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Different bash prompt for different vi editing mode?
... to have a prompt that depends on the mode you are currently in (insert or command). How does one find out this editing mode?
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How do I upgrade my ruby 1.9.2-p0 to the latest patch level using rvm?
...tall the new ruby version, just run rvm install 1.9.2 - and wait for it to compile!
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How do I concatenate const/literal strings in C?
... *strcat(char *dest, const char *src);
Here is an example from cplusplus.com:
char str[80];
strcpy(str, "these ");
strcat(str, "strings ");
strcat(str, "are ");
strcat(str, "concatenated.");
For the first parameter, you need to provide the destination buffer itself. The destination buffer must...
How can I have a newline in a string in sh?
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Check if a Bash array contains a value
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Shellcheck complains about this solution, SC2199 and SC2076. I couldn't fix the warnings without breaking the functionality. Any thoughts about that other than disabling shellcheck for that line?
– Ali Essam
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How to pass all arguments passed to my bash script to a function of mine? [duplicate]
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The $@ variable expands to all command-line parameters separated by spaces. Here is an example.
abc "$@"
When using $@, you should (almost) always put it in double-quotes to avoid misparsing of arguments containing spaces or wildcards (see below). This ...
How to pass the value of a variable to the stdin of a command?
...ld be somewhat secure i.e. does not pass secure data through parameters of commands and preferably does not use temporary files. How can I pass a variable to the stdin of a command? Or, if it's not possible, how to correctly use temporary files for such task?
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How to get a JavaScript object's class?
...ion (x) {return x+x;};
foo.bar(21); // == 42
Note: if you are compiling your code with Uglify it will change non-global class names. To prevent this, Uglify has a --mangle param that you can set to false is using gulp or grunt.
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What is a daemon thread in Java?
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How to round to 2 decimals with Python?
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I'm not sure what induced people to upvote the above comment. For the record, the fact that round(2.675, 2) gives 2.67 rather than 2.68 has nothing at all to do with Banker's rounding.
– Mark Dickinson
Mar 5 '18 at 18:28
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