mktemp | mktemp command for node.js | Runtime Evironment library

I have a problem. This is my script:

When I use mkdir to create a directory named WORKDIR in the cwd, the following way works perfectly fine:

I'm writing unit-tests to test file-IO functions. There's no formalized test-framework in my target language, so my idea is to run a little test program that somehow manipulates files in a test-directory, and after that checks the results in a little shell script.

To evaluate the output, I want to check a given directory whether all expected files are there and no other files have been created during the test.

My first attempt goes like this:

I have 500 files and I want to merge them by adding columns. My first file

TL;DR: update your bin/qgtunnel.

I've recently noticed an increase in my web dyno's memory usage. After digging a bit, I could see that the LD_PRELOAD variable that should be set with heroku-buildpack-jemalloc was not set correctly. I used a tiny script (bin/show_preload) that helped me debug that and trace which program was overriding LD_PRELOAD.

I am trying to write a shell script which will take various non-human readable files and convert them to something human readable.

I have the following code

I'd like to run a linux console command from a terminal, preventing it from accessing the TTY by itself (which will, for example, happen often when the console command tries to request a password from the user - this should just fail). The closest I get to a solution is using this wrapper:

I'll explain my problem statement first. I have a command1 which generates data on both stderr and stdout, the stdout is piped to command2, while the stderr should go to a background process which continuously calls an API.

Dummy example of the same:

I wanted to create a temporary file and was going through the mktemp manual and found that mktemp with -u option is stated as unsafe, what is the reason behind this ?