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How to remove newlines from beginning and end of a string?
I have a string that contains some text followed by a blank line. What's the best way to keep the part with text, but remove the whitespace newline from the end?
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What does the ^ operator do in Java?
What function does the ^ (caret) operator serve in Java?
17 Answers
17
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What's the meaning of interface{}?
... What is an interface?
An interface is two things:
it is a set of methods,
but it is also a type
The interface{} type, the empty interface is the interface that has no methods.
Since there is no implements keyword, all types implement at least zero methods, and satis...
How do I tar a directory of files and folders without including the directory itself?
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cd my_directory/ && tar -zcvf ../my_dir.tgz . && cd -
should do the job in one line. It works well for hidden files as well. "*" doesn't expand hidden files by path name expansion at least in bash. Below is my experiment:
$ mkdir my_director...
Writing a Python list of lists to a csv file
I have a long list of lists of the following form ---
10 Answers
10
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How do I create a self-signed certificate for code signing on Windows?
...cript (assuming here it's named script.ps1, fix the path accordingly).
Set-AuthenticodeSignature .\script.ps1 -Certificate (Get-ChildItem Cert:\CurrentUser\My -CodeSigningCert)
Obviously once you have setup the key, you can simply sign any other scripts with it.
You can get more detailed infor...
How to access command line arguments of the caller inside a function?
I'm attempting to write a function in bash that will access the scripts command line arguments, but they are replaced with the positional arguments to the function. Is there any way for the function to access the command line arguments if they aren't passed in explicitly?
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Can I mask an input text in a bat file?
...g two scripts do the job you want.
First, getpwd.cmd:
@echo off
<nul: set /p passwd=Password:
for /f "delims=" %%i in ('cscript /nologo getpwd.vbs') do set passwd=%%i
echo.
Then, getpwd.vbs:
Set oScriptPW = CreateObject("ScriptPW.Password")
strPassword = oScriptPW.GetPassword()
Wscript.StdO...
Time complexity of Euclid's Algorithm
I am having difficulty deciding what the time complexity of Euclid's greatest common denominator algorithm is. This algorithm in pseudo-code is:
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Print a string as hex bytes?
...ing: Hello world !! and I want to print it using Python as 48:65:6c:6c:6f:20:77:6f:72:6c:64:20:21:21 .
13 Answers
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