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Return value in a Bash function
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$(...) captures the text sent to stdout by the command contained within. return does not output to stdout. $? contains the result code of the last command.
fun1 (){
return 34
}
fun2 (){
fun1
local res=$?
echo $res
}
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Bootstrap css hides portion of container below navbar navbar-fixed-top
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This is handled by adding some padding to the top of the <body>.
As per Bootstrap's documentation on .navbar-fixed-top, try out your own values or use our snippet below. Tip: By default, the navbar is 50px high.
body {
padding-...
How to change port number for apache in WAMP
...rver and installed it on my system but after installing it when I check it by going to localhost url like this http://localhost/ in the browser it is not working. I am getting a 404 error and blank page .
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what is the difference between ?:, ?! and ?= in regex?
...d
Let's apply q(?=u)i to quit. The lookahead is positive and is followed by another token. Again, q matches q and u matches u. Again, the match from the lookahead must be discarded, so the engine steps back from i in the string to u. The lookahead was successful, so the engine continues with i. Bu...
What is a provisioning profile used for when developing iPhone applications?
...ces specified within the provisioning profile can be used for testing only by those individuals whose iPhone Development Certificates are included in the profile. A single device can contain multiple provisioning profiles.
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Why all the Active Record hate? [closed]
... ways, so before anyone says "ActiveRecord Sucks" it needs to be qualified by saying "which ActiveRecord, there's heaps?"
I'm only familiar with Rails' ActiveRecord, I'll try address all the complaints which have been raised in context of using it.
@BlaM
The problem that I see with Active ...
Best way to work with transactions in MS SQL Server Management Studio
...your code in a transaction, and then execute each batch of T-SQL code line by line.
For example,
Begin Transaction
-Do some T-SQL queries here.
Rollback transaction -- OR commit transaction
If you want to incorporate error handling you can do so by using a TRY...CATCH BLOCK. Should an...
理解Python的 with 语句 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...__enter__() function on the resulting object is called. The value returned by this function is assigned to the variable following as. After every statement in the block is evaluated, the __exit__() function is called.
紧跟with后面的语句被求值后，返回对象的__enter__()方法被调用...
Is there a way to make HTML5 video fullscreen?
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This answer is outdated, see the answer by Sindre Sorhus (and then vote it up so that it overtakes these out of date answers)
– matt burns
Sep 27 '12 at 17:04
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PowerShell: Store Entire Text File Contents in Variable
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This is should be the accepted answer. By the way, I'm pretty sure Get-Content worked even in earlier versions.
– MatteoSp
May 8 '15 at 12:17
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