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Get OS-level system information
... Runtime.getRuntime().totalMemory());
/* Get a list of all filesystem roots on this system */
File[] roots = File.listRoots();
/* For each filesystem root, print some info */
for (File root : roots) {
System.out.println("File system root: " + root.getAbsolutePath());
Sy...
How to get root view controller?
I need an instance of root view controller.
7 Answers
7
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Getting root permissions on a file inside of vi? [closed]
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If you need root privileges to save a new file, replace % with the name (including path) of the new file.
– gvkv
Aug 10 '10 at 0:47
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Verify a certificate chain using openssl verify
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If a certificate is found which is its own issuer it is assumed to be the root CA.
In other words, root CA needs to self signed for verify to work. This is why your second command didn't work. Try this instead:
openssl verify -CAfile RootCert.pem -untrusted Intermediate.pem UserCert.pem
It will v...
How do I get the current date and time in PHP?
...tetime;
$now = new DateTime();
echo $now->format('Y-m-d H:i:s'); // MySQL datetime format
echo $now->getTimestamp(); // Unix Timestamp -- Since PHP 5.3
And to specify the timezone:
$now = new DateTime(null, new DateTimeZone('America/New_York'));
$now->setTimezone(new DateTi...
Where is the Java SDK folder in my computer? Ubuntu 12.04
...in /usr/bin/java.
Dig again:
Step 2:
$ ls -l /usr/bin/java
lrwxrwxrwx 1 root root 22 2009-01-15 18:34 /usr/bin/java -> /etc/alternatives/java
So, now we know that /usr/bin/java is actually a symbolic link to /etc/alternatives/java.
Dig deeper using the same method above:
Step 3:
$ ls -l /...
How to add directory to classpath in an application run profile in IntelliJ IDEA?
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@uaaquarius, Why is it that if I add mysql-connector-java-5.1.45/mysql-connector-java-5.1.45-bin.jar as dependency using the other method at stackoverflow.com/a/16742141/632951 it works, but doing using -Xbootclasspath/a it doesn't?
– Pace...
How to enable PHP short tags?
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/etc/php.d/gd.ini,
/etc/php.d/json.ini,
/etc/php.d/mcrypt.ini,
/etc/php.d/mysql.ini,
/etc/php.d/mysqli.ini,
/etc/php.d/pdo.ini,
/etc/php.d/pdo_mysql.ini,
/etc/php.d/pdo_sqlite.ini,
/etc/php.d/phar.ini,
/etc/php.d/sqlite3.ini,
/etc/php.d/zip.ini
See 2nd line from the comment output.The file will b...
In Python, when to use a Dictionary, List or Set?
...om a sequence, and computing mathematical operations such as intersection, union, difference, and symmetric difference.
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gdb fails with “Unable to find Mach task port for process-id” error
...nks. This plus code signing were required to get gdb to work. I gave gdb root access (as described here stackoverflow.com/questions/10476154/…) so I didn't have to type sudo each time. Edit - Found a better approach here: stackoverflow.com/a/10441587/305149
– Aneil Mallava...