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How to mkdir only if a directory does not already exist?
...ctories don't exist, and want to create the directory if it doesn't exist, then you can test for the existence of the directory first:
[ -d foo ] || mkdir foo
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Set a cookie to never expire
...ears away now) and see as everyone scramble to implement the Y2018 upgrade then again 20 years later in 2038. Hopefully we all make the jump to 64-bit everything by then this won't be a problem for another 292 billion years on Sunday, 4 December 292,277,026,596. Unless we reach a singularity befor...
Do you use source control for your database items? [closed]
...concatenation, or as complex as automated deployments. First get src ctrl, then think about a tool.
– ulty4life
Oct 27 '10 at 22:42
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moving committed (but not pushed) changes to a new branch after pull
...o origin/master. (You may have to resolve some conflicts along the way.) Then you can create your new branch based on the result:
git branch new-work
... and then reset your master back to origin/master:
# Use with care - make sure "git status" is clean and you're still on master:
git reset --...
C++11 range based loop: get item by value or reference to const
...you don't want to change the items as well as want to avoid making copies, then auto const & is the correct choice:
for (auto const &x : vec)
Whoever suggests you to use auto & is wrong. Ignore them.
Here is recap:
Choose auto x when you want to work with copies.
Choose auto &x...
Take a char input from the Scanner
... @Reimeus what exactly is the value in copy pasting code and then running it?
– bharal
Jun 7 '18 at 17:37
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Disabling Chrome Autofill
...style="display: none" type="password" name="fakepasswordremembered" />
Then put your real fields underneath.
Remember to add the comment or other people on your team will wonder what you are doing!
Update March 2016
Just tested with latest Chrome - all good. This is a fairly old answer now but I...
How to find out the MySQL root password
...top
sudo mysqld_safe --skip-grant-tables --skip-syslog --skip-networking
Then run mysql in a new terminal:
mysql -u root
And run the following queries to change the password:
UPDATE mysql.user SET authentication_string=PASSWORD('password') WHERE User='root';
FLUSH PRIVILEGES;
In MySQL 5.7, t...
Single script to run in both Windows batch and Linux Bash?
... the label character by another character which can’t be used in a GOTO, then commenting your cmd script should not affect your cmd code.
The hack is to put lines of code after the character sequence “:;”. If you’re writing mostly one-liner scripts or, as may be the case, can write one line...
DateTimePicker: pick both date and time
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Set the Format to Custom and then specify the format:
dateTimePicker1.Format = DateTimePickerFormat.Custom;
dateTimePicker1.CustomFormat = "MM/dd/yyyy hh:mm:ss";
or however you want to lay it out. You could then type in directly the date/time. If ...