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How can I remove the first line of a text file using bash/sed script?
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I get error: unterminated transform source string
– Daniel Kobe
Dec 1 '15 at 4:16
10
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Preferred method to store PHP arrays (json_encode vs serialize)
...2.180496931076 seconds
JSON decoded in 9.8368630409241 seconds
serialized "String" size : 13993
Native PHP :
PHP serialized in 2.9125759601593 seconds
PHP unserialized in 6.4348418712616 seconds
serialized "String" size : 20769
Igbinary :
WIN igbinary serialized in 1.6099879741669 secon...
Subset of rows containing NA (missing) values in a chosen column of a data frame
...olumn (in the example it would be column Var2) has there an 'NA' character string (I will replace it with your second statement), then I would like to choose the entire row to be part of the new data frame.
– John
Nov 2 '11 at 14:29
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What are the main purposes of using std::forward and which problems it solves?
...ways passed as a normal reference.
#include <iostream>
#include <string>
#include <utility>
void overloaded_function(std::string& param) {
std::cout << "std::string& version" << std::endl;
}
void overloaded_function(std::string&& param) {
std::cout...
Using i and j as variables in Matlab
...note the imaginary unit (1j works too). The only exception is when passing strings to the always-slightly-incompatible Symbolic engine. Strange that help 1i and doc 1i don't work though.
– horchler
Jun 2 '13 at 23:45
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Delete all the queues from RabbitMQ?
...rn: .*
Apply to: Queues
Definition: expires with value 1 (change type from String to Number)
Save
Checkout Queues tab again
All Queues must be deleted
And don't forget remove policy!!!!!!.
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How to fix Python indentation
...s of white-space containing a
<Tab> with new strings of white-space using the new
tabstop value given. If you do not specify a new
tabstop size or it is zero, Vim uses the current value
of 'tabstop...
How can I check if an ip is in a network in Python?
...lt;<n-1) - 1
def dottedQuadToNum(ip):
"convert decimal dotted quad string to long integer"
return struct.unpack('L',socket.inet_aton(ip))[0]
def networkMask(ip,bits):
"Convert a network address to a long integer"
return dottedQuadToNum(ip) & makeMask(bits)
def addressInNet...
How to send a header using a HTTP request through a curl call?
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man curl:
-H/--header <header>
(HTTP) Extra header to use when getting a web page. You may specify
any number of extra headers. Note that if you should add a custom
header that has the same name as one of the internal ones curl would
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Long vs Integer, long vs int, what to use and when?
... you to do some complex operations with integers (such as Integer.parseInt(String) )
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