lifuzu

git filter-branch -f --commit-filter '
        if [ "$GIT_AUTHOR_EMAIL" = "[email protected]" -o  "$GIT_AUTHOR_EMAIL" = "[email protected]" ];
        then
                GIT_AUTHOR_NAME="User Name";
                GIT_AUTHOR_EMAIL="[email protected]";
                git commit-tree "$@";
        else
                git commit-tree "$@";
        fi' HEAD

lifuzu

var http=require("http");
http.createServer(function(req,res){
  res.writeHead(200,{"Content-Type":"text/plain"});
  res.end("Hello World\n");
}).listen(9124,"localhost");
console.log("The sweet thing is running on http://localhost:9124");

lifuzu

$ cat eve.py 
import eventlet
from eventlet import wsgi

class Logger(object):
  def info(self,*args,**kwargs):
    pass
  def debug(self,*args,**kwargs):
    pass

lifuzu

$ cat geve.py 
import gevent
from gevent import wsgi,pool
#the application to handle the response  
def app(environ,start_response):
  start_response("200 OK",[("Content-Type","text/plain")])
  return "Hello World\n"
if __name__=="__main__":
  print "The sweet thing is running on http://localhost:8912/"
  pool=gevent.pool.Pool() #A pool of greenlets.Each greenlets runs the above defined function app for a client request  

lifuzu

$ sysctl -A 
user.cs_path: /usr/bin:/bin:/usr/sbin:/sbin
user.bc_base_max: 99
user.bc_dim_max: 2048
user.bc_scale_max: 99
user.bc_string_max: 1000
user.coll_weights_max: 2
user.expr_nest_max: 32
user.line_max: 2048
user.re_dup_max: 255

lifuzu

USE mykeyspace;
SELECT * FROM task1_part2_group3_2 WHERE origin = 'BOS' AND through = 'ATL' AND dest = 'LAX' AND first_date = '03/04/2008';
SELECT * FROM task1_part2_group3_2 WHERE origin = 'PHX' AND through = 'JFK' AND dest = 'MSP' AND first_date = '07/09/2008';
SELECT * FROM task1_part2_group3_2 WHERE origin = 'DFW' AND through = 'STL' AND dest = 'ORD' AND first_date = '24/01/2008';
SELECT * FROM task1_part2_group3_2 WHERE origin = 'LAX' AND through = 'MIA' AND dest = 'LAX' AND first_date = '16/05/2008';

$ bash question3_2.sh 

 origin | through | dest | first_date | delay
--------+---------+------+------------+-------

lifuzu

USE mykeyspace;
SELECT origin, dest, carrier, average FROM task1_part2_group2_3 WHERE origin = 'LGA' AND dest = 'BOS';
SELECT origin, dest, carrier, average FROM task1_part2_group2_3 WHERE origin = 'BOS' AND dest = 'LGA';
SELECT origin, dest, carrier, average FROM task1_part2_group2_3 WHERE origin = 'OKC' AND dest = 'DFW';
SELECT origin, dest, carrier, average FROM task1_part2_group2_3 WHERE origin = 'MSP' AND dest = 'ATL';

$ bash question2_3.sh 

 origin | dest | carrier | average
--------+------+---------+---------

lifuzu

USE mykeyspace;
SELECT origin, dest, average FROM task1_part2_group2_2 WHERE origin IN ('SRQ', 'CMH', 'JFK', 'SEA', 'BOS');

$ bash question2_2.sh 

 origin | dest | average
--------+------+---------
    BOS |  ONT |       0
    BOS |  SWF |       0
    BOS |  GGG |       2

lifuzu

USE mykeyspace;
SELECT origin, carrier, average FROM task1_part2_group2_1 WHERE origin IN ('SRQ', 'CMH', 'JFK', 'SEA', 'BOS');

$ bash question2_1.sh 

 origin | carrier | average
--------+---------+---------
    BOS |  PA (1) |  4.7603
    BOS |  ML (1) |  5.7604
    BOS |      TZ |  7.4525

lifuzu

========= 2016-02-17 14:03:00 =========
+-------+------------------+
|carrier|         avg_delay|
+-------+------------------+
|   "HA"|3.8480866979955883|
|   "9E"| 5.108409199808337|
|   "WN"| 6.573501153936092|
|   "F9"| 6.647087408127316|
|   "NW"| 7.351961775245797|
|   "OO"| 7.906498902139751|