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How can I rollback a github repository to a specific commit?
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Adding code to a javascript function programmatically
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How to use classes from .jar files?
... However, it's much better idea to package your program in a jar file, and include all the required jars within that. Then, in order to execute your jar, like,
java -jar my_program.jar
you should have a META-INF/MANIFEST.MF file in your jar. See here, for how-to.
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How to remove a package from Laravel using composer?
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PHP: exceptions vs errors?
...y exceptions and errors coexist. If designed from scratch, php should only include one or the other.
– Tomas Zubiri
Dec 29 '16 at 14:31
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Get current time in seconds since the Epoch on Linux, Bash
...ONDS.
$ echo $EPOCHSECONDS
1547624774
There is also EPOCHREALTIME which includes fractions of seconds.
$ echo $EPOCHREALTIME
1547624774.371215
EPOCHREALTIME can be converted to micro-seconds (μs) by removing the decimal point. This might be of interest when using bash's built-in arithmetic ((...
Please explain some of Paul Graham's points on Lisp
...macro and just like a regular macro, it can execute any sort of Lisp code, including code which has itself been written with funky notation enabled by previously registered reader macros. So there's the whole language at read time for you.
Wrapping it up:
Actually, what has been demonstrated thus fa...
Fast Linux File Count for a large number of files
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The fastest way is a purpose-built program, like this:
#include <stdio.h>
#include <dirent.h>
int main(int argc, char *argv[]) {
DIR *dir;
struct dirent *ent;
long count = 0;
dir = opendir(argv[1]);
while((ent = readdir(dir)))
++count...
How to use ng-repeat without an html element
...peat-start="itemGroup in Groups" ></remove>
html stuff in here including inner repeating loops if you want
<remove ng-repeat-end></remove>
add an angular.js directive
//remove directive
(function(){
var remove = function(){
return {
restrict: ...
how to solve “ruby installation is missing psych” error?
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