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Avoid trailing zeroes in printf()
...ll remove all but the first N decimals, then strip off the trailing zeros (and decimal point if they were all zeros).
char str[50];
sprintf (str,"%.20g",num); // Make the number.
morphNumericString (str, 3);
: :
void morphNumericString (char *s, int n) {
char *p;
int count;
p = str...
How can I obtain the element-wise logical NOT of a pandas Series?
I have a pandas Series object containing boolean values. How can I get a series containing the logical NOT of each value?
...
Linux command to print directory structure in the form of a tree
Is there any linux command that I can call from a Bash script that will print the directory structure in the form of a tree, e.g.,
...
How to read the mode field of git-ls-tree's output
...digits show file type, the third one is about set-uid/set-gid/sticky bits, and you know the last three.
Here is how man 2 stat documents it on my GNU/Linux system:
The following flags are defined for the st_mode field:
S_IFMT 0170000 bit mask for the file type bit fields
S_...
How to negate a method reference predicate
...w that shows how by explicitly casting the method reference to a Predicate and then converting it using the negate function. That is one way among a few other not too troublesome ways to do it.
The opposite of this:
Stream<String> s = ...;
int emptyStrings = s.filter(String::isEmpty).count()...
Shell command to sum integers, one per line?
I am looking for a command that will accept (as input) multiple lines of text, each line containing a single integer, and output the sum of these integers.
...
How to use java.String.format in Scala?
...d know how it should display the string. %s is probably the most common, and it just means that the argument should be treated as a string.
I won't list every option, but I'll give a few examples just to give you an idea:
// we can specify the # of decimals we want to show for a floating point:
...
How to output only captured groups with sed?
...as well as specifying what you do want.
string='This is a sample 123 text and some 987 numbers'
echo "$string" | sed -rn 's/[^[:digit:]]*([[:digit:]]+)[^[:digit:]]+([[:digit:]]+)[^[:digit:]]*/\1 \2/p'
This says:
don't default to printing each line (-n)
exclude zero or more non-digits
include on...
“rm -rf” equivalent for Windows?
I need a way to recursively delete a folder and its children.
21 Answers
21
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Maximum number of characters using keystrokes A, Ctrl+A, Ctrl+C and Ctrl+V
.... Then we iterate through for i up to n, doing two things: pressing A once and pressing select all + copy followed by paste j times (actually j-i-1 below; note the trick here: the contents are still in the clipboard, so we can paste it multiple times without copying each time). We only have to consi...