Shell scripting

How to get the process id of the current kakoune client?

if you run this in the kakoune command line:

echo %sh{ echo $$ }

You'll get a random number, corresponding to the PID of the temp subshell used to run the command. You need the PID of the parent, which translates to :

echo %sh{ echo $PPID }

Why should printf be favored over echo?

https://unix.stackexchange.com/questions/65803/why-is-printf-better-than-echo