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Why 0 is true but false is 1 in the shell?
...it code of 0 (the result of /bin/true). Otherwise they evaluate as false.
Strings are evaluated differently than exit codes:
if [ 0 ] ; then echo not null ; fi
if [ $(echo 0) ] ; then echo not null ; fi
if [ -z "" ] ; then echo null ; fi
The (( )) arithmetic operator interprets 1 and 0 as true ...
Relative URLs in WordPress
... any installed. Just using Elementor and theme Futurio with plugin Futurio Extra. I tried disabling them without any change though, so not sure :/
– hug
Jul 2 at 23:27
...
What is the proper declaration of main?
...lly named argc and argv, respectively. argv is a pointer to an array of C strings representing the arguments to the program. argc is the number of arguments in the argv array.
Usually, argv[0] contains the name of the program, but this is not always the case. argv[argc] is guaranteed to be a nu...
How to use android emulator for testing bluetooth application?
...rt the VM and select 'Live CD VESA' at boot.
Now you need to find out the IP of this VM. Go to terminal in VM (use Alt+F1
& Alt+F7 to toggle) and use the netcfg command to find this.
Now you need open a command prompt and go to your android install
folder (on host). This is usually C:\Program ...
erb, haml or slim: which one do you suggest? And why? [closed]
...as erb only returns the last line in the block. so you have to append to a string and then return that.
HAML
Pros
more concise. no closing tags, fits in smaller screens
visually cleaner structure
has built in helpers (haml_concat, haml_capture) to utilize haml in helper methods
class chaining...
Remove characters after specific character in string, then remove substring?
...ing this when this seems kind of simple and there are tons of questions on strings/characters/regex, but I couldn't find quite what I needed (except in another language: Remove All Text After Certain Point ).
...
What's the best way to check if a file exists in C?
...e file exists. Stat() can have a large overheard if you don't need all the extra info.
– Martin Beckett
Oct 23 '08 at 15:16
4
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How can I test https connections with Django as easily as I can non-https connections using 'runserv
...ert.key which can then be reused for future sessions.
There is a bunch of extra stuff included in django-extensions that you may find of use so it is worth having a quick flick through the docs.
share
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How to prevent ajax requests to follow redirects using jQuery
...requirement from your question with the requirement to prevent changing of IP address of the web server or the changing of the IP route during the communication. All the things can be interesting in some scenarios, but there are parts of another level of the communication stack and can't be managed ...
gdb: how to print the current line or find the current line number?
... processor will next attempt to execute. The instruction pointer is called ip in 16-bit mode, eip in 32-bit mode,and rip in 64-bit mode.
more detail here
all registers available on gdb execution can be shown with:
(gdb) info registers
with it you can find which mode your program is running (lo...