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Meaning of $? (dollar question mark) in shell scripts
...executed command.
For example the command true always returns a status of 0 and false always returns a status of 1:
true
echo $? # echoes 0
false
echo $? # echoes 1
From the manual: (acessible by calling man bash in your shell)
$? Expands to the exit status of the most recen...
Change Default Scrolling Behavior of UITableView Section Header
...dScroll:(UIScrollView *)scrollView {
CGFloat sectionHeaderHeight = 40;
if (scrollView.contentOffset.y<=sectionHeaderHeight&&scrollView.contentOffset.y>=0) {
scrollView.contentInset = UIEdgeInsetsMake(-scrollView.contentOffset.y, 0, 0, 0);
} else if (scrollView.conte...
Get PostGIS version
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edited Mar 28 '13 at 20:19
Brad Koch
15.2k1717 gold badges9494 silver badges124124 bronze badges
ans...
XML schema or DTD for logback.xml?
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edited Jul 4 '17 at 10:25
answered Dec 24 '12 at 20:37
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Addressing localhost from a VirtualBox virtual machine [closed]
...have a local test/development server (HTTP, of course), listening to port 8000.
22 Answers
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Understanding scala enumerations
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150
the Enumeration trait has a type member Value representing the individual elements of the enumer...
Android Studio 0.4 Duplicate files copied in APK META-INF/LICENSE.txt
After I have updated my Studio from 0.3.7 to 0.4.0, I can't compile my project. I found a solution on stackoverflow: Duplicate files copied (Android Studio 0.4.0)
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How to find out if an installed Eclipse is 32 or 64 bit version?
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210
Hit Ctrl+Alt+Del to open the Windows Task manager and switch to the processes tab.
32-bit progr...
How to inspect the return value of a function in GDB?
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return 42;
}
int main( int argc, char *v[] ) {
fun();
return 0;
}
You can debug it as such --
(gdb) r
Starting program: /usr/home/hark/a.out
Breakpoint 1, fun () at test.c:2
2 return 42;
(gdb) finish
Run till exit from #0 fun () at test.c:2
main () at test.c:7
7 ...
How to print formatted BigDecimal values?
...money, and I need to print its value in the browser in a format like $123.00 , $15.50 , $0.33 .
6 Answers
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