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Split code over multiple lines in an R script
...gree with the reject. The answer is still correct, has its context and the comments update it.
– Dirk Eddelbuettel
Sep 19 '13 at 11:38
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Reset CSS display property to default value
...nal). Information about browser support for revert can be found on caniuse.com.
While the level 3 spec does introduce an initial keyword, setting a property to its initial value resets it to its default value as defined by CSS, not as defined by the browser. The initial value of display is inline; t...
“#include” a text file in a C program as a char[]
...s there a way to include an entire text file as a string in a C program at compile-time?
17 Answers
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How to get the instance id from within an ec2 instance?
... not work (for me) on a new EC2 host. The documentation -- docs.aws.amazon.com/AWSEC2/latest/UserGuide/… -- only mentions the 169.254 address, and makes no mention of the "instance-data" hostname. i.e. use 169.254.169.254/latest/meta-data/instance-id
– JDS
Fe...
What is the right way to check for a null string in Objective-C?
... thing to note is that [title isKindOfClass:[NSNull class]] is pointlessly complex since [NSNull null] is documented to be a singleton so you can just check for pointer equality. See Topics for Cocoa: Using Null.
So a good test might be:
if (title == (id)[NSNull null] || title.length == 0 ) title ...
Using curl POST with variables defined in bash script functions
...\
-X POST --data "$(generate_post_data)" "https://xxx:xxxxx@xxxx-www.xxxxx.com/xxxxx/xxxx/xxxx"
This said, here are a few clarifications about shell quoting rules:
The double quotes in the -H arguments (as in -H "foo bar") tell bash to keep what's inside as a single argument (even if it contains ...
What's the main difference between int.Parse() and Convert.ToInt32
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edited Jun 20 at 9:12
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answered Oct 13 '08 at 23:53
Dave MarkleDave Mar...
How to convert a PIL Image into a numpy array?
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How to configure socket connect timeout
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CentOS 64 bit bad ELF interpreter
... output), and for each one you need to find the package that provides it.
Commands to find the package per distribution family
Fedora/Red Hat Enterprise/CentOS:
dnf provides /usr/lib/libSM.so.6
or, on older RHEL/CentOS:
yum provides /usr/lib/libSM.so.6
or, on Debian/Ubuntu:
first, install...