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How can I randomize the lines in a file using standard tools on Red Hat Linux?
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I'm usually a Perl fan, but came across this ruby example which has the benefit of being shorter: ruby -e 'puts STDIN.readlines.shuffle'. It would need testing on big inputs to see if the speed is comparable. (also works on OS X)
– mivk
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Android, getting resource ID from string?
...con", R.drawable.class); // or other resource class
I just found a blog post saying that Resources.getIdentifier() is slower than using reflection like I did. Check it out.
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In Python, how do I create a string of n characters in one line of code?
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This might be a little off the question, but for those interested in the randomness of the generated string, my answer would be:
import os
import string
def _pwd_gen(size=16):
chars = string.letters
chars_len = len(chars)
return str().join(chars[int(ord(c) / 256...
How to include external Python code to use in other files?
If you have a collection of methods in a file, is there a way to include those files in another file, but call them without any prefix (i.e. file prefix)?
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Take a char input from the Scanner
...al keyboard strokes, this is not going to work. You would need to do some OS-specific native code stuff to turn off or work around line-buffering for console at the OS level.
Reference:
How to read a single char from the console in Java (as the user types it)?
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How can I convert a stack trace to a string?
... trace to String. This class is available in Apache commons-lang which is most common dependent library with many popular open sources
org.apache.commons.lang.exception.ExceptionUtils.getStackTrace(Throwable)
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Mysql adding user for remote access
...IP address in my.cnf. Then you have to have created the user in both localhost and '%' wildcard and grant permissions on all DB's as such . See below:
my.cnf (my.ini on windows)
#Replace xxx with your IP Address
bind-address = xxx.xxx.xxx.xxx
then
CREATE USER 'myuser'@'localhost' IDENTI...
Difference between fmt.Println() and println() in Go
... They are more versatile (fmt.Fprint* can report to any io.Writer, such as os.Stdout, os.Stderr, or even a net.Conn type.) and are not implementation specific.
Most packages that are responsible for output have fmt as a dependency, such as log. If your program is going to be outputting anything in ...
Start service in Android
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it's work for my apps on android sdk 26+ but dose not on android sdk 25 or lower. there have any solution ?
– Mahidul Islam
Mar 12 '18 at 7:29
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How to get full path of a file?
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I suppose you are using Linux.
I found a utility called realpath in coreutils 8.15.
realpath file.txt
/data/ail_data/transformed_binaries/coreutils/test_folder_realpath/file.txt
As per @styrofoam-fly and @arch-standton comments...