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How do I avoid the specification of the username and password at every git push?
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1. Generate an SSH key
Linux/Mac
Open terminal to create ssh keys:
cd ~ #Your home directory
ssh-keygen -t rsa #Press enter for all values
For Windows
(Only works if the commit program is capable of using certificates/private & public ssh keys)
Use Putty Gen to ge...
Why does Oracle 9i treat an empty string as NULL?
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docs.oracle.com/cd/B19306_01/server.102/b14200/…
– Walter Mitty
Oct 16 '18 at 0:29
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Installing CocoaPods: no response
...n:$PATH
gem install cocoapods
Set the path of the project with the command cd path/to/project
pod init
Open podfile
Add appropriate pod
pod install
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What is the difference between declarative and procedural programming paradigms?
... 10 ec2 instances like this:
-ec2:
count: 10
image: ami-058c6e5b73b074cd2
instance_type: t2.micro
If you were to run that file twice, you would end up with 20 t2.micro ec2 instances. If you wrote the equivalent in a declarative language like terraform and ran it twice you would only have 10...
Git commit with no commit message
... more, read "A Note About Git Commit Messages".
If you open Terminal.app, cd to your project directory, and git commit -am '', you will see that it fails because an empty commit message is not allowed. Newer versions of git have the
--allow-empty-message commandline argument, including the version ...
Changing MongoDB data store directory
... start
# test if mongodb user can access new location:
sudo -u mongodb -s cd /new/disk/mongodb/
# resolve other permissions issues if necessary
sudo usermod -a -G <newdisk_grp> mongodb
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Deleting all pending tasks in celery / rabbitmq
...eryev.c66a9bed-84bd-40b0-8fe7-4e4d0c002866 0 1
celeryev.b490f71a-be1a-4cd8-ae17-06a713cc2a99 0 1
celeryev.9d023165-ab4a-42cb-86f8-90294b80bd1e 0 1
The first column is the queue name, the second is the number of messages waiting in the queue, and the third is the number of listeners for...
How do I increase the scrollback buffer in a running screen session?
...What you need to know is if the file is not created ! You create it !
> cd ~ && vim .screenrc
And you add defscrollback 1000000 to it!
Or in one command
> echo "defscrollback 1000000" >> .screenrc
(if not created already)
Taking effect
When you add the default to .screenrc! The...
How to clone git repository with specific revision/changeset?
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$ git clone $URL
$ cd $PROJECT_NAME
$ git reset --hard $SHA1
To again go back to the most recent commit
$ git pull
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ERROR 1396 (HY000): Operation CREATE USER failed for 'jack'@'localhost'
...te jack)
CREATE USER 'jack'@'localhost' IDENTIFIED BY PASSWORD '*Fi47ytFF3CD5B14E7EjkjkkC1D3F8086A5C0-krn';
(Get out of this situation by running DROP USER)
DROP USER 'jack'@'localhost';
(I suppose FLUSH PRIVILEGES can't hurt, but definitely drop the user first.)
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