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Why does i = i + i give me 0?
... For anyone who didn't get the symbolism: en.wikipedia.org/wiki/Kill_screen#Pac-Man
– wei2912
Jun 14 '14 at 13:19
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show 7 more comme...
Encoding URL query parameters in Java
...oded / sub-delims / ":" / "@"
unreserved = ALPHA / DIGIT / "-" / "." / "_" / "~"
pct-encoded = "%" HEXDIG HEXDIG
sub-delims = "!" / "$" / "&" / "'" / "(" / ")" / "*" / "+" / "," / ";" / "="
It also seems that only percent-encoded spaces are valid, as I doubt that space is an ALPHA or a...
POST unchecked HTML checkboxes
... Pollution and has been analyzed by OWASP: owasp.org/images/b/ba/AppsecEU09_CarettoniDiPaola_v0.8.pdf (page 9) where you can find a list of 20 systems systems and see how they handle that.
– SimonSimCity
Sep 5 '12 at 21:41
...
server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
...
TLDR:
hostname=XXX
port=443
trust_cert_file_location=`curl-config --ca`
sudo bash -c "echo -n | openssl s_client -showcerts -connect $hostname:$port -servername $hostname \
2>/dev/null | sed -ne '/-BEGIN CERTIFICATE-/,/-END CERTIFICATE-/p' \
&g...
Find and restore a deleted file in a Git repository
...mmit, this commit must have deleted it.
git rev-list -n 1 HEAD -- <file_path>
Then checkout the version at the commit before, using the caret (^) symbol:
git checkout <deleting_commit>^ -- <file_path>
Or in one command, if $file is the file in question.
git checkout $(git re...
download file using an ajax request
...ped me... the example could have been more complete. with "download.php?get_file=true" or something... I have an ajax function that does some error checking on a form submission and then creates a csv file. If the error check fails, it has to come back with why it failed. If it creates the CSV it is...
HTML character decoding in Objective-C / Cocoa Touch
...
en.wikipedia.org/wiki/ISO/IEC_8859-1#ISO-8859-1 or just type &#038; into google.
– Matt Bridges
Jul 12 '09 at 11:39
...
How can I randomize the lines in a file using standard tools on Red Hat Linux?
... to Jim's answer:
My ~/.bashrc contains the following:
unsort ()
{
LC_ALL=C sort -R "$@"
}
With GNU coreutils's sort, -R = --random-sort, which generates a random hash of each line and sorts by it. The randomized hash wouldn't actually be used in some locales in some older (buggy) versions,...
How to remove specific elements in a numpy array
...mpy as np
a = np.array([1, 2, 3, 4, 5, 6, 7, 8, 9])
index = [2, 3, 6]
new_a = np.delete(a, index)
print(new_a) #Prints `[1, 2, 5, 6, 8, 9]`
Note that numpy.delete() returns a new array since array scalars are immutable, similar to strings in Python, so each time a change is made to it, a new ob...
Passing additional variables from command line to make
...r, it only has an effect if the variable is not yet defined):
FOO?=default_value_if_not_set_in_environment
Note that certain variables are not inherited from environment:
MAKE is gotten from name of the script
SHELL is either set within a makefile, or defaults to /bin/sh (rationale: commands ar...