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What's the difference between the data structure Tree and Graph?
...recursive pointer-based structure. The representation is not unique for unrooted trees, but that is immaterial.
– j_random_hacker
Jul 7 '14 at 9:42
2
...
Is there an S3 policy for limiting access to only see/access one bucket?
...ckets permission is that the recipient of this policy can see all of your (root's) buckets. There is no data disclosure directly, but there might be sensitivity/confusion around bucket names. It is feasible to remove this particular permission and things should still work (although "s3cmd ls" etc wi...
How to use redis PUBLISH/SUBSCRIBE with nodejs to notify clients when data values change?
...but not least the sample code from media fire.
Install node.js+npm(as non root)
First you should(if you have not done this yet) install node.js+npm in 30 seconds (the right way because you should NOT run npm as root):
echo 'export PATH=$HOME/local/bin:$PATH' >> ~/.bashrc
. ~/.bashrc
mkdir ~...
How can I get the current network interface throughput statistics on Linux/UNIX? [closed]
...
This assumes root access is available
– Lionel
Nov 7 '11 at 4:18
20
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Excluding directories in os.walk
...ited by os.walk:
# exclude = set(['New folder', 'Windows', 'Desktop'])
for root, dirs, files in os.walk(top, topdown=True):
dirs[:] = [d for d in dirs if d not in exclude]
From help(os.walk):
When topdown is true, the caller can modify the dirnames list in-place
(e.g., via del or slice assign...
Creating a daemon in Linux
...e permissions */
umask(0);
/* Change the working directory to the root directory */
/* or another appropriated directory */
chdir("/");
/* Close all open file descriptors */
int x;
for (x = sysconf(_SC_OPEN_MAX); x>=0; x--)
{
close (x);
}
/* Open...
Where can I get a list of Ansible pre-defined variables?
...
"root": "/dev/mapper/precise32-root"
}, ...
How to insert a value that contains an apostrophe (single quote)?
...g REPLACE to sanitize incoming values:
Oracle REPLACE
SQL Server REPLACE
MySQL REPLACE
PostgreSQL REPLACE
You want to check for '''', and replace them if they exist in the string with '''''' in order to escape the lone single quote.
...
tomcat - CATALINA_BASE and CATALINA_HOME variables
... is a pretty good description of this setup in the RUNNING.txt file in the root of the Apache Tomcat distribution under the heading Advanced Configuration - Multiple Tomcat Instances
share
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improve...
How to extract a git subdirectory and make a submodule out of it?
...nstall
Usage
Split a larger into smaller chunks:
# Go into the project root
cd ~/my-project
# Create a branch which only contains commits for the children of 'foo'
git subtree split --prefix=foo --branch=foo-only
# Remove 'foo' from the project
git rm -rf ./foo
# Create a git repo for 'foo' (...