how to expand system path using ruby? [closed] - ruby

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I'm trying to require modules in my app without using require ./module or require_relative.
I know that in python you can do:
import sys
sys.path.append("whatever")
Then, you can import every module in the "whatever" path.
I guess it is possible to do it in ruby as well, but couldn't figure out a better way than:
ENV["PATH"] += ':whatever'

What about
$LOAD_PATH.unshift('whatever')
$LOAD_PATH.append('whatever')
https://thoughtbot.com/blog/following-the-path

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I need some ideas fo writing a self-destroying program [closed]

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it should be compiled and started only x times and then not anymore, should also be not hackable. for example no use of lock file.
maybe a use-counter in the binary?
im expecting suggestions to my problem here.
For this must use destructur.
Destroyed variables after scope and must nul

how to implement pbewithmd5andtripledes algorithm with golang [closed]

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I want to Implemente encryption algorithm pbewithmd5andtripledes with golang, I can not found the appropriate method
I found a repo, but it is PBEWithMD5AndDES
https://github.com/pineda89/PBEWithMD5AndDES
If you check the libraries code at this line It uses library crypto/des library. crypto/des also provides api for tripleDes. You might want to fork the library and change the implementation suitable to you.

Specify a particular machine name on slurm [closed]

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Hello does someone know how to specific on a slurm file which worker (machine) I want to use ?
Thank for your help
You can specify the nodes that you would like to select with the --nodelist option:
sbatch --nodelist=myHosts[1-5,7] script.sh
More details are described here.
A shorthand version of --nodelist is -w.

How to write a file in ruby without a terminating newline [closed]

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For debugging purposes, I want to alter a rake test so as not to end a saved file with a newline.
I don't know ruby. How do I do this? (file.print doesn't seem to work.)
Not clear what you are doing, but since you tried file.print, it looks like you have access to what is to be printed. Let's say this is string. My guess is that string already has a newline character. Then do:
file.print(string.chomp)

Time difference compare to presence like Twitter in Ruby [closed]

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Is there a gem or another easy way to get time difference compare to present time like Twitter?
Of course I can write it myself, but I don't want to reinvent the wheel.
If you are using rails, you could do
distance_of_time_in_words_to_now #user.created_at
#=> "15 days"
or
time_ago_in_words #post.created_at
#=> "about 13 hours"

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