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Linux bash: Multiple variable assignment
...ork: so that bash can launch the date command. In the second example, you set up a pipeline between date and your sub-shell. I think bash these days is clever enough not to actually fork into the subshell, but I'm not sure about that. At any rate, it looks like it would :)
– O...
How to check for the type of a template parameter?
...extra flag to indicate the type, and this specialized declaration can just set the flag accordingly and directly pass on all the other arguments without touching anything. So if 10 different classes need to be handled, it is basically 10 lines for 10 different function definitions. But this will get...
Create an index on a huge MySQL production table without table locking
...1 | grep real;
(time mysql -uroot -e 'update website_development.users set bio="" where id = 41225\G'>/dev/null) 2>&1 | grep real;
done
) | cat -n &
PID=$!
sleep 0.05
echo "Index Update - START"
mysql -uroot website_development -e 'alter table users add index ddopsonfu (last_name...
How to pipe stdout while keeping it on screen ? (and not to a output file)
...I can simply say:
% ls [A-J]* | t | wcl
POSTSCRIPT: For the younger set, who might titter at its pronunciation as "titty", I might add that "tty" was once the common
abbreviation for a "teletype" terminal, which used a roll of yellow
paper and had round keys that often stuck.
...
MySQL Results as comma separated list
...
Note you may have to set max length for session per stackoverflow.com/questions/2567000/…
– sobelito
Mar 20 '15 at 18:55
...
Can a C++ enum class have methods?
...Flag2 = 0x02 , // Bit #1
Flag3 = 0x04 , // Bit #3
// aso ...
}
// Sets both lower bits
unsigned char flags = (unsigned char)(Flags::Flag1 | Flags::Flag2);
// Set Flag3
flags |= Flags::Flag3;
// Reset Flag2
flags &= ~Flags::Flag2;
Obviously one thinks of encapsulating the necessary o...
How to stop mongo DB in one command
...
Great answer. When setting up multiple instances on development machine (trying the replication set before deployment) it helps to have a .bat start C:\mongodb\bin\mongod.exe --config C:\net2\primary1-pc\mongod.cfg start C:\mongodb\bin\mongod...
Can the Unix list command 'ls' output numerical chmod permissions?
... to be a hidden character between the 0 and o. Once deleted the command is set up nicely. Cheers!
– Donna
Mar 9 '14 at 17:31
...
Capture screenshot of active window?
... }
public Point CursorPosition
{
get;
protected set;
}
}
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How to specify the default error page in web.xml?
...ed exceptions or does not have all methods implemented, then you'd like to set it for HTTP errors 401, 403, 500 and 503 respectively.
<error-page>
<!-- Missing login -->
<error-code>401</error-code>
<location>/general-error.html</location>
</error-...