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Have Grunt generate index.html for different setups
... options : {
/* Shared Options Hash */
//globalOption : 'foo'
},
dev: {
NODE_ENV : 'DEVELOPMENT'
},
prod : {
NODE_ENV : 'PRODUCTION'
}
},
Preprocess:
preprocess : {
dev : {
src : './src/tmpl/index.html',
dest : '....
Differences between fork and exec
...cture
int cpid = fork( );
if (cpid = = 0)
{
//child code
exec(foo);
exit(0);
}
//parent code
wait(cpid);
// end
(after exec call unix kernel clears the child process text,data,stack and fills with foo process related text/data)
thus child process is with different code (foo'...
Can a shell script set environment variables of the calling shell? [duplicate]
...ve about ptrace, and the same may go for other distros as well).
$ cat setfoo
#! /bin/bash
gdb /proc/${PPID}/exe ${PPID} <<END >/dev/null
call setenv("foo", "bar", 0)
END
$ echo $foo
$ ./setfoo
$ echo $foo
bar
s...
Truncate a string straight JavaScript
....substring(0, Math.min(length,pathname.length));
document.getElementById("foo").innerHTML =
"<a href='" + pathname +"'>" + trimmedPathname + "</a>"
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...
What are namespaces?
... as a namespace for the files within them. As a concrete example, the file foo.txt can exist in both directory /home/greg and in /home/other, but two copies of foo.txt cannot co-exist in the same directory. In addition, to access the foo.txt file outside of the /home/greg directory, we must prepend ...
nodejs get file name from absolute path?
...
Use the basename method of the path module:
path.basename('/foo/bar/baz/asdf/quux.html')
// returns
'quux.html'
Here is the documentation the above example is taken from.
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im...
How to use Namespaces in Swift?
...th something
like this:
import FrameworkA
import FrameworkB
FrameworkA.foo()
All Swift declarations are considered to be part of
some module, so even when you say "NSLog" (yes, it still exists)
you're getting what Swift thinks of as "Foundation.NSLog".
Also Chris Lattner tweeted abou...
Getting output of system() calls in Ruby
... + $/.size)) # strip trailing eol
rescue
end
end
Example:
p system('foo')
p syscall('foo')
p system('which', 'foo')
p syscall('which', 'foo')
p system('which', 'which')
p syscall('which', 'which')
Yields the following:
nil
nil
false
false
/usr/bin/which <— stdout from system('...
How to remove duplicate white spaces in string using Java?
...$1.
Java code:
str = str.replaceAll("(\\s)\\1","$1");
If the input is "foo\t\tbar " you'll get "foo\tbar " as outputBut if the input is "foo\t bar" it will remain unchanged because it does not have any consecutive whitespace characters.
If you treat all the whitespace characters(space, vertica...
psql - save results of command to a file
... privileges and will write to a file on the server.
Example: COPY (SELECT foo, bar FROM baz) TO '/tmp/query.csv' (format csv, delimiter ';')
Creates a CSV file with ';' as the field separator.
As always, see the documentation for details
...