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How does the Brainfuck Hello World actually work?
...e same way.
For the space and capital letters, different array cells are selected
and incremented or decremented as needed.
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Left padding a String with Zeros [duplicate]
...")
the second parameter is the desired output length
"0" is the padding char
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How do you change the server header returned by nginx?
...
## vi src/http/ngx_http_header_filter_module.c (lines 48 and 49)
static char ngx_http_server_string[] = "Server: MyDomain.com" CRLF;
static char ngx_http_server_full_string[] = "Server: MyDomain.com" CRLF;
March 2011 edit: Props to Flavius below for pointing out a new option, replacing Nginx's ...
Throwing exceptions from constructors
...attached has an outdated hyperlink. To fix it wants to change exactly one character, replacing "#faq-17.2" with "#faq-17.8" in the URL. However, Stackoverflow's software requires that an edit submitted by a low-reputation user like me change at least six characters. Pretty obviously, the broken l...
C/C++ line number
...NCTION__ were treated as string literals; they could be used to initialize char arrays, and they could be concatenated with other string literals. GCC 3.4 and later treat them as variables, like __func__. In C++, __FUNCTION__ and __PRETTY_FUNCTION__ have always been variables."
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How do I escape spaces in path for scp copy in Linux?
..., considering how many spaces it can handle with the same amount of escape characters. Thanks!
– Michael
Feb 28 '18 at 20:47
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Using awk to print all columns from the nth to the last
... You can also use "-b" to specify the position (from the Nth character onwards).
– Dakatine
Sep 10 '13 at 13:56
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What is “overhead”?
...method that is being used. Examples:
Protocol overhead: Ethernet frames, IP packets and TCP segments all have headers, TCP connections require handshake packets. Thus, you cannot use the entire bandwidth the hardware is capable of for your actual data. You can reduce the overhead by using larger p...
Why can't Python's raw string literals end with a single backslash?
...string; for example, r"\"" is a
valid string literal consisting of two
characters: a backslash and a double
quote; r"\" is not a valid string
literal (even a raw string cannot end
in an odd number of backslashes).
Specifically, a raw string cannot end
in a single backslash (since the
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Regular expression to extract text between square brackets
...the following regex globally:
\[(.*?)\]
Explanation:
\[ : [ is a meta char and needs to be escaped if you want to match it literally.
(.*?) : match everything in a non-greedy way and capture it.
\] : ] is a meta char and needs to be escaped if you want to match it literally.
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