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How to make the 'cut' command treat same sequental delimiters as one?
...elimiters
offsets from end of line (using negative numbers) in addition to start of line
automatic side-by-side pasting of columns (no need to invoke paste separately)
support for field reordering
a config file where users can change their personal preferences
great emphasis on user friendliness &am...
How do I copy directories recursively with gulp?
...base default is "folder" as given in this answer. In other words, the base starts where the glob pattern begins. This helped me to understand where my files would end up and is also why you don't need the **/* in the gulp.dest parameter. Gulp takes everything in the glob and puts it in the dest fold...
What ports does RabbitMQ use?
...-env.conf
Ask the computer to tell you:
sudo nmap -p 1-65535 localhost
Starting Nmap 5.51 ( http://nmap.org ) at 2014-09-19 13:50 EDT
Nmap scan report for localhost (127.0.0.1)
Host is up (0.00041s latency).
PORT STATE SERVICE
443/tcp open https
5672/tcp open am...
Getting image dimensions without reading the entire file
... (ArgumentException e)
{
if (e.Message.StartsWith(errorMessage))
{
throw new ArgumentException(errorMessage, "path", e);
}
else
{
throw ...
Split list into smaller lists (split in half)
...rn list[::2], list[1::2]
list[::2] gets every second element in the list starting from the 0th element.
list[1::2] gets every second element in the list starting from the 1st element.
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How to grab substring before a specified character jQuery or JavaScript
...3745515/… my answer is as accurate as the accepted answer, and works for starting indices other than 0.
– Mikey G
Aug 5 '15 at 20:53
...
Delete first character of a string in Javascript
...2 = s1.substring(1);
alert(s2); // shows "oobar"
To remove all 0's at the start of the string:
var s = "0000test";
while(s.charAt(0) === '0')
{
s = s.substring(1);
}
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What's the difference between Perl's backticks, system, and exec?
...erlfunc, because it is a function.
E.g.:
#!/usr/bin/perl
print "Need to start exec command";
my $data2 = exec('ls');
print "Now END exec command";
print "Hello $data2\n\n";
In above code, there are three print statements, but due to exec leaving the script, only the first print statement is exe...
How to create ls in windows command prompt?
...t to your Path variable. Mine was located in C:\Program Files\Git\usr\bin.
Start a command prompt and enjoy ls in all its glory.
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C++ equivalent of java's instanceof
...Duration>
Duration instanceOfMeasurement(unsigned _loopCycles) {
auto start = std::chrono::high_resolution_clock::now();
volatile bool isInstanceOf = false;
for (unsigned i = 0; i < _loopCycles; ++i) {
Base *ptr = new Derived;
isInstanceOf = ptr->template instanceOf<Derived...