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Convert decimal to hexadecimal in UNIX shell script
In a UNIX shell script, what can I use to convert decimal numbers into hexadecimal? I thought od would do the trick, but it's not realizing I'm feeding it ASCII representations of numbers.
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Unix shell script to truncate a large file
I am trying to write a Unix script which will truncate/empty a file which is continuously being written/open by an application when it reaches say 3GB of space. I know that the below command would do it :
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Can Selenium interact with an existing browser session?
...ou can dump the executor_command url & session id into a file when the script starts and read it from the file when do you want to hook the browser session again.
– S.K. Venkat
Dec 22 '19 at 16:04
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JavaScript: Check if mouse button down?
Is there a way to detect if a mouse button is currently down in JavaScript?
16 Answers
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How do you run a Python script as a service in Windows?
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@Kit: run your script with the from the command line with the parameter "install". Then you'll be able to see your application in Windows' Services list, where you can start it, stop it, or set it to start automatically
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Redis: Show database size/size for keys
...to aggregate all values for KEYS * which shouldn't be too difficult with a scripting language of your choice...
The bad thing is that redis.io doesn't really have a lot of information about DEBUG OBJECT.
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Get hours difference between two dates in Moment Js
...(`${differenceInHours} hours have passed since this time yesterday`);
<script
src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.20.1/moment.min.js">
</script>
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What is a callback?
...rver code from the
client without performing a postback.
If the client script in the page is
maintaining some state information
(for example, local variable values),
posting the page and getting a new
copy of it destroys that state.
Additionally, page postbacks introduce
processing o...
A variable modified inside a while loop is not remembered
...ollowing
approach.
Say /usr/local/bin/ipaddr is the following shell script:
#! /bin/sh
host `hostname` | awk '/address/ {print $NF}'
Instead of using
/usr/local/bin/ipaddr | read A B C D
to break the local machine's IP address into separate octets, use
OIFS="$IFS"
IFS=.
set -- ...
PHP how to get local IP of system
... @andras.tim I like simple answers , however when I ran your script it's not returning my machine's IP address, it's returning the IP address used in my virtual machine..what could be the problem though?
– Scarl
Jul 3 '15 at 22:19
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