Bash command id in my Makefile not working

Question

How do you do to get your UID on Makefile. I use id -u in my prompt and thats return my UID withou problem but in my Makefile

perm-user:
    @echo $(id -u)

That's return nothing. Someone have a idea ? Thanks for your help

Answer 1

Escape the $ so the shell interprets it rather than make.

@echo $$(id -u)

There's no need for the echo, though. echo $(cmd) is the same as cmd.

@id -u