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How do I grab an INI value within a shell script?
... above, e.g. grep =), the same for other unexpected errors.
If you need to read specific value under specific section, use grep -A, sed, awk or ex).
E.g.
source <(grep = <(grep -A5 '\[section-b\]' file.ini))
Note: Where -A5 is the number of rows to read in the section. Replace source with c...
How to make the 'cut' command treat same sequental delimiters as one?
...'t), in contrast with the awk solution. The awk solution is also much more readable and less verbose.
– n.caillou
Apr 4 '18 at 23:31
...
Maven: Non-resolvable parent POM
...s means you cannot resolve the parent repo.
Trun on debug mode:
[DEBUG] Reading global settings from **/usr/local/Cellar/maven/3.5.4/libexec/conf/settings.xml**
[DEBUG] **Reading user settings from /Users/username/.m2/settings.xml**
[DEBUG] Reading global toolchains from /usr/local/Cellar/maven/3...
What is a memory fence?
...ut of order to make maximum use of the available silicon (including memory read/writes). Because the hardware enforces instructions integrity you never notice this in a single thread of execution. However for multiple threads or environments with volatile memory (memory mapped I/O for example) this ...
PHP 5: const vs static
...
Old thread, but I would like to add something: check out php.net/manual/en/…, which explains static variables are very useful in singletons and recursive functions as well. Because you CAN change the value but the variable will ...
Run a Python script from another Python script, passing in arguments [duplicate]
...
Won't that fail for multithreaded scripts?
– MarioVilas
Mar 13 '13 at 11:01
...
C: Run a System Command and Get Output? [duplicate]
...har *argv[] )
{
FILE *fp;
char path[1035];
/* Open the command for reading. */
fp = popen("/bin/ls /etc/", "r");
if (fp == NULL) {
printf("Failed to run command\n" );
exit(1);
}
/* Read the output a line at a time - output it. */
while (fgets(path, sizeof(path), fp) != NUL...
How expensive is the lock statement?
I've been experimenting with multi threading and parallel processing and I needed a counter to do some basic counting and statistic analysis of the speed of the processing. To avoid problems with concurrent use of my class I've used a lock statement on a private variable in my class:
...
ViewBag, ViewData and TempData
...
TempData
Basically it's like a DataReader, once read, data will be lost.
Check this Video
Example
public class HomeController : Controller
{
public ActionResult Index()
{
ViewBag.Message = "Welcome to ASP.NET MVC!";
TempData["T"] = "...
Set environment variables from file of key/value pairs
...
Although reading the file line-by-line and passing each line to export is not ideal, the problem can also be fixed by simply using input redirection on the loop: while read line; do ... ; done < ./conf/$1.
– c...