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Perl flags -pe, -pi, -p, -w, -d, -i, -t?
...ns (for most things):
$ perl -MO=Deparse -p -e 1
LINE: while (defined($_ = <ARGV>)) {
'???';
}
continue {
die "-p destination: $!\n" unless print $_;
}
-e syntax OK
1 is represented by '???', because it is optimized away.
$ perl -MO=Deparse -p -i -e 1
BEGIN { $^I = ""; }
LINE...
Android Studio installation on Windows 7 fails, no JDK found
...
Adding a system variable JDK_HOME with value c:\Program Files\Java\jdk1.7.0_21\ worked for me. The latest Java release can be downloaded here.
Additionally, make sure the variable JAVA_HOME is also set with the above location.
...
How to reset postgres' primary key sequence when it falls out of sync?
...psql and run the following
-- What is the result?
SELECT MAX(id) FROM your_table;
-- Then run...
-- This should be higher than the last result.
SELECT nextval('your_table_id_seq');
-- If it's not higher... run this set the sequence last to your highest id.
-- (wise to run a quick pg_dump first.....
How do I print a list of “Build Settings” in Xcode project?
.../usr/bin:/bin:/usr/sbin:/sbin"
LANG en_US.US-ASCII
IPHONEOS_DEPLOYMENT_TARGET 4.1
ACTION build
AD_HOC_CODE_SIGNING_ALLOWED NO
ALTERNATE_GROUP staff
ALTERNATE_MODE ...
Multiple “order by” in LINQ
...
This should work for you:
var movies = _db.Movies.OrderBy(c => c.Category).ThenBy(n => n.Name)
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CSV API for Java [closed]
...nipulation of CSV cells. From http://super-csv.github.io/super-csv/examples_reading.html you'll find e.g.
given a class
public class UserBean {
String username, password, street, town;
int zip;
public String getPassword() { return password; }
public String getStreet() { return st...
Getting Java version at runtime
... every JVM. There are two possible formats for it:
Java 8 or lower: 1.6.0_23, 1.7.0, 1.7.0_80, 1.8.0_211
Java 9 or higher: 9.0.1, 11.0.4, 12, 12.0.1
Here is a trick to extract the major version: If it is a 1.x.y_z version string, extract the character at index 2 of the string. If it is a x.y.z v...
What is a plain English explanation of “Big O” notation?
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-1: This is blatantly wrong: _"BigOh is relative representation of complexity of algorithm". No. BigOh is an asymptotic upper bound and exists quite well independent of computer science. O(n) is linear. No, you are confusing BigOh with theta. log n is O(...
Django MEDIA_URL and MEDIA_ROOT
...
# ... the rest of your URLconf goes here ...
) + static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT)
You no longer need if settings.DEBUG as Django will handle ensuring this is only used in Debug mode.
ORIGINAL answer for Django <= 1.6
Try putting this into your urls.py
from...
What's the meaning of exception code “EXC_I386_GPFLT”?
What's the meaning of exception code EXC_I386_GPFLT ?
12 Answers
12
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