| Main memory reference 100 ns 20x L2 cache, 200x L1 cache | |
| Compress 1K bytes with Zippy 3,000 ns 3 us | |
| Send 1K bytes over 1 Gbps network 10,000 ns 10 us | |
| Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD |