First I'm telling it to, literally, "take whatever output the "whoami" command will produce and store that as variable called X", and then the second command is "print the value of a variable X". The last one is an example of how variables work. "$(command)" means "run this command and just put the output here", so "echo $(whoami)" means literally "print whatever output the "whoami" command will produce". "echo $toutou", again, just prints the empty variable toutou "echo $whoami" literally means "print the value of a variable called whoami" - nothing happens, I didn't create the variable. "whoami" is a command that prints (returns as an output) your current username, as in "who am I?" Look at this example: (the echo command just prints output) (But that's okay, this can be a little confusing) $ sudo chown -R $MY_USERNAME /usr/local/CellarĬorrect idea, incorrect usage. Maybe that's partly where the above problems lie.Īlso, will this app end up in the usual /Applications/ folder, another "common access" folder (such as /System/ or /Library/) or somewhere within my own user folder so I have to use the "sudo" command every time I need to use this particular command line app? And this is where things get confusing, because when I'm asked to "sudo" I never get it to work unless I first do a "login admin_username" (where "admin_username" of course is the admin's username, followed by its password), but then again I don't get access to the files/folders that belongs to my standard user. I always log in as a "standard" user, but if I install something I have to enter the "admin" username and password. I might add that my Mac is set up for multiple users. Minipro.c:1:10: fatal error: 'libusb.h' file not found Cc -g -O0 `pkg-config -cflags libusb-1.0` -c -o byte_utils.o byte_utils.cĬc -g -O0 `pkg-config -cflags libusb-1.0` -c -o database.o database.cĬc -g -O0 `pkg-config -cflags libusb-1.0` -c -o minipro.o minipro.c
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