| Command Echoing Normally make prints each command line before it is executed. We call this echoing because it gives the appearance that you are typing the commands yourself.
When a line starts with `@', the echoing of that line is suppressed. The `@' is discarded before the command is passed to the shell. Typically you would use this for a command whose only effect is to print something, such as an echo command to indicate progress through the makefile:
@echo About to make distribution files
When make is given the flag `-n' or `--just-print', echoing is all that happens, no execution. See section Summary of Options. In this case and only this case, even the commands starting with `@' are printed. This flag is useful for finding out which commands make thinks are necessary without actually doing them.
The `-s' or `--silent' flag to make prevents all echoing, as if all commands started with `@'. A rule in the makefile for the special target .SILENT without dependencies has the same effect (see section Special Built-in Target Names). .SILENT is essentially obsolete since `@' is more flexible.
[링크 : http://web.mit.edu/gnu/doc/html/make_5.html] |