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How to pipe input to a Bash while loop and preserve variables after loop ends
...hopt -s lastpipe # Comment this out to see the alternative behaviour
sum=0
echo "$FILECONTENT" |
while read number name; do ((sum+=$number)); done
echo $sum
Doing this at the command line usually runs foul of 'job control is not active' (that is, at the command line, job control is active). Test...
How does java do modulus calculations with negative numbers?
...
104
Both definitions of modulus of negative numbers are in use - some languages use one definition ...
Convert Pandas column containing NaNs to dtype `int`
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180
The lack of NaN rep in integer columns is a pandas "gotcha".
The usual workaround is to simply ...
Rails: How to list database tables/objects using the Rails console?
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308
You are probably seeking:
ActiveRecord::Base.connection.tables
and
ActiveRecord::Base.conne...
Do try/catch blocks hurt performance when exceptions are not thrown?
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+100
Check it.
static public void Main(string[] args)
{
Stopwatch w = new Stopwatch();
double d = 0;
w.Start();
for (in...
How to extract public key using OpenSSL?
...file.
– Juan Antonio
Nov 9 '16 at 9:03
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SQL Server equivalent to MySQL enum data type?
Does SQL Server 2008 have a a data-type like MySQL's enum ?
5 Answers
5
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How to list out all the subviews in a uiviewcontroller in iOS?
...iews];
// Return if there are no subviews
if ([subviews count] == 0) return; // COUNT CHECK LINE
for (UIView *subview in subviews) {
// Do what you want to do with the subview
NSLog(@"%@", subview);
// List the subviews of subview
[self listSubviewsOfV...
How to view the list of compile errors in IntelliJ?
...A 13.
– GarfieldKlon
Mar 26 '14 at 10:56
3
Apparently this "problems" toolbar is only available i...
Should JAVA_HOME point to JDK or JRE?
...David W.
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