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Count occurrences of a char in a string using Bash
I need to count the number of occurrences of a char in a string using Bash.
7 Answers
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PowerShell equivalent to grep -f
I'm looking for the PowerShell equivalent to grep --file=filename . If you don't know grep , filename is a text file where each line has a regular expression pattern you want to match.
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How to tell if a tag failed to load
...page's <head> , and I'd like to be able to tell whether the loading failed in some way -- a 404, a script error in the loaded script, whatever.
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Decorators with parameters?
I have a problem with the transfer of variable 'insurance_mode' by the decorator. I would do it by the following decorator statement:
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Is It Possible to NSLog C Structs (Like CGRect or CGPoint)?
...ctures without having to explicitly type every property that they consist of.
8 Answers
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What's the meaning of “=>” (an arrow formed from equals & greater than) in JavaScript?
...r equal to, but I've seen => in some source code. What's the meaning of that operator?
13 Answers
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Why should the copy constructor accept its parameter by reference in C++?
Why must a copy constructor's parameter be passed by reference?
8 Answers
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What are copy elision and return value optimization?
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Introduction
For a technical overview - skip to this answer.
For common cases where copy elision occurs - skip to this answer.
Copy elision is an optimization implemented by most compilers to prevent extra (potentially expensive) copies i...
How to resolve “Error: bad index – Fatal: index file corrupt” when using Git
After git init , I added and committed a few files, made some changes, added and committed. Set up the git daemon (running under Cygwin on WinXP) and cloned the repository once.
Now, I get this error with the cloned repository:
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How often does python flush to a file?
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For file operations, Python uses the operating system's default buffering unless you configure it do otherwise. You can specify a buffer size, unbuffered, or line buffered.
For example, the open function takes a buffer size...