大约有 40,000 项符合查询结果（耗时：0.0436秒） [XML]
What's the easiest way to install a missing Perl module?
...s dynamically loaded modules with CPAN::Shell->recompile.
-v
Print the script version and CPAN.pm version.
share
|
improve this answer
|
follow
|
...
Use of .apply() with 'new' operator. Is this possible?
In JavaScript, I want to create an object instance (via the new operator), but pass an arbitrary number of arguments to the constructor. Is this possible?
...
How to move all files including hidden files into parent directory via *
...ning" may not always be a good idea. Right now I'm having a problem with a script in which I need to stop execution if any step fails - since this solution always causes an error, it kills my script. I need a way to determine if the mv command failed or not...
– MarioVilas
...
MySQL: ignore errors when importing?
...rors to the console.
For example:
mysql -u userName -p -f -D dbName < script.sql
share
|
improve this answer
|
follow
|
...
Uncatchable ChuckNorrisException
...-Xverify:none)
UPDATE 3:
For those following from home, here is the full script:
Create the following classes:
public class ChuckNorrisException
extends RuntimeException // <- Comment out this line on second compilation
{
public ChuckNorrisException() { }
}
public class TestVillain {...
How to get disk capacity and free space of remote computer
...
I created a PowerShell advanced function (script cmdlet) a while back that allows you to query multiple computers.
The code for the function is a little over 100 lines long, so you can find it here: PowerShell version of the df command
Check out the Usage section...
How to save a plot as image on the disk?
..., and an answer for each.
1. An image will be generated in future in my script, how do I save it to disk?
To save a plot, you need to do the following:
Open a device, using png(), bmp(), pdf() or similar
Plot your model
Close the device using dev.off()
Some example code for saving the plot t...
Why is $$ returning the same id as the parent process?
...matter if it's in a subshell or not.
$$ is an alias in Bash to the current script PID. See differences between $$ and $BASHPID here, and right above that the additional variable $BASH_SUBSHELL which contains the nesting level.
...
How to drop columns using Rails migration
...
For older versions of Rails
ruby script/generate migration RemoveFieldNameFromTableName field_name:datatype
For Rails 3 and up
rails generate migration RemoveFieldNameFromTableName field_name:datatype
...
In Python, what happens when you import inside of a function? [duplicate]
... Importing a module for the first time is expensive. Try running an empty script vs one containing just import string,itertools,fractions,heapq,re,array,bisect,collections,math,os. The first takes an average of 180 ms, and the second 230 ms. So it's not microseconds for starters. It's tens of milli...