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Running Bash commands in Python
On my local machine, I run a python script which contains this line
9 Answers
9
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How do I capture the output into a variable from an external process in PowerShell?
...tput from multiple commands, use either a subexpression ($(...)) or call a script block ({ ... }) with & or .:
$cmdOutput = $(<command>; ...) # subexpression
$cmdOutput = & {<command>; ...} # script block with & - creates child scope for vars.
$cmdOutput = . {<command&g...
Is there an equivalent to CTRL+C in IPython Notebook in Firefox to break cells that are running?
...
UPDATE: Turned my solution into a stand-alone python script.
This solution has saved me more than once. Hopefully others find it useful. This python script will find any jupyter kernel using more than cpu_threshold CPU and prompts the user to send a SIGINT to the kernel (Keybo...
How to calculate time elapsed in bash script?
I print the start and end time using date +"%T" , which results in something like:
20 Answers
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Using jquery to get element's position relative to viewport
...left: 0; top: 0; font: medium monospace; background-color: #EEE8AA; }
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<!-- scroll right and bottom to locate the blue square -->
<div id="element"></div>
<div id="log">&...
Input placeholders for Internet Explorer
...pendencies (so no need to include jQuery, unlike most placeholder polyfill scripts)."
Edit: For those more interested in "how" that "what", How to create an advanced HTML5 placeholder polyfill which walks through the process of creating a jQuery plugin that does this.
Also, see keep placeholder on...
Can linux cat command be used for writing text to file?
...o write raw text to files, to update my CPU-settings. Hope this helps out!
Script:
#!/bin/sh
cat > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor <<EOF
performance
EOF
cat > /sys/devices/system/cpu/cpu1/cpufreq/scaling_governor <<EOF
performance
EOF
This writes the tex...
Simple argparse example wanted: 1 argument, 3 results
...it with argparse (with multiple args):
parser = argparse.ArgumentParser(description='Description of your program')
parser.add_argument('-f','--foo', help='Description for foo argument', required=True)
parser.add_argument('-b','--bar', help='Description for bar argument', required=True)
args = vars(...
How to delete images from a private docker registry?
...lly removing the reference to the associated images. Then you can run this script to remove all images, that are not referenced by any tag or the ancestry of any used image.
Terminology (images and tags)
Consider an image graph like this where the capital letters (A, B, ...) represent short image ...
How to validate an email address using a regular expression?
...resses that you probably wouldn't want to accept such as "a<body/onload=alert('lol.com?'+document.cookies) @a.a>" which is a valid email address in perl's Email::Valid (which uses that huge regex), and can be exploited for XSS rt.cpan.org/Public/Bug/Display.html?id=75650
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