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How to tell if a string is not defined in a Bash shell script
...o use a default value, ${foo:=default} to assign the default value, ${foo:?error message} to display an error message if foo is unset, etc.
– Jouni K. Seppänen
Oct 23 '08 at 4:54
...
A potentially dangerous Request.Path value was detected from the client (*)
I am receiving the rather self explanatory error:
8 Answers
8
...
Date query with ISODate in mongodb doesn't seem to work
...ow:
db.foo.find({dt: {"$date": "2012-01-01T15:00:00.000Z"}})
you'll get error:
error: { "$err" : "invalid operator: $date", "code" : 10068 }
Try this:
db.mycollection.find({
"dt" : {"$gte": new Date("2013-10-01T00:00:00.000Z")}
})
or (following comments by @user3805045):
db.mycollectio...
PDOException “could not find driver”
...in your code reveals you are trying to connect with the mysql driver. Your error message indicates that this driver is unavailable.
Check that you have the mysql extension installed on your server.
In Ubuntu/Debian you check for the package with:
dpkg --get-selections | grep php | grep mysql
In...
Recursive search and replace in text files on Mac and Linux
...that. I did however try using {} to separate the slash and I still got an error...
– Timothy T.
Sep 19 '13 at 2:39
16
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Relative imports in Python 3
...)[0] returns empty string. This is why there's empty string literal in the error description:
SystemError: Parent module '' not loaded, cannot perform relative import
The relevant part of the CPython's PyImport_ImportModuleLevelObject function:
if (PyDict_GetItem(interp->modules, package) == ...
Check whether user has a Chrome extension installed
...{version: '1.0'} and not {version: 1.0} or else you'll get 'Uncaught SyntaxError: Unexpected number' in extension Inspect view console.
– ET-CS
Jan 26 '15 at 5:01
1
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How to install therubyracer gem on 10.10 Yosemite?
...t helps without any weirdness. Even though you may just be getting a libv8 error, do this! thanks.
– pjammer
Nov 2 '14 at 18:55
2
...
Do I need dependency injection in NodeJS, or how to deal with …?
...ontrived example.
MyClass.js:
var fs = require('fs');
MyClass.prototype.errorFileExists = function(dir) {
var dirsOrFiles = fs.readdirSync(dir);
for (var d in dirsOrFiles) {
if (d === 'error.txt') return true;
}
return false;
};
MyClass.test.js:
describe('MyClass', func...
Export database schema into SQL file
...############
BEGIN CATCH
BEGIN
-- INIZIO Procedura in errore =========================================================================================================================================================
PRINT '*********************************************...