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Search and replace in bash using regular expressions
...ing sed or other external tools is expensive due to process initialization time. I especially searched for all-bash solution, because I found using bash substitutions to be more than 3x faster than calling sed for each item in my loop.
– rr-
Oct 11 '14 at 13:36...
Retrieve the commit log for a specific line in a file?
...accepting. Currently there is no way to "navigate through patches" back in time without some elaborate scripting. I'm hoping that gitk will get this functionality in it's patch view in the future.
– Adam Dymitruk
Dec 8 '11 at 19:50
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Find and Replace Inside a Text File from a Bash Command
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@awattar Just do them one at a time in a for loop.
– slim
Jul 30 at 9:05
I...
How do I watch a file for changes?
...e being written by another process which I want to watch for changes. Each time a change occurs I'd like to read the new data in to do some processing on it.
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When should one use RxJava Observable and when simple Callback on Android?
...ield, which loads data using Retrofit.
We don't want to do a webcall every time an EditText has a TextChangedEvent. When typing fast, only the last element should trigger the call.
On RxJava we can use the debounce operator:
inputObservable.debounce(1, TimeUnit.SECONDS).subscribe(new Action1<Str...
How to trick an application into thinking its stdout is a terminal, not a pipe
...@")" /dev/null; } Otherwise, a file named typescript will be created each time a command is run, in many cases.
– w0rp
Mar 3 '17 at 16:27
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How do I split a string on a delimiter in Bash?
...ed by ;, pushing it into an array. Stuff for processing whole of $IN, each time one line of input separated by ;:
while IFS=';' read -ra ADDR; do
for i in "${ADDR[@]}"; do
# process "$i"
done
done <<< "$IN"
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Get list of passed arguments in Windows batch script (.bat)
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I found that next time when you need to look up these information. Instead of opening a browser and google it, you could just type call /? in your cmd and you'll get it:
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%* in a batch script refers to all the arguments (e.g. %1 %2 %3
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Fetch the row which has the Max value for a column
... When applied to a table having 8.8 million rows, this query took half the time of the queries in some the other highly voted answers.
– Derek Mahar
Apr 15 '11 at 23:59
4
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How to find time complexity of an algorithm
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How to find time complexity of an algorithm
You add up how many machine instructions it will execute as a function of the size of its input, and then simplify the expression to the largest (when N is very large) term and can include a...