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What's the difference between Perl's backticks, system, and exec?
...It never returns true, because if the command is found it never returns at all.
There is also no point in returning STDOUT, STDERR or exit status of the command.
You can find documentation about it in perlfunc,
because it is a function.
system
executes a command and your Perl script is con...
Linq to Sql: Multiple left outer joins
...
This may be cleaner (you dont need all the into statements):
var query =
from order in dc.Orders
from vendor
in dc.Vendors
.Where(v => v.Id == order.VendorId)
.DefaultIfEmpty()
from status
in dc.Status
.Where(...
How to add a custom loglevel to Python's logging facility
...for my application, as I don't think that debug() is sufficient. Additionally log(5, msg) isn't what I want. How can I add a custom loglevel to a Python logger?
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UITextField border color
I have really great wish to set my own color to UITextField border. But so far I could find out how to change the border line style only.
...
How do I read configuration settings from Symfony2 config.yml?
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parameters:
contact_email: somebody@gmail.com
You should find the call you are making within your controller now works.
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Padding characters in printf
...amic technique:
printf -v pad '%*s' "$padlimit"
You can do the printing all on one line if you prefer:
printf '%s%*.*s%s\n' "$string1" 0 $((padlength - ${#string1} - ${#string2} )) "$pad" "$string2"
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How to implement the --verbose or -v option into a script?
...
def verboseprint(*args):
# Print each argument separately so caller doesn't need to
# stuff everything to be printed into a single string
for arg in args:
print arg,
print
else:
verboseprint = lambda *a: None # do-nothing function
(Yes, y...
Difference between rake db:migrate db:reset and db:schema:load
...drop, db:setup
db:migrate:reset does db:drop, db:create, db:migrate
Typically, you would use db:migrate after having made changes to the schema via new migration files (this makes sense only if there is already data in the database). db:schema:load is used when you setup a new instance of your app...
Verifying that a string contains only letters in C#
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This assumes a latin alphabet, where Char.IsLetter allows for non-latin alphabets.
– Paul van Brenk
Jul 28 '09 at 7:31
5
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解决IIS发布时global_asax的dll 的CS0433冲突问题 - 更多技术 - 清泛网 - ...
...ion.Compilation ErrorDescription:An error occurred during the compilation of a re...Server Error in '/' Application.
Compilation ErrorDescription: An error occurred during the compilation of a resource required to service this request. Please review the following specific error details and modify...