Convert JSON to name/value pairs using jq for SH output

Example JSON:

{
    "a": 1,
    "b": "\"2"
}

Desired output:

a='1'
b='"2'

Script:

for var in $(echo '{"a":1,"b":"\"2"}' | jq -r 'with_entries(.value |= @sh) | to_entries[] | "\(.key)=\(.value)"'); do
    echo $var
    # do what you want with $var
done

Documentation:

• with_entries/to_entries
• escaping using @sh

Go to playground

Using $ sign inside of Makefile

I’ve just learned that if you want to use a dollar sign inside Makefile you need to escape $ with an extra $.

For example:

LATEST_COMMIT := $(shell git log --oneline | head -1 | awk '{print $1}')

It won’t work because make thinks that we are accessing make variable. If we want to use this awk command inside Makefile we need to escape the $

LATEST_COMMIT := $(shell git log --oneline | head -1 | awk '{print $$1}')

Command line health check with an audio output

script file

#!/bin/bash

response=$(
  curl https://selleo.com \
      --write-out 200 \
      --silent \
      --output /dev/null
)

if test "$response" -ge 200 && test "$response" -le 299 ; then
  say "yay, it works"
else
  say "oops"
fi

run the script with watch

watch -n 5 "./script"

Linux users can use spd-say

Change pager for `man`

man vim -P bat

or globally

echo "alias man='man -P bat'" >> ~/.zshrc # ~/.bashrc