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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...
The performance impact of using instanceof in Java
... operations, including instanceof, exception handling, reflection, etc.
As Donald Knuth wrote, "We should forget about small efficiencies, say about 97% of the time: premature optimization is the root of all evil." The performance of instanceof probably won't be an issue, so don't waste your time c...
What function is to replace a substring from a string in C?
...ll occurrences of a substring and replace them with an alternate string. I do not see any simple function that achieves this in <string.h> .
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How to delete a workspace in Perforce (using p4v)?
...e of the workspaces. I just want to get rid of the workspaces so that they do not appear on the drop-down in the workspaces view ( do not want to do anything with actual depot files).
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Finding last occurrence of substring in string, replacing that
...". - ". I've tried using rfind, but I can't seem to utilize it properly to do this.
7 Answers
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Check if a value exists in pandas dataframe index
I am sure there is an obvious way to do this but cant think of anything slick right now.
6 Answers
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GitHub: How to make a fork of public repository private?
How can I fork a public repository, but make my fork private? I do have the subscription to support private repositories.
6...
Converting between java.time.LocalDateTime and java.util.Date
...e-zone is not part of the actual state of java.util.Date.
An Instant also does not contain any information about the time-zone. Thus, to convert from an Instant to a local date-time it is necessary to specify a time-zone. This might be the default zone - ZoneId.systemDefault() - or it might be a ti...
Download a file with Android, and showing the progress in a ProgressDialog
... application that gets updated. For this I need a simple function that can download a file and show the current progress in a ProgressDialog . I know how to do the ProgressDialog , but I'm not sure how to display the current progress and how to download the file in the first place.
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Avoiding “resource is out of sync with the filesystem”
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You can enable this in Window - Preferences - General - Workspace - Refresh Automatically (called Refresh using native hooks or polling in newer builds)
The only reason I can think why this isn't enabled by default is performance related.
For exam...