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How to find the last field using 'cut'
...s. Based on our interactions with the OP we know that awk/sed/etc. are not allowed in his homework, but a reference to rev has not been made. So it was worth a shot
– zedfoxus
Mar 29 '14 at 5:03
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Why is list initialization (using curly braces) better than the alternatives?
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Basically copying and pasting from Bjarne Stroustrup's "The C++ Programming Language 4th Edition":
List initialization does not allow narrowing (§iso.8.5.4). That is:
An integer cannot be converted to another integer that cann...
clearing a char array c
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@robUK, yes you are correct. Technically '\0' is equal to 0 (in ascii) but you should use '\0' because it makes your intention clear
– Mark Testa
Mar 11 '09 at 2:23
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How do you convert an entire directory with ffmpeg?
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Previous answer will only create 1 output file called out.mov. To make a separate output file for each old movie, try this.
for i in *.avi;
do name=`echo "$i" | cut -d'.' -f1`
echo "$name"
ffmpeg -i "$i" "${name}.mov"
done
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What is the simplest way to get indented XML with line breaks from XmlDocument?
...y already has everything nicely indented with line breaks. However, if I call LoadXml on some very "compressed" XML (no line breaks or indention) then the output of OuterXml stays that way. So ...
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Behaviour for significant change location API when terminated/suspended?
...estion.
That is, your suspended app is woken up, you don't receive any callbacks on your app delegate, instead you receive your location updates through your existing CLLocationManagerDelegate. You can detect that you are running in the background by checking the applicationState, and do limited...
Should I use JSLint or JSHint JavaScript validation? [closed]
...otherwise the comments wouldn't make sense).
When this question was originally asked, JSLint was the main linting tool for JavaScript. JSHint was a new fork of JSLint, but had not yet diverged much from the original.
Since then, JSLint has remained pretty much static, while JSHint has changed a gr...
How do you automatically set the focus to a textbox when a web page loads?
How do you automatically set the focus to a textbox when a web page loads?
13 Answers
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How to extract a floating number from a string [duplicate]
...ecimal notation something like
>>> import re
>>> re.findall("\d+\.\d+", "Current Level: 13.4 db.")
['13.4']
may suffice.
A more robust version would be:
>>> re.findall(r"[-+]?\d*\.\d+|\d+", "Current Level: -13.2 db or 14.2 or 3")
['-13.2', '14.2', '3']
If you want t...
How to display the function, procedure, triggers source code in postgresql?
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\df+ outputs a lot more than the code. If all you want is the code, \sf will do the trick!
– Telic
May 10 '17 at 22:47
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