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How to export collection to CSV in MongoDB?
...oDB issue tracker https://jira.mongodb.org/browse/SERVER-4224 you MUST provide the fields when exporting to a csv. The docs are not clear on it. That is the reason for the error.
Try this:
mongoexport --host localhost --db dbname --collection name --csv --out text.csv --fields firstName,middleName...
Getting error: Peer authentication failed for user “postgres”, when trying to get pgsql working with
...stgres@www0:~$ createuser --interactive -P someuser
Enter password for new role:
Enter it again:
Shall the new role be a superuser? (y/n) n
Shall the new role be allowed to create databases? (y/n) y
Shall the new role be allowed to create more new roles? (y/n) n
postgres@www...
How to re-sync the Mysql DB if Master and slave have different database incase of Mysql replication?
...answered Jul 12 '10 at 15:08
David EspartDavid Espart
10.4k66 gold badges3333 silver badges4848 bronze badges
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Chrome desktop notification example [closed]
...nted')
Notification.requestPermission();
else {
var notification = new Notification('Notification title', {
icon: 'http://cdn.sstatic.net/stackexchange/img/logos/so/so-icon.png',
body: 'Hey there! You\'ve been notified!',
});
notification.onclick = function() {
window.open(...
Automatic prune with Git fetch or pull
... to either prune always or when fetching from a particular remote, add two new configuration variables "fetch.prune" and "remote.<name>.prune":
"fetch.prune" allows to enable prune for all fetch operations.
"remote.<name>.prune" allows to change the behaviour per remote.
...
Shell command to sum integers, one per line?
...
Using floats just introduces a new problem: echo 999999999999999999 | awk '{s+=$1} END {printf "%.0f\n", s}' produces 1000000000000000000
– Patrick
Oct 24 '17 at 18:53
...
Case insensitive 'in'
...bda name: name.upper(), USERNAMES):
...
In this case we are forming a new list with all entries in USERNAMES converted to upper case and then comparing against this new list.
Update
As @viraptor says, it is even better to use a generator instead of map. See @Nathon's answer.
...
Express.js - app.listen vs server.listen
...unction () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f17696801%2fexpress-js-app-listen-vs-server-listen%23new-answer', 'question_page');
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...
Canvas width and height in HTML5
Is it possible to fix the width and height of an HTML5 canvas element?
4 Answers
4
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django urls without a trailing slash do not redirect
... /) - sloppy, bad for crawlers, harder to maintain, harder to migrate to a new system (since it's so easy to overlook)
– Jiaaro
May 14 '15 at 21:01
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