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How to get the last character of a string in a shell?
...y you need to quote your variables:
echo "${str:$i:1}"
Otherwise, bash expands the variable and in this case does globbing before printing out. It is also better to quote the parameter to the script (in case you have a matching filename):
sh lash_ch.sh 'abcde*'
Also see the order of expansions in ...
How can a Java variable be different from itself?
...same with Double.NaN.
From JLS §15.21.1. Numerical Equality Operators == and !=:
Floating-point equality testing is performed in accordance with the rules of the IEEE 754 standard:
If either operand is NaN, then the result of == is false but the result of != is true.
Indeed, the test x!=x is tru...
How to sort a list of strings?
...amples above are a bit naive, because they don't take locale into account, and perform a case-sensitive sorting. You can take advantage of the optional parameter key to specify custom sorting order (the alternative, using cmp, is a deprecated solution, as it has to be evaluated multiple times - key ...
.htaccess redirect all pages to new domain
...ited the code so it can finally work. (the correct is to redirect if EQUAL and not DIFFERENT to olddomain, that ! was the problem)
– carla
Jan 20 '17 at 18:59
6
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Something better than .NET Reflector? [closed]
...h is absolutely ridiculous), half the time the update doesn't go smoothly, and it is increasingly hindering my productivity with each update. I am sick of it, and I am ready for something better. Is there a better disassembler?
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Android Reading from an Input stream efficiently
I am making an HTTP get request to a website for an android application I am making.
12 Answers
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gcc makefile error: “No rule to make target …”
...ionships. If newer tools like SubCons or CMake are not to taste, gcc -MT and gnu make patterns can solve this. See also.
– Nathan Kidd
Mar 14 '13 at 18:09
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FontAwesome icons not showing. Why?
Recently I've been developing this website and I'm trying to put a font awesome icons in it, so it's scalable.
24 Answers
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How can I suppress all output from a command using Bash?
...
The following sends standard output to the null device (bit bucket).
scriptname >/dev/null
And if you also want error messages to be sent there, use one of (the first may not work in all shells):
scriptname &>/dev/null
scriptname &gt...
java: ArrayList - how can i check if an index exists?
I'm using ArrayList<String> and I add data at specific indices,
how can I check if a specific index exists?
11 Ans...