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Remove redundant paths from $PATH variable
I have defined the same path in the $PATH variable 6 times.
11 Answers
11
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Replacing spaces with underscores in JavaScript?
I'm trying to use this code to replace spaces with _, it works for the first space in the string but all the other instances of spaces remain unchanged. Anybody know why?
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Why is my Spring @Autowired field null?
Note: This is intended to be a canonical answer for a common problem.
18 Answers
18
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How can I add numbers in a Bash script?
I have this Bash script and I had a problem in line 16.
How can I take the previous result of line 15 and add
it to the variable in line 16?
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What are the differences between a pointer variable and a reference variable in C++?
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A pointer can be re-assigned:
int x = 5;
int y = 6;
int *p;
p = &x;
p = &y;
*p = 10;
assert(x == 5);
assert(y == 10);
A reference cannot, and must be assigned at initialization:
int x = 5;
int y = 6;
int &r = x;
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Bash tool to get nth line from a file
Is there a "canonical" way of doing that? I've been using head -n | tail -1 which does the trick, but I've been wondering if there's a Bash tool that specifically extracts a line (or a range of lines) from a file.
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filtering NSArray into a new NSArray in Objective-C
... NSArray and I'd like to create a new NSArray with objects from the original array that meet certain criteria. The criteria is decided by a function that returns a BOOL .
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In Python, how do I create a string of n characters in one line of code?
I need to generate a string with n characters in Python. Is there a one line answer to achieve this with the existing Python library? For instance, I need a string of 10 letters:
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Is it worth using Python's re.compile?
Is there any benefit in using compile for regular expressions in Python?
26 Answers
26...
How to mark a build unstable in Jenkins when running shell scripts
In a project I'm working on, we are using shell scripts to execute different tasks. Some are sh/bash scripts that run rsync, and some are PHP scripts. One of the PHP scripts is running some integration tests that output to JUnit XML, code coverage reports, and similar.
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