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Define a lambda expression that raises an Exception
... @ErlVolton Clever! Though using this anywhere except in a one-off script seems like a terrible idea...
– Kyle Strand
Oct 14 '14 at 16:01
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Getting the first character of a string with $str[0]
...
It'll vary depending on resources, but you could run the script bellow and see for yourself ;)
<?php
$tests = 100000;
for ($i = 0; $i < $tests; $i++)
{
$string = md5(rand());
$position = rand(0, 31);
$start1 = microtime(true);
$char1 = $string[$position];
...
Read a variable in bash with a default value
I need to read a value from the terminal in a bash script. I would like to be able to provide a default value that the user can change.
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What are some examples of commonly used practices for naming git branches? [closed]
... little confusing. If I get more specific in the names, with a separate description for each stage, then the branch names start to get long and unwieldy.
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How do I set the proxy to be used by the JVM
...hen starting your JVM on the command line.
This is usually done in a shell script (in Unix) or bat file (in Windows). Here's the example with the Unix shell script:
JAVA_FLAGS=-Dhttp.proxyHost=10.0.0.100 -Dhttp.proxyPort=8800
java ${JAVA_FLAGS} ...
When using containers such as JBoss or WebLogic,...
How do I list one filename per output line in Linux?
...gned for human consumption, and you should not parse its output.
In shell scripts, there are a few cases where parsing the output of ls does work is the simplest way of achieving the desired effect. Since ls might mangle non-ASCII and control characters in file names, these cases are a subset of th...
virtualenv --no-site-packages and pip still finding global packages?
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A similar problem can occur on Windows if you call scripts directly as script.py which then uses the Windows default opener and opens Python outside the virtual environment. Calling it with python script.py will use Python with the virtual environment.
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mkdir -p functionality in Python [duplicate]
...s. If you're writing something more sophisticated than a simple throwaway script running in a controlled environment, you're better off going with the accepted answer that requires only one system call.
UPDATE 2012-07-27
I'm tempted to delete this answer, but I think there's value in the comment ...
Where is nodejs log file?
...utting log messages to the console.
ex. forever -o out.log -e err.log my-script.js
and
[Daemon]
The forever process will run as a daemon which will make the target process start
in the background. This is extremely useful for remote starting simple node.js scripts
without using nohup. ...
Linux find file names with given string
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Creating a custom bash script with #!/bin/bash if [ -z $1 ]; then echo "Error: Specify pattern for search"; else /usr/bin/find . -type f -name "*$1*"; fi would let you just run F search-string as a perfect shortcut
– Ilia Ro...