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How to calculate time elapsed in bash script?
... before starting the timed event, simply read SECONDS after the event, and do the time arithmetic before displaying.
SECONDS=0
# do some work
duration=$SECONDS
echo "$(($duration / 60)) minutes and $(($duration % 60)) seconds elapsed."
As this solution doesn't depend on date +%s (which is a GNU e...
Meaning of @classmethod and @staticmethod for beginner? [duplicate]
...wly created instance.
Class Method
We have some tasks that can be nicely done using classmethods.
Let's assume that we want to create a lot of Date class instances having date information coming from an outer source encoded as a string with format 'dd-mm-yyyy'. Suppose we have to do this in diffe...
Storing Objects in HTML5 localStorage
...
Looking at the Apple, Mozilla and Mozilla again documentation, the functionality seems to be limited to handle only string key/value pairs.
A workaround can be to stringify your object before storing it, and later parse it when you retrieve it:
var testObject = { 'one': ...
Batch file to copy directories recursively
...h will recursively copy files and subdirectories.
There are examples, 2/3 down the page. Of particular use is:
To copy all the files and subdirectories (including any empty subdirectories) from drive A to drive B, type:
xcopy a: b: /s /e
...
Numpy array assignment with copy
...
All three versions do different things:
B = A
This binds a new name B to the existing object already named A. Afterwards they refer to the same object, so if you modify one in place, you'll see the change through the other one too.
B[:] = A ...
How to plot multiple functions on the same figure, in Matplotlib?
...lot the following 3 functions (i.e. sin , cos and the addition), on the domain t , in the same figure?
3 Answers
...
psql invalid command \N while restore sql
... I came here because of the same error. What I figured out was to do: (pg_restore ... | psql ...) 2>&1 | less
– THK
May 19 '17 at 21:55
...
Difference between break and continue statement
...ement. You
can also use an unlabeled break to terminate a for, while, or do-while
loop [...]
An unlabeled break statement terminates the innermost switch, for,
while, or do-while statement, but a labeled break terminates an outer
statement.
continue
The continue statement skips th...
How to create a directory in Java?
How do I create Directory/folder?
17 Answers
17
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How to display multiple notifications in android
...
Simple notification_id needs to be changable.
Just create random number for notification_id.
Random random = new Random();
int m = random.nextInt(9999 - 1000) + 1000;
or you can use this method for creating random number as told by tieorange (this will never get repeated):
...